Question 1

Eukaryotic cells

Accepted Answer

A) are more obviously compartmentalized than prokaryotes. 
B) usually have a single circular supercoiled piece of DNA. 
C) contain peptidoglycan in the cell wall. 
D) have the same size ribosomes as prokaryotes. 
E) usually have a single circular supercoiled piece of DNA AND contain peptidoglycan in the cell wall. 
A) are more obviously compartmentalized than prokaryotes. 
B) usually have a single circular supercoiled piece of DNA. 
C) contain peptidoglycan in the cell wall. 
D) have the same size ribosomes as prokaryotes. 
E) usually have a single circular supercoiled piece of DNA AND contain peptidoglycan in the cell wall.

Question 2

The order of reagents in the Gram stain reaction are

Accepted Answer

A) safranin, alcohol, methylene blue, iodine. 
B) crystal violet, iodine, alcohol, safranin. 
C) methylene blue, alcohol, safranin. 
D) crystal violet, alcohol, iodine, safranin. 
A) safranin, alcohol, methylene blue, iodine. 
B) crystal violet, iodine, alcohol, safranin. 
C) methylene blue, alcohol, safranin. 
D) crystal violet, alcohol, iodine, safranin.

Question 3

If everything else is equal, the best way to observe more details in a microscopic specimen is to

Accepted Answer

A) increase resolution. 
B) increase magnification. 
A) increase resolution. 
B) increase magnification.

Question 4

Which term(s) refer(s) to bacterial morphology?

Accepted Answer

A) Bacillus 
B) coccus 
C) bacillus 
D) polyhedral 
E) coccus AND bacillus 
A) Bacillus 
B) coccus 
C) bacillus 
D) polyhedral 
E) coccus AND bacillus

Question 5

The macromolecule found in the cell walls of all bacteria is

Accepted Answer

A) diaminopimelic acid. 
B) teichoic acid. 
C) peptidoglycan. 
D) glycocalyx. 
A) diaminopimelic acid. 
B) teichoic acid. 
C) peptidoglycan. 
D) glycocalyx.

Question 6

Which is(are) true concerning the cell wall of prokaryotes?

Accepted Answer

A) It determines the shape of the bacteria. 
B) It prevents the bacteria from bursting. 
C) It contains peptidoglycan. 
D) It may be targeted by antimicrobials. 
E) All of the choices are true. 
A) It determines the shape of the bacteria. 
B) It prevents the bacteria from bursting. 
C) It contains peptidoglycan. 
D) It may be targeted by antimicrobials. 
E) All of the choices are true.

Question 7

Peptidoglycan

Accepted Answer

A) may be digested by penicillin. 
B) consists of a long string of NAG coupled to a long string of NAM. 
C) may be digested by lysozyme. 
D) is used to construct a spheroplast. 
A) may be digested by penicillin. 
B) consists of a long string of NAG coupled to a long string of NAM. 
C) may be digested by lysozyme. 
D) is used to construct a spheroplast.

Question 8

An advantage of the smaller size of prokaryotes, compared to eukaryotes, is

Accepted Answer

A) high surface area relative to low cell volume. 
B) more rapid growth rates. 
C) compartmentalization of cellular processes in membrane-bound organelles. 
D) predators, parasites, and competitors constantly surround them. 
E) high surface area relative to low cell volume AND more rapid growth rates. 
A) high surface area relative to low cell volume. 
B) more rapid growth rates. 
C) compartmentalization of cellular processes in membrane-bound organelles. 
D) predators, parasites, and competitors constantly surround them. 
E) high surface area relative to low cell volume AND more rapid growth rates.

Question 9

Facilitated diffusion and active transport

Accepted Answer

A) both transport molecules into or out of a cell. 
B) are both not very specific as to which molecules are transported. 
C) both require a concentration gradient to function. 
D) both require an expenditure of energy in order to transport the molecules. 
E) both require a concentration gradient to function AND both require an expenditure of energy in order to transport the molecules. 
A) both transport molecules into or out of a cell. 
B) are both not very specific as to which molecules are transported. 
C) both require a concentration gradient to function. 
D) both require an expenditure of energy in order to transport the molecules. 
E) both require a concentration gradient to function AND both require an expenditure of energy in order to transport the molecules.

Question 10

Prokaryotes may ingest particles via phagocytosis.

Accepted Answer

A) True 
 B)False

Question 11

Capsules

Accepted Answer

A) take up stain well. 
B) may correlate with an organism's ability to cause disease. 
C) are typically "negatively" stained. 
D) are stained as a wet mount. 
E) may correlate with an organism's ability to cause disease, are typically "negatively" stained AND are stained as a wet mount. 
A) take up stain well. 
B) may correlate with an organism's ability to cause disease. 
C) are typically "negatively" stained. 
D) are stained as a wet mount. 
E) may correlate with an organism's ability to cause disease, are typically "negatively" stained AND are stained as a wet mount.

Question 12

Which amino acid(s) is/are found only in the cell walls of bacteria?

Accepted Answer

A) glycerol 
B) L-form of glycine 
C) diaminopimelic acid 
D) L-form of methionine 
E) L-form of glycine AND L-form of methionine 
A) glycerol 
B) L-form of glycine 
C) diaminopimelic acid 
D) L-form of methionine 
E) L-form of glycine AND L-form of methionine

Exam 3: Microscopy and Cell Structure

Eukaryotic cells

The order of reagents in the Gram stain reaction are

If everything else is equal, the best way to observe more details in a microscopic specimen is to

Which term(s) refer(s) to bacterial morphology?

The macromolecule found in the cell walls of all bacteria is

Which is(are) true concerning the cell wall of prokaryotes?

Peptidoglycan

An advantage of the smaller size of prokaryotes, compared to eukaryotes, is

Facilitated diffusion and active transport

Prokaryotes may ingest particles via phagocytosis.

Capsules

Which amino acid(s) is/are found only in the cell walls of bacteria?

Humans and the Microbial World

The Molecules of Life

Dynamics of Prokaryotic Growth

Control of Microbial Growth

Metabolism: Fueling Cell Growth

The Blueprint of Life, From Dna to Protein

Bacterial Genetics

Biotechnology and Recombinant Dna

Identification and Classification of Prokaryotes

The Diversity of Prokaryotic Organisms

The Eukaryotic Members of the Microbial World

Viruses, Viroids and Prions

The Innate Immune Response

The Adaptive Immune Response

Host-Microbe Interactions

Immunologic Disorders

Applications of Immune Responses

Epidemiology

Antimicrobial Medications

Respiratory System Infections

Skin Infections

Wound Infections

Digestive System Infections

Genitourinary Infections

Nervous System Infections

Blood and Lymphatic Infections

Hiv Disease and Complications of Immunodeficiency

Microbial Ecology

Environmental Microbiology: Treatment of Water, Wastes, and Polluted Habitats

Food Microbiology

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