biology Flashcards
organism that obtains food by consuming other living things; also called a consumer
heterotroph
which organelle is the location where protein is made?
ribosome
the basic unit of structure and function for the body
cell
two identical alleles for a trait is known as
homozygous
the arrows in the food chain represent what?
they show what direction the energy is flowing between organisms
during transcription, this type of ribonucleic acid is responsible for copying the DNA and bringing it out of the nucleus
mRNA
one molecule produced by animals during cellular respiration is
carbon dioxide
which of the following is a phenotype?
red hair
which of the following is the least complex level of organization?
atom
a beehive would be considered
nonliving
genetic info flows in one direction. which best represents this flow?
dna-rna-protein
which of the following is the correct equation for photosynthesis?
co2 + light + H20 = o2 + sugar
which of the following units are repeatedly joined together to form a strand of DNA?
nucleotides
a hawk eats a mouse that lived in an ecosystem where there is 10,000 kcals of energy in the insect population the mouse consumes. how much energy, in kcals, moves up to the trophic level the hawk is in?
100 kcals
which of the following organic compounds is the main source of energy for living things?
carbohydrates
sugar that is found in RNA
ribose
what elements should be found in protein?
carbon, hydrogen, nitrogen, oxygen
what is the purpose of the process of translation and where does it occur?
to produce a specific sequence of amino acids in the ribosomes
dominant alleles are
capital
Y for yellow body over y for blue body. what alleles would produce yellow bodies?
YY, Yy
lipids are also known as
fats
how many nucleotides make up a codon?
3
what organelle does photosynthesis?
chlorplast
which shows the correct complementary base pairing for DNA?
T-A, G-C
which trophic level has the most amount of energy?
producers
which of the following is not a requirement for all living things?
breathe oxygen with lungs
the main function of tRNA is to
bring amino acids to the ribosomes for protein production
which characteristic is shown: your body sweats to maintain body temperature
homeostasis
which of the following is a reactant to photosynthesis?
water
how does the body respond when more oxygen is required?
increasing heart rate
where does transcription take place?
nucleus
which of the following best describes how dna and RNA are similar?
they both have c and g
which of the following is the complementary mRNA sequence to this DNA strand: aactgaa
uugacuu
how is information for specific traits carried on the DNA molecules?
as a sequence of bases
a camel has eyelashes that work to keep the dust and sand out of its eyes
all living things adapt to their environment
which statement is true regarding cellular respiration?
the reactants of cellular respiration are obtained from the products of photosynthesis.
what is the monomer of nucleic acids?
nucleotide
how much energy is available to be passed on to the next trophic level in an ecosystem?
10%
what is the point of a feedback loop?
to make sure the conditions in the body remain stable
which sequence of complementary DNA bases would pair with this partial strand? atg tga cag
tac act gtc
cellular respiration is carried out by which of the following?
all living organisms
which characteristic is shown: an American alligator kills and eats a fish
acquire and use energy
TT, tt, PP, pp, SS, ss are examples of alleles that are?
homozygous
