ANSWERS RATED A+
✔✔By which of the following mechanisms can a cell transport a substance from a
higher to a lower concentration? - ✔✔Passive transport
✔✔The structure of the plasma membrane - ✔✔is similar in a prokaryotic and
eukaryotic cells
✔✔By which of the following mechanisms can a cell transport a substance from a lower
to a higher concentration? - ✔✔Active transport
✔✔Which of the following pairs is NOT functionally analogous? - ✔✔Cilia-Pili
✔✔Which of the following is a characteristic of eukaryotic cytoplasm? - ✔✔Cytoskeleton
✔✔Which of the following compounds is NOT an enzyme? - ✔✔Coenzyme A
✔✔What happens to a molecule when it is reduced? - ✔✔It gains an electron
✔✔Which compound is being reduced in the reaction shown in Figure 5.1? - ✔✔NAD+
✔✔How would a noncompetitive inhibitor interfere with a reaction involving the enzyme
shown in Figure 5.3? - ✔✔It would bind to B
✔✔How would a competitive inhibitor interfere with a reaction involving the enzyme
shown in Figure 5.3 - ✔✔It would bind to A
✔✔Which of the graphs in Figure 5.5 best illustrates the activity of an enzyme that is
saturated with substrate? - ✔✔C
✔✔If an enzyme is functioning at its optimum temperature how would the enzymes
activity change if the temperature is increased? - ✔✔Enzyme activity would increase
✔✔If an enzyme is functioning above its optimum temperature how would the enzymes
activity change if the temperature is decreased? - ✔✔Enzyme activity would increase
✔✔If an enzyme is functioning at its optimum pH how would the enzymes activity
change if the pH is decreased? - ✔✔ENZYME activity would decrease.
✔✔If an enzyme is functioning below its optimum pH how would the enzymes activity
change if the pH is increased? - ✔✔Enzyme activity would increase
, ✔✔The heat generated by metabolic reactions can: - ✔✔cause damage to the cell if
metabolism is not controlled.
✔✔Non-competitive inhibitors can regulate metabolic pathways by - ✔✔acting as an
"on/off" switch.
✔✔An enzyme, glucose oxidoreductase: - ✔✔Catalyses oxidation/reduction reactions
involving glucose.
✔✔How many molecules of ATP can be generated from the complete oxidation of
glucose by aerobic respiration? - ✔✔38
✔✔A strictly fermentative bacterium produces energy - ✔✔By glycolysis only
✔✔Which of the following statement regarding metabolism is FALSE? - ✔✔Anabolic
reactions are degradative
✔✔What is the fate of Pyruvic acid in an organism that uses aerobic respiration? - ✔✔It
is oxidized in the Krebs cycle.
✔✔Which of the following is NOT an end-product of fermentation? - ✔✔Pyruvic acid
✔✔How is ATP generated in the reaction in Figure 5.4? - ✔✔Substrate-level
phosphorylation
✔✔Aerobic respiration differs from anaerobic respiration in which of the following
respects? - ✔✔The final electron acceptors are different.
✔✔Which of the following is not true about anaerobic respiration? - ✔✔It involves
glycolysis only.
✔✔In figure 5.8 is a diagrammatic representation of the electron transport chain, how is
ATP produced here? - ✔✔Oxidative phosphorylation
✔✔Refer to figure 5.8 in a prokaryotic cell what is the structure labeled 1 - ✔✔plasma
membrane
✔✔Refer to figure 5.8 in a eukaryotic cell what the structure labeled 1? - ✔✔inner
membrane of the mitochondrion.
✔✔Which of the following is NOT necessary for respiration? - ✔✔oxygen