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207 Cards in this Set
- Front
- Back
Hypothesis may arise from
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all of the above
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A theory
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may be revised or replaced
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Which of the following characteristics of living things best explains why birds fly south?
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Living things respond to their environment
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Cell specialization in multicellular organisms allow cells to
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perform dif functions
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What is the term for a group of organisms of one type living in the same place
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population
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Because you may come in contact with organisms you cannot see, what safety pro must be followd
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WASH UR HANDS
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Whcih of the following is a characteritic of all living things
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ALL of the above
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Living things
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ALL of the above
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All living things maintain a balance within their cells and the environment through the process of
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homeostasis
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THe process by which organisms make more of their own kind is called
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reproduction
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Cystic fibrosis and dystrophy are examples of
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genetic disorders
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A hypothesis that is not supported is
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rejected
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The theme that reflects the idea that there has been a gradual change in the characteristics of species over time is
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evolution
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Living things adjust to a stimulus by a reaction called
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response
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Living things change during their lives through
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growth and development
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Key to biology is learning
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life around us
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Living things do not adapt to their surroundings by
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building on previous knowledge
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The information gathered from experiments is
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the conclusion
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THe part of an experiment in which all conditions are kept the same is the
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control.
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A testable explanation for a question or problem is a
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hypothesis
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An experiment is
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test of a hypothesis
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WHcih is a use of radioactive isotopes
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ALL
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ice floats on water because
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water expands when it freezes
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when salt is dissolved inwater water is the
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solvent
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Which of the following organic compounds is the main source of energy for living things
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carbohydrates
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which is NOT a function of proteins
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store and transmit heredity
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In chemical reactions atoms
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are rearranged
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What is used to describe the energy needed to get a reaction started
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activation energy
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Which of the following is a form of energy that may be released during chem reac
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ALL
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Which is tru about catalysts
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Catalysts lower the activation energy
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Key to biology is learning
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life around us
|
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Living things do not adapt to their surroundings by
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building on previous knowledge
|
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The information gathered from experiments is
|
the conclusion
|
|
THe part of an experiment in which all conditions are kept the same is the
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control.
|
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A testable explanation for a question or problem is a
|
hypothesis
|
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An experiment is
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test of a hypothesis
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WHcih is a use of radioactive isotopes
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ALL
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ice floats on water because
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water expands when it freezes
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when salt is dissolved inwater water is the
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solvent
|
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Which of the following organic compounds is the main source of energy for living things
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carbohydrates
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which is NOT a function of proteins
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store and transmit heredity
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In chemical reactions atoms
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are rearranged
|
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What is used to describe the energy needed to get a reaction started
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activation energy
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Which of the following is a form of energy that may be released during chem reac
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ALL
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Which is tru about catalysts
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Catalysts lower the activation energy
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Sharing of electrons in the outer energy levels
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occurs in covalent bonds
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Water is a polar molecule because
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diff paits of the molecule have slightly diff charges
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All organic compounds contain the element
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CARBON
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animals store glucose in the form of
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glycogen
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The two strands of DNA molecule are held together by
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hydrogen bonds
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A molefule shaped like a spiral
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DNA
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ATP stores energy for cells to use in the bonds between its
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phosphates
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Which of the following conditions affects enzymes
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all of the above
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The size to which a cell can gros is limisted by
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surface area
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Only eukaryotic cells have
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membrane bound organelles
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The structure that regulates what enters and leaves the cell is the
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cell membrane
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The packaging and dist center of the cell is the
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Golgi apparatus
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A cell that requires alot of energy might contain large numbers of
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mitochondria
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As a result of diffusion the concentration of many types of substances
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eventually becomes balanced on both sides of a membrane
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SUgar molecules can enter cells through the proces of
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facilatated diffusion
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Unlike passive transporte active trans
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requires energy
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Molecules that are 2 large to move through the membrane
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endocytosis
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Ridding cell of materials by discharge is
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exocytosis
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Energy flows from the sun throught the living world when
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ALL
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Heteroptrophs get energy from
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ALL
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WHen cells break down food moecules energy is
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temporarily store in ATP
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The process of cellular resp
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breaks down food molecules`
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CEllular respiration takes place in the two stages of
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glycolysis then aerobic respiration
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An imp example of electron accepts that functions in glycolus is
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Nad+
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The final electron acceptor in aerobic respiration is
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oxygen
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Water is end product in
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electron transport chain
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WHish is NOT formed during Krebs cycel
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NADPH
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Binary fission
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is the process by which bacteria reproduce
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The chromosomes of a bacterium
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has a circular shape
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The point at which two chromatids are attached
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centromere
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Homologous chromosomes are pairs of chormosomes containg genes that code for
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the same traits
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The diploid number of chomosomes in a human skin cell is 46 number of chromosomes found in human ovum is
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23
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A diploid cell is one that
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all of the aboce
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trisomy is a mutation that results in a cell havin an extra
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chromosome
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Water dissolves many ionic and molecular compounds because of its
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polarity
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The various enzymes in our bodies are
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proteins
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A very strong base has
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13
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Unlike carbs and fats, proteins contains
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nitrogen
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Diffusion continues until ther is no
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dynamic equilibrium
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the cell theory applies to
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all of the above
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Whcih is a prokaryote
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bacteria
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Which explains why nucleus is imp to cells
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the nucleus contains coded instuctions for making proteins
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Which organelles halp provide cells with energy
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mitochondria and chloroplasts
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you will not find a cell wall in
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animals
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The cell membrane contains channels and ppumps made of
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proteins
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an organ system is a group of organs that
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work together to perform a specific functions
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All livin things are made of
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Plants
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If a cell contains a nucleus it must be a
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eukaryote
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IN a chloroplast the stacks of membranous sacs are called
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stroma
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a cells contents would be the same as its surrounds were it not for the
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selective permeability
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The exchange of segements of DNA
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ensures variations never occur
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budding is an example of
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asexual reproductionq
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The simpliest primitic method of reproducition is
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assexual
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which is an autotroph
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tree
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gas off a plant
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oxygen
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in photosytnethsis six molecules of CO result in sic molecuels of
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OXYGEN
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Whcih is false?????????
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stroma contains thylakoid
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Where do light depen reactions take place
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within thylakoid mambranes
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Which is inside thylakoid membrane
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photosystem I
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What is product of CALVIN cycl
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high energy sugars
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a gene is a segment of DNA that controls the production of
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proteins
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Unlike plant cells animal cells contain
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centrioles
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a chromatid is attached to a spindle fiber by the
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centromere
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the phenotype of an organism
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is the physical appearance
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a genetic trait that apppears in every generation of offspring is called
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dominant
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what is the Xpected genotype ratio froma hetrozygous X homozygous monhybrid cross
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1:2:1
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the unknown genotype of an individual with a dominant phenotype can be determined usin
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a test cross
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if a characteristic is sexlinked it
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occurs mostly in males
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a diagram whch several gernerations are shown is
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pedigree
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what would the blood type be of someone who inherited an A allele from one parenand an O allele from the other
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type A
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whcih of the follosing is released during cellular resliration
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energy
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what is the corerect equation for cellular respiration
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6O2+ c6H1206 > 6CO2 +6H2O plus energy
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whcih takes place in the cytoplasm of a cell
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glycolysis
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Glycolysis provides cell with a net gain of
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2 ATP
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Glycolysis requires
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an energy input
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which is NOt a product of glycolysis
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glucose
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which acts as the ELECTRON carrier in cellular resp
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NAD +
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cellular resp is called aerobic because
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oxygen
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krebs cycle starts wih
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pyruvic acid and yields CO
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electron transport chain can be found in
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all of the above
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each pair of high energy electrons that moves down the ETC provides energy to
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convert three ADP to 3 ATP
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a nucleotide consists of
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sugar phosphate nitrogen base
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whch are purines and which are pyrimadines
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adenine, guanine; thymines cytosine
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the amount of guanine ALWAYS equals the amount of
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cytosine
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the attachment of nucleotides to form a complementary strand of DNA
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is accpmlised by DNA polymerase
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enzymes that unwind DNA
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DNA helicases
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the main energy trapping molecule in plants is
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chlorophyll
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FINAl electron acceptor in ETC Is
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H20
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which represents photosynthe
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6CO2+6H20> C6H1206 + 602
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cells store energy when
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a 3rd phosphate group is bonded to an ATP molecule
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the energy in glucose cannot be rleased by
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BUrning
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ADENINE is complemtary to
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thymine
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function of rRNA is to
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form ribosomes
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during transcription
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RNA is produced
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during transcription the genetic info for making a protein is rewritten as a molecule of
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messenger RNA
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transciption proceeds when RNA polymerase
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attacehes to a promoter molecule
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transcription is the process by which genetic info encoded in DNA is transferred to a
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RNA molecule
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each nucleotide trupled in m RNA that specifies a particular amino acide is called a
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codon
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transfer RNA
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carries amino acid to its correct codon
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during translation the amino acid detaches from the transfer RNA molecule and attaches to the end of a growin protein chain when
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the transfer RNA anticodon binds to the messenger RNA codon
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the portions of DNA molecules that acually code for the production of proteins are called
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exons
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the non codeing portions of DNA that are separated from the portions of DNA actually used during transcription are called
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introns
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crossin over results in
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genetic recombination
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a useful device for predictint he possible offspring of crosses between different genotypes is the
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Punnett square
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cells containing two allesles for each trait are described as
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homozygous
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genes located on homologous chromosomes may have alternate forms that control diff forms of a trait . these alternate forms of a gene are called
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alleles
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variation of human skin color is
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incomplete dominance
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if an organisms dipoid number is 12 its haploid numbe is
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6
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gametes have
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two sets of chromosomes
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which is found in both DNA and RNA
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ribose phosphate groups and adenine
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which is copied from DNA
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m RNA
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during tranlation the type of amino that is added to the growing polpupeptide depends on the
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codon on the mrna and the antiocodon to which it is attached
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genes contain instructions for assembling
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proteins
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which type of RNA functions as a blueprint of the genetic code
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mRNA
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eye color is
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polygenic inheritance
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royal hemophilia is
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sexlinked
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human gentic disorders are caused by
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recessive alleles
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a human genetic disorder caused by a dominant gene is
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huntingtons disease
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which can be observed in a karyotype
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change in DNA base
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nondisjunctin can involve
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all of the above
|
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molecules of ____ insede cellse encode info to direct growth
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DNA
|
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chang in inherited ___ over time is evolution
|
traits
|
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all cells have th esame basic
|
structure
|
|
the sum of all chemical reactions carried out in an orgainsim is
|
metabolism
|
|
the energy used by living organisms originates from the
|
sun
|
|
to function properly all living thins maintain
|
homeostasis
|
|
all isoptopes of an element have the same __ prop
|
chemical
|
|
name of enzyme ends in
|
-ase
|
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the third stage of photsynthesies in whcih carbs are produced is caled ______ _____ fixation
|
carbon dioxide
|
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during the first stage of cellular respiration glucose is converted to
|
pyruvate
|
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because oxygen is the final eectron acceptor tat the end of the electron transport, if oxygen were absent no ___ would be made
|
ATP
|
|
a ______- is a segment of DNA moecule that carries the instructions for producitna a specitfic trait
|
gene
|
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chromosomes not involved in sex determination
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autosomes
|
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somatic cells containtn two sets of 23 chromosomes are always
|
diploid
|
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mutation in which a piece of a chromosome is lost during meiosis is called
|
deletion
|
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when a piec of chormosome attaches itself to a nohomologous chromosome the resulting mutaition is called
|
translocation
|
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cell stufture that contain digestice enzumes are
|
lysosomes
|
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breakdown of molecules inorder to release energy occures in the
|
mitochondria
|
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membrane proteitn called ___ ________ allow H+ ions to pass throught they thylakoid membrane
|
ATP synthase
|
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the electrons that chlorophyll losese to the electon transport chain are repelnisehd by _________ moleucules
|
water
|
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the body gets rid of lactic acid in a chemical pathway that requires
|
oxygen
|
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the seiries of reactions that synthesize simple sugars from carbon dioxide and hydrogen is known as the
|
calvin cycle
|
|
mRNA is produced during
|
translation
|
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during translation, amino acids are brought to the ribosomes by molecules of
|
transfer RNA
|
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nuceotide sequences of tRNA that are complementary to codons on m RNA are claled
|
anticodons
|
|
the sequence of 3 nucleotides that code for specific amino acids or stop signals int eh synthesis of protien is called a
|
codon
|
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the info contained in a molecule of m RNA is used to make protein during the process of
|
transcription
|
|
molecules of ____ insede cellse encode info to direct growth
|
DNA
|
|
chang in inherited ___ over time is evolution
|
traits
|
|
all cells have th esame basic
|
structure
|
|
the sum of all chemical reactions carried out in an orgainsim is
|
metabolism
|
|
the energy used by living organisms originates from the
|
sun
|
|
to function properly all living thins maintain
|
homeostasis
|
|
all isoptopes of an element have the same __ prop
|
chemical
|
|
name of enzyme ends in
|
-ase
|
|
the third stage of photsynthesies in whcih carbs are produced is caled ______ _____ fixation
|
carbon dioxide
|
|
during the first stage of cellular respiration glucose is converted to
|
pyruvate
|
|
because oxygen is the final eectron acceptor tat the end of the electron transport, if oxygen were absent no ___ would be made
|
ATP
|
|
a ______- is a segment of DNA moecule that carries the instructions for producitna a specitfic trait
|
gene
|
|
chromosomes not involved in sex determination
|
autosomes
|
|
somatic cells containtn two sets of 23 chromosomes are always
|
diploid
|
|
mutation in which a piece of a chromosome is lost during meiosis is called
|
deletion
|