Question 1

The most immediate result of destruction of a cell's ribosomes would be

Accepted Answer

A) material would not be able to cross the cell membrane. 
B) protein synthesis would stop. 
C) destruction of the cell's DNA. 
D) formation of glycogen inclusions. 
E) loss of capsule. 
A) material would not be able to cross the cell membrane. 
B) protein synthesis would stop. 
C) destruction of the cell's DNA. 
D) formation of glycogen inclusions. 
E) loss of capsule.

Question 2

If bacteria living in salty seawater were displaced to a freshwater environment,the cell structure that would prevent the cells from rupturing is the

Accepted Answer

A) endospore. 
B) cell wall. 
C) cell membrane. 
D) capsule. 
E) slime layer. 
A) endospore. 
B) cell wall. 
C) cell membrane. 
D) capsule. 
E) slime layer.

Question 3

The term that refers to the presence of a tuft of flagella emerging from the same site is

Accepted Answer

A) amphitrichous. 
B) atrichous. 
C) lophotrichous. 
D) monotrichous. 
E) peritrichous. 
A) amphitrichous. 
B) atrichous. 
C) lophotrichous. 
D) monotrichous. 
E) peritrichous.

Question 4

The cell _____ can be composed of three layers: the cell membrane,the cell wall,and the outer membrane.

Accepted Answer

A) glycocalyx 
B) envelope 
C) pathogenic package 
D) slime coat 
A) glycocalyx 
B) envelope 
C) pathogenic package 
D) slime coat

Question 5

The site/s for most ATP synthesis in prokaryotic cells is/are the

Accepted Answer

A) ribosomes. 
B) mitochondria. 
C) cell wall. 
D) inclusions. 
E) cell membrane. 
A) ribosomes. 
B) mitochondria. 
C) cell wall. 
D) inclusions. 
E) cell membrane.

Question 6

If you observe rod-shaped,pink cells on a slide that had just been Gram stained,you can assume that their cell envelope contains endotoxin.

Accepted Answer

A) True 
 B)False

Question 7

The difference in cell wall structure of Mycobacterium and Nocardia compared to the typical gram-positive bacterial cell wall structure is

Accepted Answer

A) more peptidoglycan. 
B) predominance of unique,waxy lipids. 
C) easily decolorized. 
D) presence of lipopolysaccharide. 
A) more peptidoglycan. 
B) predominance of unique,waxy lipids. 
C) easily decolorized. 
D) presence of lipopolysaccharide.

Question 8

If during the Gram stain procedure the bacterial cells were viewed immediately after crystal violet was applied,gram-positive cells would be purple but gram-negative cells would be colorless.

Accepted Answer

A) True 
 B)False

Question 9

Chemotaxis refers to the ability to

Accepted Answer

A) move in response to light. 
B) move in response to a chemical. 
C) not move in response to a chemical. 
D) transport desired molecules into a cell. 
A) move in response to light. 
B) move in response to a chemical. 
C) not move in response to a chemical. 
D) transport desired molecules into a cell.

Question 10

The term that refers to the presence of flagella all over the cell surface is

Accepted Answer

A) amphitrichous. 
B) atrichous. 
C) lophotrichous. 
D) monotrichous. 
E) peritrichous. 
A) amphitrichous. 
B) atrichous. 
C) lophotrichous. 
D) monotrichous. 
E) peritrichous.

Question 11

You have found a mutant of Streptococcus pneumoniae that has lost the ability to produce a capsule.If you inject this strain into a population of healthy mice,what prediction can you make about the consequences?

Accepted Answer

A) The mice will remain healthy. 
B) The mice will die of pneumonia. 
C) The mice will get a severe case pneumonia and recover. 
D) The infection in the mice will respond to antiviral medication. 
A) The mice will remain healthy. 
B) The mice will die of pneumonia. 
C) The mice will get a severe case pneumonia and recover. 
D) The infection in the mice will respond to antiviral medication.

Question 12

A bacterial cell exhibiting chemotaxis probably has

Accepted Answer

A) fimbriae. 
B) a capsule. 
C) thylakoids. 
D) flagella. 
E) metachromatic granules. 
A) fimbriae. 
B) a capsule. 
C) thylakoids. 
D) flagella. 
E) metachromatic granules.

Question 13

Which term is not used to describe bacterial cell shapes?

Accepted Answer

A) coccus 
B) tetrad 
C) vibrio 
D) bacillus 
E) spirochete 
A) coccus 
B) tetrad 
C) vibrio 
D) bacillus 
E) spirochete

Question 14

Prokaryotes include bacteria and viruses.

Accepted Answer

A) True 
 B)False

Question 15

Iodine is the decolorizer in the Gram stain.

Accepted Answer

A) True 
 B)False

Question 16

In which situation would a bacterium most likely have cytoplasmic inclusions?

Accepted Answer

A) producing endospores 
B) has a habitat abundant in a nutrient such as starch 
C) cell is starving for nutrients 
D) the cell is producing more flagella 
A) producing endospores 
B) has a habitat abundant in a nutrient such as starch 
C) cell is starving for nutrients 
D) the cell is producing more flagella

Question 17

Bacterial endospores are produced by

Accepted Answer

A) Staphylococcus. 
B) Entamoeba. 
C) Bacillus. 
D) Mycoplasma. 
A) Staphylococcus. 
B) Entamoeba. 
C) Bacillus. 
D) Mycoplasma.

Question 18

Spirochetes are able to move due to

Accepted Answer

A) a periplasmic flagellum. 
B) a membrane-bound flagellum. 
C) cilia serving as walking feet. 
D) pseudopods. 
E) glycocalyx for gliding motility. 
A) a periplasmic flagellum. 
B) a membrane-bound flagellum. 
C) cilia serving as walking feet. 
D) pseudopods. 
E) glycocalyx for gliding motility.

Question 19

The outcome of the Gram stain is based on differences in the cell's

Accepted Answer

A) ribosomes. 
B) inclusions. 
C) cell wall. 
D) cell membrane. 
E) flagella. 
A) ribosomes. 
B) inclusions. 
C) cell wall. 
D) cell membrane. 
E) flagella.

Question 20

Which structure protects bacteria from being phagocytized?

Accepted Answer

A) slime layer 
B) fimbriae 
C) cell membrane 
D) capsule 
A) slime layer 
B) fimbriae 
C) cell membrane 
D) capsule

Exam 4: Prokaryotic Profiles: The Bacteria and Archaea

The most immediate result of destruction of a cell's ribosomes would be

If bacteria living in salty seawater were displaced to a freshwater environment,the cell structure that would prevent the cells from rupturing is the

The term that refers to the presence of a tuft of flagella emerging from the same site is

The cell _____ can be composed of three layers: the cell membrane,the cell wall,and the outer membrane.

The site/s for most ATP synthesis in prokaryotic cells is/are the

If you observe rod-shaped,pink cells on a slide that had just been Gram stained,you can assume that their cell envelope contains endotoxin.

The difference in cell wall structure of Mycobacterium and Nocardia compared to the typical gram-positive bacterial cell wall structure is

If during the Gram stain procedure the bacterial cells were viewed immediately after crystal violet was applied,gram-positive cells would be purple but gram-negative cells would be colorless.

Chemotaxis refers to the ability to

The term that refers to the presence of flagella all over the cell surface is

You have found a mutant of Streptococcus pneumoniae that has lost the ability to produce a capsule.If you inject this strain into a population of healthy mice,what prediction can you make about the consequences?

A bacterial cell exhibiting chemotaxis probably has

Which term is not used to describe bacterial cell shapes?

Prokaryotes include bacteria and viruses.

Iodine is the decolorizer in the Gram stain.

In which situation would a bacterium most likely have cytoplasmic inclusions?

Bacterial endospores are produced by

Spirochetes are able to move due to

The outcome of the Gram stain is based on differences in the cell's

Which structure protects bacteria from being phagocytized?

The Main Themes of Microbiology

The Chemistry of Biology

Tools of the Laboratory: Methods for the Culturing of Microscopic Analysis of Microorganisms

Eukaryotic Cells and Microorganisms

An Introduction to the Viruses

Microbial Nutrition, Ecology, and Growth

Microbial Metabolism: the Chemical Crossroads of Life

Microbial Genetics

Genetic Engineering and Recombinant Dna

Physical and Chemical Control of Microbes

Drugs, Microbes, host-The Elements of Chemotherapy

Microbe-Human Interactions: Infection and Disease

Host Defenses I: Overview and Nonspecific Defenses

Host Defenses II: Specific Immunity and Immunization

Disorders in Immunity

Diagnosing Infections

Infectious Diseases Affecting the Skin and Eyes

Infectious Diseases Affecting the Nervous System

Infectious Diseases Affecting the Cardiovascular and Lymphatic Systems

Infectious Diseases Affecting the Respiratory System

Infectious Diseases Affecting the Gastrointestinal Tract

Infectious Diseases Affecting the Genitourinary System

Microbes and the Environment

Applied Microbiology and Food and Water Safety

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