Question 1

Which of the following best describes a fundamental difference between eukaryotic and prokaryotic cells?

Accepted Answer

Eukaryotic cells contain membrane-bound organelles, while prokaryotic cells do not.

Question 2

Which of the following kingdoms includes organisms that are primarily decomposers and have cell walls made of chitin?

Accepted Answer

Fungi

Question 3

A scientist observes a eukaryotic cell with abundant rough endoplasmic reticulum. What is the most likely function of this organelle in the cell?

Accepted Answer

Synthesis of proteins for export or membrane insertion

Question 4

Which of the following statements about the cell wall and cell membrane is correct?

Accepted Answer

Eukaryotic cell membranes contain sterols, while most prokaryotic membranes do not.

Question 5

Which of the following protists is most likely to move using pseudopodia?

Accepted Answer

Amoeba

Question 6

A patient is diagnosed with a helminth infection. Which of the following groups could be responsible for the infection?

Accepted Answer

Nematodes (roundworms)

Question 7

Why are protists, fungi, and worms studied in microbiology?

Accepted Answer

They can cause diseases in humans and have microscopic life stages.

Question 8

Which of the following is the best term to describe viruses?

Accepted Answer

Active or inactive

Question 9

A virus is observed to have a lipid envelope surrounding its capsid. Which of the following is true about this virus?

Accepted Answer

It is more susceptible to detergents and drying than naked viruses.

Question 10

Which of the following best describes the function of viral surface proteins (spikes)?

Accepted Answer

They mediate attachment to host cell receptors.

Question 11

During the bacteriophage life cycle, which step is unique to lysogenic infection compared to lytic infection?

Accepted Answer

Integration of phage DNA into the host genome

Question 12

Which of the following is a noncellular infectious agent besides viruses?

Accepted Answer

Prion

Question 13

A researcher is cultivating animal viruses in the laboratory. Which of the following methods is most appropriate for this purpose?

Accepted Answer

Using cell cultures derived from animal tissues

Question 14

Which of the following statements about the size of viruses is correct?

Accepted Answer

Viruses are generally smaller than bacteria and most eukaryotic cells.

Question 15

A patient presents with symptoms of malaria. Which group of protists is responsible for this disease?

Accepted Answer

Apicomplexans

Question 16

Which of the following best describes the function of mitochondria in eukaryotic cells?

Accepted Answer

Production of ATP via aerobic respiration

Question 17

A virus infects a bacterial cell and immediately begins producing new viral particles, leading to cell lysis. Which type of infection is this?

Accepted Answer

Lytic infection

Question 18

Which of the following equations best represents the process of aerobic respiration occurring in mitochondria?

Accepted Answer

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

Question 19

A patient is infected with a naked virus. Which of the following statements is most accurate regarding the stability of this virus?

Accepted Answer

It is more resistant to environmental stress than enveloped viruses.

Question 20

A scenario: A patient is diagnosed with a fungal infection. The physician prescribes a drug that targets the synthesis of chitin. Why is this drug effective?

Accepted Answer

Fungal cell walls contain chitin, which is not found in human cells.

Microbiology Exam 2 Review Guidance

Guida di studio - Domande di pratica

Study guide - Flashcard