Q: Which of the following equations best represents the complete oxidation of glucose in a prokaryotic cell?

$$\mathrm{C_6H_{12}O_6$} + 6\ \mathrm{O_2$} \rightarrow 6\ \mathrm{CO_2$} + 6\ \mathrm{H_2O} + \text{energy}$$

Question 1

Which process is defined as the addition of a high-energy phosphate from an intermediate molecule to ADP to form ATP?

Accepted Answer

High-energy phosphate from an intermediate molecule is added to ADP $$\rightarrow$$ ATP

Question 2

During the complete oxidation of one molecule of glucose in a prokaryotic cell, which step directly produces the most ATP via substrate-level phosphorylation?

Accepted Answer

Kreb’s Cycle

Question 3

What is the main function of the electron transport chain (ETC) in prokaryotic glucose oxidation?

Accepted Answer

To release energy as electrons are passed to oxygen through a series of cytochromes

Question 4

Which of the following best describes the process of glycolysis?

Accepted Answer

The conversion of glucose to pyruvic acid

Question 5

In the context of prokaryotic energy production, which process is responsible for the conversion of pyruvic acid to acetyl-CoA?

Accepted Answer

Intermediate step between glycolysis and Kreb’s cycle

Question 6

Which of the following statements about substrate-level phosphorylation is correct?

Accepted Answer

It involves the direct transfer of a phosphate group to ADP from an intermediate substrate

Question 7

A patient’s bacterial infection is found to be thriving in an anaerobic environment. Which process is most likely being used by these bacteria to generate ATP?

Accepted Answer

Fermentation

Question 8

Which of the following best describes oxidative phosphorylation?

Accepted Answer

Energy is released as electrons are passed to oxygen through a series of cytochromes in an ETC

Question 9

Which step in the complete oxidation of glucose is responsible for the production of the majority of NADH molecules?

Accepted Answer

Kreb’s Cycle

Question 10

A mutation disables the enzyme that catalyzes the addition of acetyl-CoA to oxaloacetic acid. Which metabolic process is directly affected?

Accepted Answer

Kreb’s Cycle

Question 11

If a prokaryotic cell is unable to perform oxidative phosphorylation, what is the maximum number of ATP molecules it can generate from one molecule of glucose?

Accepted Answer

4 ATP

Question 12

Which of the following equations best represents the complete oxidation of glucose in a prokaryotic cell?

Accepted Answer

$$\mathrm{C_6H_{12}O_6$} + 6\ \mathrm{O_2$} ightarrow 6\ \mathrm{CO_2$} + 6\ \mathrm{H_2O} + 	ext{energy}$$

Question 13

Which process is responsible for the release of energy from the breakdown of sugars to other organic end-products in the absence of O$$_2$$?

Accepted Answer

Fermentation

Question 14

A prokaryotic cell is exposed to a chemical that inhibits cytochrome function. Which process will be directly impaired?

Accepted Answer

Electron Transport Chain

Question 15

Which of the following is the correct sequence of metabolic steps for the complete oxidation of glucose in a prokaryotic cell?

Accepted Answer

Glycolysis $$\rightarrow$$ Intermediate Step $$\rightarrow$$ Kreb’s Cycle $$\rightarrow$$ Electron Transport Chain

Question 16

Which molecule is produced when acetyl-CoA combines with oxaloacetic acid in the Kreb’s cycle?

Accepted Answer

Citric acid

Question 17

If a prokaryotic cell is deprived of oxygen, which of the following processes will be directly halted?

Accepted Answer

Electron Transport Chain

Question 18

Which of the following best explains why prokaryotic cells can generate more ATP from glucose than eukaryotic cells?

Accepted Answer

Prokaryotes do not lose ATP transporting NADH into mitochondria

Question 19

A researcher measures the ATP yield from glucose metabolism in a prokaryotic cell and finds it to be 38 ATP per glucose. Which processes contribute to this total?

Accepted Answer

Substrate-level phosphorylation and oxidative phosphorylation

Question 20

Which of the following is NOT a product of the Kreb’s cycle?

Accepted Answer

Glucose

Step-by-Step Guidance: Complete Oxidation of Glucose in Prokaryotic Cells

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