Question 1

Which one of the following organisms has a cell wall?

Accepted Answer

A) protoplasts 
B) fungi 
C) L forms 
D) mycoplasmas 
E) animal cells 
A) protoplasts 
B) fungi 
C) L forms 
D) mycoplasmas 
E) animal cells B

Question 2

Which of the following statements is TRUE?

Accepted Answer

A) Endospores are for reproduction. 
B) Endospores allow a cell to survive environmental changes by producing a dormant period with no growth. 
C) Endospores are easily stained in a Gram stain. 
D) A cell produces one endospore and keeps growing. 
E) A cell can produce many endospores. 
A) Endospores are for reproduction. 
B) Endospores allow a cell to survive environmental changes by producing a dormant period with no growth. 
C) Endospores are easily stained in a Gram stain. 
D) A cell produces one endospore and keeps growing. 
E) A cell can produce many endospores. B

Question 3

Figure 4.1
  
-Which drawing in Figure 4.1 is a tetrad?

Accepted Answer

A) a 
B) b 
C) c 
D) d 
E) e 
A) a 
B) b 
C) c 
D) d 
E) e B

Question 4

Endospores are a reproductive structure.

Accepted Answer

A) True 
 B)False

Question 5

Compare and contrast gram-positive and gram-negative cell walls with regard to (a)sensitivity to antimicrobial agents,(b)resistance to phagocytosis,(c)chemical composition,and (d)decolorization by alcohol.

Accepted Answer

Gram-positive and gram-negative cell wal

Question 6

Figure 4.1
  
-Which drawing in Figure 4.1 possesses an axial filament?

Accepted Answer

A) a 
B) b 
C) c 
D) d 
E) e 
A) a 
B) b 
C) c 
D) d 
E) e

Question 7

Oxygen crosses a plasma membrane

Accepted Answer

A) by osmosis. 
B) through simple diffusion. 
C) with the help of a nonspecific transporter. 
D) through facilitated diffusion. 
E) through porins. 
A) by osmosis. 
B) through simple diffusion. 
C) with the help of a nonspecific transporter. 
D) through facilitated diffusion. 
E) through porins.

Question 8

Which of the following structures is NOT found in some prokaryotic cells?

Accepted Answer

A) flagellum 
B) axial filament 
C) cilium 
D) pilus 
E) peritrichous flagella 
A) flagellum 
B) axial filament 
C) cilium 
D) pilus 
E) peritrichous flagella

Question 9

Figure 4.3
  
-In Figure 4.3,which diagram of a cell wall is resistant to many antibiotics (e.g.,penicillin)?

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 10

Which of the following is NOT found or observed to occur in both mitochondria and prokaryotes?

Accepted Answer

A) circular chromosome 
B) 70S ribosomes 
C) cell wall 
D) binary fission 
E) ATP-generating mechanism 
A) circular chromosome 
B) 70S ribosomes 
C) cell wall 
D) binary fission 
E) ATP-generating mechanism

Question 11

Which structure protects bacteria from being phagocytized?

Accepted Answer

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

Question 12

In bacteria,photosynthetic pigments are found in

Accepted Answer

A) chloroplasts. 
B) cytoplasm. 
C) chromatophores. 
D) mesosomes. 
E) ribosomes. 
A) chloroplasts. 
B) cytoplasm. 
C) chromatophores. 
D) mesosomes. 
E) ribosomes.

Question 13

Which one of the following pairs is mismatched?

Accepted Answer

A) metachromatic granules - phosphate storage 
B) lipid inclusions - energy reserve 
C) ribosomes - carbon storage 
D) sulfur granules - energy reserve 
E) gas vacuoles - flotation 
A) metachromatic granules - phosphate storage 
B) lipid inclusions - energy reserve 
C) ribosomes - carbon storage 
D) sulfur granules - energy reserve 
E) gas vacuoles - flotation

Question 14

Which of the following statements is correct about passive diffusion?

Accepted Answer

A) It requires an expenditure of energy by the cell. 
B) It is a process in which molecules move from a region of higher concentration to a region of lower concentration (or down a concentration gradient). 
C) It is a process in which molecules move from a region of lower concentration to one of higher concentration (or up a concentration gradient). 
D) It may require a transport protein. 
E) It involves movement of molecules down a concentration gradient and may require a transport protein. 
A) It requires an expenditure of energy by the cell. 
B) It is a process in which molecules move from a region of higher concentration to a region of lower concentration (or down a concentration gradient). 
C) It is a process in which molecules move from a region of lower concentration to one of higher concentration (or up a concentration gradient). 
D) It may require a transport protein. 
E) It involves movement of molecules down a concentration gradient and may require a transport protein.

Question 15

What is a biofilm and what role does biofilm play in disease?

Accepted Answer

A biofilm is a complex aggregation of mi

Question 16

The internal structure of bacterial and eukaryotic flagella are the same.

Accepted Answer

A) True 
 B)False

Question 17

Bacteria are a commonly used organism for studies of genetic material in the research laboratory.The nucleic acids must first be isolated from the cells for these studies.Which of the following would most likely be used to remove the cell wall from gram-positive bacterial cells prior to their lysis for nucleic acid isolation?

Accepted Answer

A) lysozyme 
B) polymixins 
C) alcohol 
D) water 
E) mycolic acid 
A) lysozyme 
B) polymixins 
C) alcohol 
D) water 
E) mycolic acid

Question 18

Which of the following statements is INCORRECT regarding prokaryotic cells?

Accepted Answer

A) Their DNA is not enclosed within a membrane. 
B) They lack membrane-enclosed organelles. 
C) They typically have a circular chromosome. 
D) They reproduce by binary fission. 
E) They lack a plasma membrane. 
A) Their DNA is not enclosed within a membrane. 
B) They lack membrane-enclosed organelles. 
C) They typically have a circular chromosome. 
D) They reproduce by binary fission. 
E) They lack a plasma membrane.

Question 19

Cells may frequently find themselves in an environment with very low extracellular concentrations of substances needed in higher amounts inside the cell.To obtain these needed items,such cells would be most likely to engage in

Accepted Answer

A) simple diffusion. 
B) facilitated diffusion. 
C) active transport. 
D) osmosis. 
A) simple diffusion. 
B) facilitated diffusion. 
C) active transport. 
D) osmosis.

Question 20

Compare and contrast the characteristics of a typical prokaryotic and eukaryotic cell.

Accepted Answer

Prokaryotic and eukaryotic cells are two

Exam 4: Functional Anatomy of Prokaryotic and Eukaryotic

Which one of the following organisms has a cell wall?

Which of the following statements is TRUE?

Figure 4.1 -Which drawing in Figure 4.1 is a tetrad?

Endospores are a reproductive structure.

Compare and contrast gram-positive and gram-negative cell walls with regard to (a)sensitivity to antimicrobial agents,(b)resistance to phagocytosis,(c)chemical composition,and (d)decolorization by alcohol.

Figure 4.1 -Which drawing in Figure 4.1 possesses an axial filament?

Oxygen crosses a plasma membrane

Which of the following structures is NOT found in some prokaryotic cells?

Figure 4.3 -In Figure 4.3,which diagram of a cell wall is resistant to many antibiotics (e.g.,penicillin)?

Which of the following is NOT found or observed to occur in both mitochondria and prokaryotes?

Which structure protects bacteria from being phagocytized?

In bacteria,photosynthetic pigments are found in

Which one of the following pairs is mismatched?

Which of the following statements is correct about passive diffusion?

What is a biofilm and what role does biofilm play in disease?

The internal structure of bacterial and eukaryotic flagella are the same.

Which of the following statements is INCORRECT regarding prokaryotic cells?

Cells may frequently find themselves in an environment with very low extracellular concentrations of substances needed in higher amounts inside the cell.To obtain these needed items,such cells would be most likely to engage in

Compare and contrast the characteristics of a typical prokaryotic and eukaryotic cell.

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

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