Q: Which of the following equations correctly represents the general balanced equation for aerobic respiration?

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

Question 1

Which of the following best describes the difference between anabolism and catabolism in microbial metabolism?

Accepted Answer

Anabolism synthesizes complex molecules from simpler ones, requiring energy input, while catabolism breaks down complex molecules into simpler ones, releasing energy.

Question 2

Which of the following statements about enzymes is CORRECT?

Accepted Answer

Enzymes lower the activation energy of biochemical reactions.

Question 3

During aerobic respiration, what is the final hydrogen and electron acceptor?

Accepted Answer

Oxygen ($$\mathrm{O_2$})$$

Question 4

Which of the following equations correctly represents the general balanced equation for aerobic respiration?

Accepted Answer

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

Question 5

Where does glycolysis occur in a bacterial cell, and what is its primary function?

Accepted Answer

In the cytoplasm; to break down glucose into pyruvate and generate ATP

Question 6

How many ATP molecules are typically produced from each NADH generated in the Krebs cycle during aerobic respiration?

Accepted Answer

3 ATP

Question 7

Which of the following best describes the difference between fermentation and anaerobic respiration?

Accepted Answer

Fermentation uses an organic molecule as the final electron acceptor, while anaerobic respiration uses an inorganic molecule other than oxygen.

Question 8

Which of the following statements about DNA replication is TRUE?

Accepted Answer

DNA replication is semi-conservative, with each new double helix containing one parental and one new strand.

Question 9

Which of the following best defines a mutation?

Accepted Answer

A permanent change in the nucleotide sequence of DNA.

Question 10

Which of the following correctly matches the RNA type with its function?

Accepted Answer

rRNA: forms the core of the ribosome and catalyzes peptide bond formation

Question 11

During translation, what is the role of the anticodon?

Accepted Answer

It is a three-nucleotide sequence on tRNA that pairs with the codon on mRNA.

Question 12

Which of the following is an example of horizontal gene transfer in bacteria?

Accepted Answer

A bacterium acquiring a plasmid through conjugation.

Question 13

Which of the following terms refers to the complete genetic content of an organism?

Accepted Answer

Genome

Question 14

Which of the following is the most difficult type of microbe to eliminate using standard disinfection methods?

Accepted Answer

Bacterial endospores

Question 15

Which of the following best describes sterilization?

Accepted Answer

The destruction of all microbial life, including endospores.

Question 16

A hospital patient develops an infection after surgery that was not present at admission. This infection is best described as:

Accepted Answer

A nosocomial infection

Question 17

Which of the following is an example of a fomite in disease transmission?

Accepted Answer

A contaminated doorknob

Question 18

Which of the following is a correct statement about Koch’s Postulates?

Accepted Answer

They are used to establish a causal relationship between a microbe and a disease.

Question 19

A patient presents with fever and a rash. Which of the following is a sign, and which is a symptom?

Accepted Answer

Fever is a sign; rash is a sign.

Question 20

Which of the following best describes the difference between morbidity and mortality?

Accepted Answer

Morbidity refers to the number of cases of disease, while mortality refers to the number of deaths.

Microbial Metabolism, Genetics, Growth Control, and Pathogenesis Study Guide Unit 2

Study Guide - Practice Questions

Study Guide - Flashcards