BIL 150 Mallery 2021: Test3 Questions With Accurate Solutions Rated A+
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BIL 150 Mallery 2021:
which of the following sequences best represents the flow of electrons during green plant photosynthesis? - CORRECT ANSWER-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 l...
BIL 150 Mallery 2021: Test3 Questions
With Accurate Solutions Rated A+
which of the following sequences best represents the flow of electrons during green
plant photosynthesis? - CORRECT ANSWER-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 ANSWER-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
ANSWER-cyclic photophosphorylation electron flow
C4 plants and CAM (Crassuleacan Acid Metabolism) plants each lower the effects of
photorespiration by? - CORRECT ANSWER-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 ANSWER-both ribulose-bisphosphate-carboxylase/oxygenase (Rubisco)
and PEP carboxylase (phosphoenol-pyruvate carboxylase)
TEST 4 - CORRECT ANSWER-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 ANSWER-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 ANSWER-in G2 interphase
the decrease in the amount of MPF activity at the end of mitosis is due to? - CORRECT
ANSWER-the degradation of cyclin
which of the following statements is most accurate concerning the protein cyclin? -
CORRECT ANSWER-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 ANSWER-metaphase
meiosis II is similar to mitosis in that? - CORRECT ANSWER-sister chromatids
separate
when homologous chromosome pairs during meiosis and allow crossover, which of the
following is likely to occur? - CORRECT ANSWER-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 ANSWER-false
sexual cell reproduction may be advantageous evolutionarily because? - CORRECT
ANSWER-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 ANSWER-regulating the diet of the affected persons to severely limit the
uptake of PHE
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