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88 Cards in this Set
- Front
- Back
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Scientists use Experiments to test what?
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Their Hypothesis
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What is defined as the amount of space something occupies?
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Volume
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A life Scientist would use what to magnify a living specimen?
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A Compound Light Microscope
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A set of related hypotheses that are supported by evidence may become accepted as a what?
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A Theory
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What is the use of knowledge, tools, and materials to solve problems and accomplish tasks?
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Technology
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What might a life Scientist study?
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How wasps could be used to control fire ant populations
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When researchers use the scientific method they do what?
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repeat or switch the order of steps as needed
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A Scientist who wants to study the possible side effects of a new medicine would probably do what?
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Include a control group that received no medicine
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Which tool would a life scientist use to obtain a image of the nerves in your body?
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an MRI
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What is an Advantage of using the International System of Units?
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It gives scientists a common way to share their results
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In a scientific method a hypothesis that cannot be tested is considered what?
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Not useful
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How many Grams would it take to Have the same amount of matter as a 10 Kg object?
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10,000g
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Why is the rejection of a hypothesis helpful to scientists?
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It helps them know that it is wrong so they can come up with a new hypothesis
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What is the purpose of the control group in a controlled experiment?
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The control group is not given or using what they are trying to test so that they could compare the results
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In a cell membrane what molecules form two layers?
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Phospholids
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When a planarian worm is cut in half each hald develops into one whole worm what is this called?
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asexual reproduction
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What are sometimes called the blueprints of life?
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Nucleic Acids
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What is the passing of traits from one generation to another?
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Heredity
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What refers to all of the chemical activities that an organism`s cells perform?
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Metabolism
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What is a complex carbohydrate manufactured by plants?
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Starch
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When a ducks dives under water, its inner eyelids automatically raise to cover the duck`s eyes in this case, the water acts as what?
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A stimulus
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The molecule that provides energy for cellular processes is what?
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ATP
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The subunits of proteins are what?
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Amino Acids
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Cells do not use What for energy storage?
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Nucleic Acids
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Which of the following is not true of proteins?
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They are the primary source of energy for cells
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What six Characteristics do all living things have in common?
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They develop and Grow, They have Cells, They have DNA, All are organisms get energy, They reproduce, they respond and act to change
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Explain the difference between the structures of simple and complex carbohydrates.
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A simple carbohydrate is made up of 1 or few sugar molecules and a complex carbohydrate is made up of hundreds of molecules
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give and example of simple and complex carbohydrates?
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simple- strawberry
complex- potato |
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What is not part of the cell Theory?
a) all cells originate from other cells B) all living things are made up of cells C) all cells have a nucleus and a cell membrane |
C- all cells have a nucleus and cell membrane
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A life scientist who observes the relationships between plants, animals, weather, and soil on a mountaintop is studying what?
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an ecosystem
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what is not found in plants?
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lysosomes
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what contains cellulose?
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all plant cells
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which part of a cell manufactures lipids?
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endoplasmic reticulum
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What is not a characteristic of bacteria?
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they have and endoplasmic reticulum
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what are made up of various tissues that work together to perform a specific job?
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Organs
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What role is a cell is to release energy that can be used to power various cellular processes?
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Mitochondria
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Unlike animal cells plant cells have what that captures energy from the sun?
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Chloroplast
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DNA is the genetic material of a eukaryotic cells which is located where?
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In the Nucleus
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What are cells that have no membrane covered organelles called?
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Prokaryotic Cells
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A part of the Golgi Complex can pinch off and form What?
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A Lysosome
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What is the random movement of particles from an area of high concentration to an area of low concentration?
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Diffusion
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What do plants do to produce their own food?
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Photosynthesis
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How can food molecules that are too large to pass easily through a cell membrane enter the cell?
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Through Endocytosis
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Humans have 23 pairs of What?
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Homologous Chromosomes
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The process of cell division in a bacterial cell is called what?
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Binary Fission
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Food particles move through proteins in the cell membrane without using energy in a what process?
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Passive Transportation
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When wilted celery is soaked in water, it becomes crisp again due to what?
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Osmosis
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What does Fermentation in animal cells produce?
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Lactic acid and ATP
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Oxygen is used to break down food molecules and release energy in a process called what?
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Cellular respiration
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What is one of the products of photosynthesis?
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water
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Which of the following is not used to make glucose in photosynthesis?
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Oxygen
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What is a plant that produces offspring with the same traits as the parent?
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True-Breeding
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The physical expression of an organism`s genes is its What?
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Its Phenotype
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What does each parent donate to their offspring as a set of Instructions?
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Genes
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When Mendel performed genetic crosses, the traits that seemed to vanish were called What?
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Recessive Traits
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Eggs and sperm are forms of What?
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Sex Cells
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What may be dominant or recessive?
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Alleles
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If you cross two rabbits that have the genotype Bb how many possible genotypes can be found in the offspring?
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Three
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How many chromosomes are present in a normal human sex cell?
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23
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If a purple flower with the genotype Pp self pollinates the ration of the purple offspring to white offspring would be what?
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Three purple: one White
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Probability is What?
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The mathematical chance that an event will occur.
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Genes are composed of subunits known as What?
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Nucleotides
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Chargaff`s rules state that the amount of What in DNA is Always equal to the amount of guanine?
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Cytosine
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What allows scientists to transfer genes from one organism to another?
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Genetic Engineering
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What is a tool for tracing a genetic trait through generations of a family?
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A Pedigree
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Examples of Chemical What include asbestos and chemicals found in cigarette Smoke?
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Mutagens
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What is the code for a given amino acid consists of how many bases?
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Three
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What materials make up each nucleotide in a DNA molecule?
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sugar, a phosphate, and a base
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Most genetic disorders, such as sickle cell anemia, are due to What?
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a Recessive Gene
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The complementary strand to the DNA sequence TAGTCA is what?
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ATCAGT
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Which of the statements are false?
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The enviroment has no influence on a person`s traits
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Genetic Engineering is currently used to What?
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Genetically altered plants, Repair damaged genes, and manufacturing proteins
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What can cause sickle cell anemia?
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A Change in the order of bases in a person`s DNA
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A pine tree is a member of What Kingdom?
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Plantae
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Some members of the Kingdom Protista have What?
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A Flagella
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The seven levels of classification in order are What?
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Kingdom, Phylum, Class, Order, Family, Genus, Species
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What is Linnaeus known for?
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Founding the Science of taxonomy
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Organisms in What kingdom usually move by themselves and have advanced nervous systems?
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Animalea
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The Scientific name for the common house cat is Felis Domesticus. What is its species name?
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Domesticus
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Eubacteria does not do what?
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Live in hot springs
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How does fungi Obtain nutrients?
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By absorbing dead surrounding to get nutrients
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Members of What kingdom include organisms such as mold and mushrooms
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Fungi
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Orders of organisms are further broken down into What?
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Families
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Two organsims that are in the same calss will also be in the same What?
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Phylum
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Some organisms in What kingdom are able to live inside the human body?
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Eubacteria
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What are the two parts of a Scientific Name?
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Genus and Species
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Why do Scientists use Scientific Names for Organisms?
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so that everything is very clear for scientist around the world and there is no confusion
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What are the three types of mutation?
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Substitution, Insertion, and Deletion
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