Question 1

Which of the following nutrients is NOT essential for microbial ATP production?

Accepted Answer

Vitamin C

Question 2

During catabolism, which process directly generates the most ATP in aerobic respiration?

Accepted Answer

Oxidative phosphorylation

Question 3

Which equation correctly represents the overall reaction for aerobic respiration of glucose?

Accepted Answer

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

Question 4

Which of the following best describes the role of NADH in cellular respiration?

Accepted Answer

It donates electrons to the electron transport chain.

Question 5

A mutation disables the enzyme ATP synthase in a bacterium. What is the most immediate effect?

Accepted Answer

ATP production via oxidative phosphorylation will cease.

Question 6

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

Accepted Answer

It directly transfers a phosphate group to ADP from a phosphorylated intermediate.

Question 7

Which process is responsible for the majority of ATP generated during aerobic respiration?

Accepted Answer

Electron transport chain and oxidative phosphorylation

Question 8

In the context of microbial metabolism, what is the main function of the electron transport chain?

Accepted Answer

To transfer electrons and pump protons to create a proton gradient

Question 9

Which of the following is a product of the citric acid cycle that is used in the electron transport chain?

Accepted Answer

NADH

Question 10

A patient is diagnosed with a mitochondrial disorder that impairs oxidative phosphorylation. Which symptom is most likely?

Accepted Answer

Excessive lactic acid buildup

Question 11

Which of the following best explains why fermentation is less efficient than aerobic respiration?

Accepted Answer

Fermentation does not utilize the electron transport chain.

Question 12

Which of the following is a correct representation of the Gibbs free energy change ($$\Delta G) $$for a spontaneous reaction?

Accepted Answer

$$\Delta G \u003c 0$$

Question 13

Which statement best describes the role of chemiosmosis in ATP synthesis?

Accepted Answer

It involves the movement of protons down their concentration gradient to drive ATP synthase.

Question 14

Which of the following is NOT a product of glycolysis?

Accepted Answer

Oxygen

Question 15

A virus enters a host cell by binding to a specific receptor and is then taken up via endocytosis. Which term best describes this entry mechanism?

Accepted Answer

Endocytic pathway

Question 16

Which of the following is a correct description of the Ebola virus replication cycle?

Accepted Answer

The virus binds to NPC1 in endosomes for entry.

Question 17

Which of the following symptoms is NOT typically associated with Ebola virus infection?

Accepted Answer

Rash

Question 18

Which of the following best explains the importance of universal precautions and PPE in controlling Ebola outbreaks?

Accepted Answer

They reduce the risk of transmission via body fluids.

Question 19

Which of the following is the correct year and location of the first recorded Ebola outbreak?

Accepted Answer

Africa, 1976

Question 20

Which of the following best describes the process of collision theory in enzyme-catalyzed reactions?

Accepted Answer

Enzymes increase the frequency of collisions containing enough energy to bring about a reaction.

Microbial Metabolism, Nutrients, and Viral Pathogenesis: Study Notes

Study Guide - Practice Questions