Question 1

Which of the following best describes a eukaryotic microorganism?

Accepted Answer

An organism with a nucleus and membrane-bound organelles

Question 2

Which of the following is NOT a domain in the three-domain system of classification?

Accepted Answer

Fungi

Question 3

Which statement correctly distinguishes between prokaryotes and eukaryotes?

Accepted Answer

Eukaryotes have membrane-bound organelles, while prokaryotes do not.

Question 4

Which of the following is a correct example of a unicellular eukaryote?

Accepted Answer

Saccharomyces cerevisiae (yeast)

Question 5

Which process is used by bacteria to reproduce?

Accepted Answer

Binary fission

Question 6

Which of the following is NOT a characteristic of viruses?

Accepted Answer

They can reproduce independently

Question 7

Which macromolecule is most commonly found in the cell wall of bacteria?

Accepted Answer

Peptidoglycan

Question 8

Which of the following statements about archaea is TRUE?

Accepted Answer

Archaea are more closely related to eukaryotes than to bacteria.

Question 9

Which of the following is a correct description of the function of ribosomes?

Accepted Answer

Ribosomes are involved in protein synthesis.

Question 10

Which of the following is NOT a method used to differentiate viruses?

Accepted Answer

Biochemical tests

Question 11

Which of the following is a correct example of a multicellular eukaryote?

Accepted Answer

Mushroom

Question 12

Which of the following is a correct statement about the Gram stain?

Accepted Answer

Gram-positive bacteria have a thick peptidoglycan layer.

Question 13

Which of the following is NOT a reason why viruses are considered non-living?

Accepted Answer

They can reproduce outside a host cell

Question 14

Which of the following is a correct example of a prokaryotic cell?

Accepted Answer

Streptococcus pneumoniae

Question 15

Which of the following is a correct description of the function of the cell membrane?

Accepted Answer

It regulates the movement of substances in and out of the cell.

Question 16

Which of the following is NOT a characteristic used to classify microorganisms?

Accepted Answer

Color of the organism

Question 17

A scientist discovers a new microorganism that is unicellular, lacks a nucleus, and thrives in extreme heat. Which domain does this organism most likely belong to?

Accepted Answer

Archaea

Question 18

Which of the following is a correct example of a chemical characteristic used to classify microorganisms?

Accepted Answer

Presence of peptidoglycan in cell walls

Question 19

Which of the following is a correct description of the role of nucleic acids in viruses?

Accepted Answer

Nucleic acids store genetic information for replication.

Question 20

A patient presents with a fungal infection. Which of the following statements is TRUE regarding the causative organism?

Accepted Answer

It contains chitin in its cell wall.

Microbiology Exam Study Guide: Lecture 5

Study Guide - Practice Questions

Study Guide - Flashcards