Question 1

Which bacterial arrangement is shown in the first image (two spherical cells joined together)?

Accepted Answer

Diplococcus

Question 2

A chain of spherical bacteria, as seen in the second image, is best described as which arrangement?

Accepted Answer

Streptococcus

Question 3

The third image shows four cocci arranged in a square. What is this arrangement called?

Accepted Answer

Tetrad

Question 4

Which arrangement is depicted in the fourth image, where cocci are grouped in clusters of eight?

Accepted Answer

Sarcina

Question 5

The fifth and sixth images show clusters of cocci. What is the correct term for this arrangement?

Accepted Answer

Staphylococcus

Question 6

Which of the following best describes the arrangement of bacteria in the seventh image (random grape-like clusters)?

Accepted Answer

Staphylococcus

Question 7

The eighth image shows a cluster of oval-shaped bacteria. Which arrangement and shape does this most likely represent?

Accepted Answer

Staphylococcus

Question 8

The ninth image shows rod-shaped bacteria. What is the correct term for a single rod-shaped bacterium?

Accepted Answer

Bacillus

Question 9

The tenth image shows three types of spiral bacteria. Which of the following is NOT a spiral form?

Accepted Answer

Bacillus

Question 10

Which of the following best describes the arrangement of bacteria in the eleventh image (long, filamentous chains)?

Accepted Answer

Filamentous

Question 11

Which bacterial structure is responsible for selective permeability and contains proteins and hopanoids for stability?

Accepted Answer

Cytoplasmic membrane

Question 12

Which process is depicted in the images showing the division of a bacterial cell into two daughter cells?

Accepted Answer

Binary fission

Question 13

Which of the following is a function of the bacterial glycocalyx?

Accepted Answer

Resisting phagocytosis

Question 14

Which bacterial structure is composed of protein or glycoprotein and protects against enzymes and pH changes?

Accepted Answer

S-layer

Question 15

Which of the following best describes the function of bacterial ribosomes?

Accepted Answer

Protein synthesis

Question 16

Which process involves the net movement of water across a membrane from an area of higher water concentration to lower water concentration?

Accepted Answer

Osmosis

Question 17

Which type of transport protein moves two substances in the same direction across the membrane?

Accepted Answer

Symporter

Question 18

Which of the following is true about group translocation in bacteria?

Accepted Answer

It chemically modifies the substance during transport so it cannot diffuse back out.

Question 19

Which of the following best describes the function of bacterial endospores?

Accepted Answer

Dormant survival under harsh conditions

Question 20

Which of the following statements about plasmids is correct?

Accepted Answer

They often carry genes for antibiotic resistance.

Prokaryotic Cell Structure and Function: Bacteria

Study Guide - Practice Questions