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207 Cards in this Set

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