Question 1

Figure 4.3
  
-In Figure 4.3,which diagram of a cell wall possesses lipid A/endotoxin responsible for symptoms associated with infection?

Accepted Answer

A) a 
B) b 
C) both a and b 
D) neither a nor b 
E) The answer cannot be determined based on the information provided. 
A) a 
B) b 
C) both a and b 
D) neither a nor b 
E) The answer cannot be determined based on the information provided.

Question 2

Which of the following statements best describes what happens when a bacterial cell is placed in a solution containing 5% NaCl?

Accepted Answer

A) Sucrose will move into the cell from a higher to a lower concentration. 
B) The cell will undergo osmotic lysis. 
C) Water will move out of the cell. 
D) Water will move into the cell. 
E) No change will result;the solution is isotonic. 
A) Sucrose will move into the cell from a higher to a lower concentration. 
B) The cell will undergo osmotic lysis. 
C) Water will move out of the cell. 
D) Water will move into the cell. 
E) No change will result;the solution is isotonic.

Question 3

Which of the following is NOT part of the passive transport process?

Accepted Answer

A) plasma membrane 
B) transporter proteins 
C) ATP 
D) concentration gradient 
E) aquaporins 
A) plasma membrane 
B) transporter proteins 
C) ATP 
D) concentration gradient 
E) aquaporins

Question 4

Based on the description of typical cell structures depicted in this chapter,do you think it is possible for microbial life on Mars to exist? Remember,the environment on Mars is very cold,and there is no appreciable free-flowing water.The core appears to be at least partially molten.Gravity is less than that on Earth,and solar radiation levels are higher.The atmosphere is roughly 95% carbon dioxide and much less than 1% oxygen.If life COULD exist,what might it look like,and why?

Accepted Answer

Based on the description of typical cell

Question 5

Which of the following is NOT a typical characteristic of most bacterial plasma membranes?

Accepted Answer

A) site of energy production 
B) composed of a phospholipid bilayer 
C) contains proteins 
D) contains cholesterol 
E) is selectively permeable 
A) site of energy production 
B) composed of a phospholipid bilayer 
C) contains proteins 
D) contains cholesterol 
E) is selectively permeable

Question 6

Figure 4.3
  
-In Figure 4.3,which diagram of a cell wall contains porins?

Accepted Answer

A) a 
B) b 
C) both a and b 
D) neither a nor b 
E) The answer cannot be determined based on the information provided. 
A) a 
B) b 
C) both a and b 
D) neither a nor b 
E) The answer cannot be determined based on the information provided.

Question 7

The difference between simple diffusion and facilitated diffusion is that facilitated diffusion

Accepted Answer

A) moves materials from a higher to a lower concentration. 
B) moves materials from a lower to a higher concentration. 
C) requires ATP. 
D) requires transporter proteins. 
E) does not require ATP. 
A) moves materials from a higher to a lower concentration. 
B) moves materials from a lower to a higher concentration. 
C) requires ATP. 
D) requires transporter proteins. 
E) does not require ATP.

Question 8

Many enzymes in both prokaryotic and eukaryotic cells are compartmentalized within organelles.

Accepted Answer

A) True 
 B)False

Question 9

Which of the following are NOT energy reserves?

Accepted Answer

A) carboxysomes 
B) polysaccharide granules 
C) lipid inclusions 
D) ribosomes 
E) metachromatic granules 
A) carboxysomes 
B) polysaccharide granules 
C) lipid inclusions 
D) ribosomes 
E) metachromatic granules

Question 10

Each of the following statements concerning the gram-positive cell wall is true EXCEPT

Accepted Answer

A) it maintains the shape of the cell. 
B) it is sensitive to lysozyme. 
C) it protects the cell in a hypertonic environment. 
D) it contains teichoic acids. 
E) it is sensitive to penicillin. 
A) it maintains the shape of the cell. 
B) it is sensitive to lysozyme. 
C) it protects the cell in a hypertonic environment. 
D) it contains teichoic acids. 
E) it is sensitive to penicillin.

Question 11

Endospores are highly resistant to harsh environmental conditions due to all EXCEPT which one of the following?

Accepted Answer

A) dipicolinic acid (DP
A) in the endospore 
B) very low amounts of water 
C) high concentration of calcium ions 
D) a thick spore coat 
E) small triggering molecules called germinants 
A) dipicolinic acid (DP
A) in the endospore 
B) very low amounts of water 
C) high concentration of calcium ions 
D) a thick spore coat 
E) small triggering molecules called germinants

Question 12

You have isolated a motile,gram-positive cell with no visible nucleus.You can safely assume that the cell

Accepted Answer

A) has 9 pairs + 2 flagella. 
B) has a mitochondrion. 
C) has a cell wall. 
D) lives in an extreme environment. 
E) has cilia. 
A) has 9 pairs + 2 flagella. 
B) has a mitochondrion. 
C) has a cell wall. 
D) lives in an extreme environment. 
E) has cilia.

Question 13

Antibiotics that target the cell wall are an effective treatment against many pathogenic bacteria.

Accepted Answer

A) True 
 B)False

Question 14

In a hypertonic solution,a bacterial cell will typically

Accepted Answer

A) lyse. 
B) burst. 
C) stay the same. 
D) plasmolyze. 
E) osmolyze. 
A) lyse. 
B) burst. 
C) stay the same. 
D) plasmolyze. 
E) osmolyze.

Question 15

Where are phospholipids most likely found in a eukaryotic cell?

Accepted Answer

A) metachromatic granules 
B) organelles 
C) the plasma membrane 
D) ribosomes 
E) the plasma membrane and organelles 
A) metachromatic granules 
B) organelles 
C) the plasma membrane 
D) ribosomes 
E) the plasma membrane and organelles

Question 16

By which of the following mechanisms can a cell transport a substance from a lower to a higher concentration?

Accepted Answer

A) simple diffusion 
B) facilitated diffusion 
C) active transport 
D) extracellular enzymes 
E) aquaporins 
A) simple diffusion 
B) facilitated diffusion 
C) active transport 
D) extracellular enzymes 
E) aquaporins

Question 17

Figure 4.3
  
-In Figure 4.3,which diagram of a cell wall is a gram-negative cell wall?

Accepted Answer

A) a 
B) b 
C) both a and b 
D) neither a nor b 
E) The answer cannot be determined based on the information provided. 
A) a 
B) b 
C) both a and b 
D) neither a nor b 
E) The answer cannot be determined based on the information provided.

Question 18

A particular type of inclusion body that is used to orient bacteria in three-dimensional space in a fluid environment is the

Accepted Answer

A) gas vacuole. 
B) carboxysome. 
C) sulfur granule. 
D) metachromatic granule. 
A) gas vacuole. 
B) carboxysome. 
C) sulfur granule. 
D) metachromatic granule.

Question 19

Fimbriae and pili differ in that

Accepted Answer

A) there are only one or two pili per cell. 
B) pili are used for motility. 
C) pili are used to transfer DNA. 
D) pili are used for transfer of DNA and motility. 
E) pili are used for attachment to surfaces. 
A) there are only one or two pili per cell. 
B) pili are used for motility. 
C) pili are used to transfer DNA. 
D) pili are used for transfer of DNA and motility. 
E) pili are used for attachment to surfaces.

Question 20

The DNA found in most bacterial cells

Accepted Answer

A) is surrounded by a nuclear membrane. 
B) utilizes histones for chromosomal packaging. 
C) is circular in structure. 
D) is linear in structure. 
E) is found in multiple copies. 
A) is surrounded by a nuclear membrane. 
B) utilizes histones for chromosomal packaging. 
C) is circular in structure. 
D) is linear in structure. 
E) is found in multiple copies.

Exam 4: Functional Anatomy of Prokaryotic and Eukaryotic

Figure 4.3 -In Figure 4.3,which diagram of a cell wall possesses lipid A/endotoxin responsible for symptoms associated with infection?

Which of the following statements best describes what happens when a bacterial cell is placed in a solution containing 5% NaCl?

Which of the following is NOT part of the passive transport process?

Which of the following is NOT a typical characteristic of most bacterial plasma membranes?

Figure 4.3 -In Figure 4.3,which diagram of a cell wall contains porins?

The difference between simple diffusion and facilitated diffusion is that facilitated diffusion

Many enzymes in both prokaryotic and eukaryotic cells are compartmentalized within organelles.

Which of the following are NOT energy reserves?

Each of the following statements concerning the gram-positive cell wall is true EXCEPT

Endospores are highly resistant to harsh environmental conditions due to all EXCEPT which one of the following?

You have isolated a motile,gram-positive cell with no visible nucleus.You can safely assume that the cell

Antibiotics that target the cell wall are an effective treatment against many pathogenic bacteria.

In a hypertonic solution,a bacterial cell will typically

Where are phospholipids most likely found in a eukaryotic cell?

By which of the following mechanisms can a cell transport a substance from a lower to a higher concentration?

Figure 4.3 -In Figure 4.3,which diagram of a cell wall is a gram-negative cell wall?

A particular type of inclusion body that is used to orient bacteria in three-dimensional space in a fluid environment is the

Fimbriae and pili differ in that

The DNA found in most bacterial cells

The Microbial World and You

Chemical Principles

Observing Microorganisms Through a Microscope

Microbial Metabolism

Microbial Growth

The Control of Microbial Growth

Microbial Genetics

Biotechnology and Dna Technology

Classification of Microorganisms

The Prokaryotes: Domains Bacteria and Archaea

The Eukaryotes: Fungi, algae, protozoa, and Helminths

Viruses,viroids,and Prions

Principles of Disease and Epidemiology

Microbial Mechanisms of Pathogenicity

Innate Immunity: Nonspecific Defenses of the Host

Adaptive Immunity: Specific Defenses of the Host

Practical Applications of Immunology

Disorders Associated With the Immune System

Antimicrobial Drugs

Microbial Diseases of the Skin and Eyes

Microbial Diseases of the Nervous System

Microbial Diseases of the Cardiovascular and Lymphatic Systems

Microbial Diseases of the Respiratory System

Microbial Diseases of the Digestive System

Microbial Diseases of the Urinary and Reproductive Systems

Environmental Microbiology

Applied and Industrial Microbiology

Filters