BIL 150 MALLERY TEST 3 QUESTIONS
& ANSWERS
which of the following sequences best represents the flow of electrons during green
plant photosynthesis? - Correct Answers -H2O > PSII > ETC > PSI > NADPH
a flask containing photosynthetic green algae and a control flask containing water with
no algae are both placed under a bank of lights, which are set to cycle between 12
hours of light and 12 hours of dark. The dissolved oxygen concentrations in both flasks
are monitored. Predict what the relative dissolved oxygen concentrations will be in the
flask with algae compared to the control flask. - Correct Answers -the dissolved oxygen
in the flask with algae will be higher in the light, but lower in the dark
as a research scientist, you measure the amount of ATP and NADPH consumed by the
Calvin cycle in 1 hour. You find 30,000 molecules of ATP consumed, but only 20,000
molecules of NADPH. Where did the extra ATP molecules come from? - Correct
Answers -cyclic photophosphorylation electron flow
C4 plants and CAM (Crassuleacan Acid Metabolism) plants each lower the effects of
photorespiration by? - Correct Answers -storing CO2 in acid molecules as OAA
(oxaloacetate) that can be used at other times or in other cells
the enzyme(s) of carbon dioxide fixation (reduction) in photosynthesis in plants is (are)?
- Correct Answers -both ribulose-bisphosphate-carboxylase/oxygenase (Rubisco) and
PEP carboxylase (phosphoenol-pyruvate carboxylase)
TEST 4 - Correct Answers -TEST 4
a new drug, Serostat, blocks the formation of MPF (mitotic promoting factor) in cultured
HeLa cells. which of the following aspects of the reproduction of cells would most likely
be disrupted by Serostat? - Correct Answers -phosphorylation of proteins initiating
mitosis
a particular cell has twice the amount of DNA as that in the diploid amount for this
species. This particular cell is most likely? - Correct Answers -in G2 interphase
the decrease in the amount of MPF activity at the end of mitosis is due to? - Correct
Answers -the degradation of cyclin
, which of the following statements is most accurate concerning the protein cyclin? -
Correct Answers -it binds with a CDK (cyclin dependent kinase) forming active MPF
(mitotic promoting factor)
what stage of mitosis is depicted by the figure "C"? - Correct Answers -metaphase
meiosis II is similar to mitosis in that? - Correct Answers -sister chromatids separate
when homologous chromosome pairs during meiosis and allow crossover, which of the
following is likely to occur? - Correct Answers -two non-sister chromatids exchange
chromatid pieces
independent assortment of chromosomes results in the progeny all having an identical
combination of genetic traits in each of the progeny cells. - Correct Answers -false
sexual cell reproduction may be advantageous evolutionarily because? - Correct
Answers -it can provide genetic variability in heterogenous environments
Phenylketonuria (PKU) is a recessive human disorder in which an individual cannot
appropriately metabolize the essential amino acid PHE (phenylalanine). Thus an
efficient and effective treatment for PKU turns out to be which of the following? - Correct
Answers -regulating the diet of the affected persons to severely limit the uptake of PHE
an obstetrician knows that one of her patients is a pregnant woman, whose fetus is at
risk for a serious genetic disorder that is detectable biochemically in fetal cells. The
obstetrician would most reasonably offer which of the following procedures to her
patient? - Correct Answers -amniocentesis
many genes have more than just two differing alleles. Which of the following statements
is true of alleles? - Correct Answers -an individual will contain only two of all the
possible alleles for a gene
in corn plants, tall is dominant to short. If a heterozygous corn plant is crossed with a
homozygous tall plant, what is the probability that the offspring will be short? - Correct
Answers -0%
in the figure of a DNA helix below many transcription factors can bind to the major
groove of the DNA double helix. Which label best represents the major groove of this
DNA? - Correct Answers -B
which of the following prokaryotic DNA polymerases is responsible for removing the
RNA segments during the replication of DNA? - Correct Answers -DNA polymerase I
a promotor sequence in prokaryotic DNA, such as the TATA box (TATAAT), recognizes
which of the following? - Correct Answers -sigma factor of an RNA molymerase
& ANSWERS
which of the following sequences best represents the flow of electrons during green
plant photosynthesis? - Correct Answers -H2O > PSII > ETC > PSI > NADPH
a flask containing photosynthetic green algae and a control flask containing water with
no algae are both placed under a bank of lights, which are set to cycle between 12
hours of light and 12 hours of dark. The dissolved oxygen concentrations in both flasks
are monitored. Predict what the relative dissolved oxygen concentrations will be in the
flask with algae compared to the control flask. - Correct Answers -the dissolved oxygen
in the flask with algae will be higher in the light, but lower in the dark
as a research scientist, you measure the amount of ATP and NADPH consumed by the
Calvin cycle in 1 hour. You find 30,000 molecules of ATP consumed, but only 20,000
molecules of NADPH. Where did the extra ATP molecules come from? - Correct
Answers -cyclic photophosphorylation electron flow
C4 plants and CAM (Crassuleacan Acid Metabolism) plants each lower the effects of
photorespiration by? - Correct Answers -storing CO2 in acid molecules as OAA
(oxaloacetate) that can be used at other times or in other cells
the enzyme(s) of carbon dioxide fixation (reduction) in photosynthesis in plants is (are)?
- Correct Answers -both ribulose-bisphosphate-carboxylase/oxygenase (Rubisco) and
PEP carboxylase (phosphoenol-pyruvate carboxylase)
TEST 4 - Correct Answers -TEST 4
a new drug, Serostat, blocks the formation of MPF (mitotic promoting factor) in cultured
HeLa cells. which of the following aspects of the reproduction of cells would most likely
be disrupted by Serostat? - Correct Answers -phosphorylation of proteins initiating
mitosis
a particular cell has twice the amount of DNA as that in the diploid amount for this
species. This particular cell is most likely? - Correct Answers -in G2 interphase
the decrease in the amount of MPF activity at the end of mitosis is due to? - Correct
Answers -the degradation of cyclin
, which of the following statements is most accurate concerning the protein cyclin? -
Correct Answers -it binds with a CDK (cyclin dependent kinase) forming active MPF
(mitotic promoting factor)
what stage of mitosis is depicted by the figure "C"? - Correct Answers -metaphase
meiosis II is similar to mitosis in that? - Correct Answers -sister chromatids separate
when homologous chromosome pairs during meiosis and allow crossover, which of the
following is likely to occur? - Correct Answers -two non-sister chromatids exchange
chromatid pieces
independent assortment of chromosomes results in the progeny all having an identical
combination of genetic traits in each of the progeny cells. - Correct Answers -false
sexual cell reproduction may be advantageous evolutionarily because? - Correct
Answers -it can provide genetic variability in heterogenous environments
Phenylketonuria (PKU) is a recessive human disorder in which an individual cannot
appropriately metabolize the essential amino acid PHE (phenylalanine). Thus an
efficient and effective treatment for PKU turns out to be which of the following? - Correct
Answers -regulating the diet of the affected persons to severely limit the uptake of PHE
an obstetrician knows that one of her patients is a pregnant woman, whose fetus is at
risk for a serious genetic disorder that is detectable biochemically in fetal cells. The
obstetrician would most reasonably offer which of the following procedures to her
patient? - Correct Answers -amniocentesis
many genes have more than just two differing alleles. Which of the following statements
is true of alleles? - Correct Answers -an individual will contain only two of all the
possible alleles for a gene
in corn plants, tall is dominant to short. If a heterozygous corn plant is crossed with a
homozygous tall plant, what is the probability that the offspring will be short? - Correct
Answers -0%
in the figure of a DNA helix below many transcription factors can bind to the major
groove of the DNA double helix. Which label best represents the major groove of this
DNA? - Correct Answers -B
which of the following prokaryotic DNA polymerases is responsible for removing the
RNA segments during the replication of DNA? - Correct Answers -DNA polymerase I
a promotor sequence in prokaryotic DNA, such as the TATA box (TATAAT), recognizes
which of the following? - Correct Answers -sigma factor of an RNA molymerase
