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luzan bio 2051 EXAM 2024 with Questions Solved 100% Correct | Verified Answers
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luzan bio 2051 EXAM 2024 with Questions Solved 100%Correct | Verified Answers
Which of the following structures enable a Bacterial or Archaeal cell to adjust its position in a
water column? - ✔✔gas vacuoles
Which of the following cell inclusions resides in the periplasm of gram-negative bacteria? -
✔✔sulfur globules
What is the most likely outcome when treating a suspension containing equal numbers of
bacterial and archaeal cells in a hypotonic solution with lysozyme? - ✔✔only the bacteria will
by lysed
Which of the following terms refers to a bacterium with a spherical shape? - ✔✔coccus
Which of the following is the best explanation for how membranes conserve energy? -
✔✔they develop proton motive force, which drives the acitivty of ATP synthase
Which of the following statements best describes how fimbriae and capsules differ from each
other? - ✔✔fimbriae are filamentous structures, whereas capsules are not
Which of the following attaches the outer membrane to peptidoglycan? - ✔✔lipoprotein
The small nonprotein molecules that are not substrates, are required for catalysis, and are only
loosely bound to enzymes are known as __________. - ✔✔coenzymes
The ability of a substance to become oxidized or reduced is known as its __________. -
✔✔reduction potential
, During glycolysis, the change in free energy is greatest in which of the following molecules? -
✔✔phosphoenolpyruvate
During carbohydrate metabolism, pyruvate kinase produces ATP via __________. -
✔✔substrate level phosphorylation
Lactic acid bacteria convert pyruvate to lactic acid via lactate dehydrogenase. Which of the
following statements is FALSE? - ✔✔the enzymatic reaction occurs under aerobic conditions
Which of the following molecules involved in electron transport has the most positive reduction
potential? - ✔✔cytochromes
Proton motive force generates an energized membrane where __________. - ✔✔h+
accumulates on the outside of the membrane and Oh- accumulates on the inside of the
membrane
In ATP synthase, what subunit(s) bind ADP + Pi to synthesize ATP? - ✔✔B subunit
Decarboxylation of α-ketoglutarate occurs by a series of multistep reactions. Which of the
following does this process NOT require? - ✔✔ATP
Decarboxylation of α-ketoglutarate occurs by a series of multistep reactions. What are
required? - ✔✔NAD+, isocitrate, and coenzyme A
What is the correct classification for a microorganism that can oxidize Fe2+ to produce energy?
- ✔✔chemolithotroph
Which of the following is NOT a function of the pentose phosphate pathway? - ✔✔to
provide additional ATP
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