1. The glycolysis pathway is active when cellular ATP levels are _________ . The

Question

1. The glycolysis pathway is active when cellular ATP levels are _________ . The enzyme phosphofructokinase is _________ by ATP.

Select one:

a. high, inhibited

b. low, activated

c. low, inhibited

d. high, activated

2. Several events of electron transport are shown below. Match each with the order in which it occurs. If the event is not part of electron transport, select "doesn't occur." Choose one.

a) NADH reduces a complex of proteins in the mitochondrial membrane (First, second, third, doesn't occur)

b) O2 is reduced to form H2O.   (First, second, third, doesn't occur)

c) A proton gradient is generated. (First, second, third, doesn't occur)

d) CO2 is generated.(First, second, third, doesn't occur)

3.

ATP is created by substrate-level phosphorylation in which of the following pathways? (select all that apply. There is a -0.5 point penalty for wrong answers.)

Select one or more:

a. Glycolysis

b. Electron transport

c. Light reaction of photosynthesis

d. Citric acid cycle

e. Calvin cycle

4.

Oligomycin is a toxin that kills cells by preventing facilitated diffusion by ATP synthase. In a cell treated with oligomycin the pH in the intermembrane space of the mitochondria would be HIGHER than in an untreated cell.

Select one:

True

False

5.

Cells store energy in several ways (listed below). check all of the energy storage forms that appear at some point during PHOTOSYNTHESIS (light reaction, calvin cycle).

Select one or more:

a. Excited electron

b. Reduced molecules

c. Recuded carbons (as in carbohydrates and fatty acids)

d. gradient

e. High energy bonds (i.e. Phosphate bonds)

6. For each of the events described below, indicate the order in which they occur during photosynthesis (light reaction and Calvin cycle). If any of the events are not part of photosynthesis select 'Doesn't occur'. (note: There are many more events in photosynthesis than are listed here.) Choose one.

a) RUBISCO catalyzes the formation of 3-phosphoglycerate. (first, second, third, fourth, doesn't occur)

b) A three carbon molecule is reduced. (first, second, third, fourth, doesn't occur)

c) Photosystem II becomes excited. (first, second, third, fourth, doesn't occur)

d) NADH and FADH2 are reduced. (first, second, third, fourth, doesn't occur)

e) CO2 is released. (first, second, third, fourth, doesn't occur)

f) A proton gradient is generated. (first, second, third, fourth, doesn't occur)

Explanation / Answer

1.c

2. order is ACB. The d option is -does not occur

3. a and d

4. true

We cannot answer so many questions in one post according to chegg rules

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