Question 1

Rough endoplasmic reticulum is studded with ribosomes.

Accepted Answer

A) True 
 B)False

Question 2

In the condition called athlete's foot,the fungus Trichophyton consumes the keratin protein found in hair,nails,and dead skin.Which of the following descriptors does not apply to Trichophyton?

Accepted Answer

A)   Eukaryote
B)   Parasite
C)   Saprobe
D)   HeterotrophE) A) and B)
F) All of the above

Question 3

Algae are classified into divisions based principally on their type of motility.

Accepted Answer

A) True 
 B)False

Question 4

Select that statement that reflects evidence that directly supports the endosymbiotic theory.

Accepted Answer

A)   The electron transport system is located in the cell membrane in bacteria, while in eukaryotes it is located in the mitochondrial cristae.
B)   Enzymes for photosynthesis are found embedded in membranes of the Golgi apparatus.
C)   Lysosomes contain their own DNA in the form of plasmids.
D)   Glycolysis occurs in the cytoplasm of bacterial cells.E) All of the above
F) A) and B)

Question 5

All fungi cause some kind of disease in plants or animals.

Accepted Answer

A) True 
 B)False

Question 6

Protists include ______.

Accepted Answer

A)   yeasts and molds
B)   algae and protozoa
C)   helminths
D)   viruses
E)   bacteriaF) B) and E)
G) C) and D)

Question 7

Eukaryotic flagella differ from bacterial flagella because only eukaryotic flagella

Accepted Answer

A)   facilitate chemotaxis.
B)   are used for cell motility.
C)   are long, whip-like structures.
D)   contain microtubules.
E)   facilitate phototaxis.F) A) and C)
G) A) and D)

Question 8

Eating undercooked meat can lead to food-borne disease via helminthic infection.What is the common host for Taenia solium?

Accepted Answer

A)   Ducks
B)   Geese
C)   Cows
D)   Pigs
E)   ChickensF) B) and E)
G) A) and E) D

Question 9

In humans,fungi can only infect the skin.

Accepted Answer

A) True 
 B)False  False

Question 10

The motile,feeding stage of protozoa is called the ______.

Accepted Answer

A)   oocyst
B)   cyst
C)   sporozoite
D)   food vacuole
E)   trophozoiteF) A) and E)
G) A) and D)

Question 11

The eukaryotic cell organelle that most resembles a bacterial cell is the ______.

Accepted Answer

A)   lysosome
B)   Golgi apparatus
C)   ribosome
D)   nucleus
E)   mitochondrionF) A) and E)
G) A) and D)

Question 12

Most fungi obtain nutrients from dead plants and animals.These fungi are called ______.

Accepted Answer

A)   mutualistic
B)   saprobes
C)   free-living
D)   parasites
E)   antagonistsF) A) and E)
G) None of the above B

Question 13

The plasma cells of the immune system are responsible for secreting protein antibodies into the bloodstream.Within the plasma cell,the antibody moves through several organelles in what order?

Accepted Answer

A)   Ribosomes, Golgi apparatus, endoplasmic reticulum, lysosome
B)   Ribosomes, Golgi apparatus, endoplasmic reticulum, vesicles
C)   Ribosomes, endoplasmic reticulum, nucleolus, Golgi apparatus, vesicles
D)   Ribosomes, endoplasmic reticulum, Golgi apparatus, vesicles
E)   Ribosomes, vesicles, endoplasmic reticulum, Golgi apparatusF) A) and B)
G) A) and C)

Question 14

You are attempting to identify the type of helminth that has been isolated from a patient stool sample.The most important consideration to make this distinction is to

Accepted Answer

A)   examine the sample to see if microscopic eggs are present.
B)   ask the patient about recent food and water consumption.
C)   look at the gross anatomy to determine if the body is segmented or not.
D)   determine if the cells are eukaryotic or bacterial by looking for nuclei.E) B) and C)
F) All of the above

Question 15

Which organelle is found in algae but not in protozoa or fungi?

Accepted Answer

A)   Endoplasmic reticulum
B)   Chloroplasts
C)   Mitochondria
D)   Golgi apparatus
E)   LysosomesF) B) and E)
G) A) and D)

Question 16

The glycocalyx of a eukaryotic cell is

Accepted Answer

A)   mostly polysaccharides.
B)   also called the cell wall.
C)   composed of many diverse proteins.
D)   a protective mechanism against osmotic lysis.
E)   the site where many metabolic reactions occur.F) B) and E)
G) D) and E)

Question 17

In eukaryotic cells,which of the following organelles contain DNA?

Accepted Answer

A)   Nucleus, nucleolus, and Golgi apparatus
B)   Nucleus, chloroplast, and peroxisome
C)   Nucleus, mitochondria, and Golgi apparatus
D)   Nucleus, endoplasmic reticulum, and Golgi apparatus
E)   Nucleus, chloroplast, and mitochondrionF) None of the above
G) A) and D)

Question 18

A specimen from a patient suffering diarrhea shows a one-celled organism in the microscope.The organism moves very slowly by protruding its cytoplasm.You would predict that the patient has an infection caused by ______.

Accepted Answer

A)   Entamoeba
B)   Toxoplasma
C)   Plasmodium
D)   Trichomonas
E)   GiardiaF) A) and D)
G) B) and E)

Question 19

The cell membranes of bacteria and eukaryotes are quite similar,differing only in

Accepted Answer

A)   the presence of phospholipids.
B)   being selectively permeable.
C)   the ability to transport wastes out of the cell.
D)   the presence of sterols.
E)   the presence of proteins in the bilayer.F) A) and C)
G) A) and D)

Question 20

The eukaryotic cell membrane is a bilayer of sterols.

Accepted Answer

A) True 
 B)False

Exam 5: Eukaryotic Cells and Microorganisms

Rough endoplasmic reticulum is studded with ribosomes.

Correct AnswerverifiedShow Answer

In the condition called athlete's foot,the fungus Trichophyton consumes the keratin protein found in hair,nails,and dead skin.Which of the following descriptors does not apply to Trichophyton?

Correct AnswerverifiedShow Answer

Algae are classified into divisions based principally on their type of motility.

Correct AnswerverifiedShow Answer

Select that statement that reflects evidence that directly supports the endosymbiotic theory.

Correct AnswerverifiedShow Answer

All fungi cause some kind of disease in plants or animals.

Correct AnswerverifiedShow Answer

Protists include ______.

Correct AnswerverifiedShow Answer

Eukaryotic flagella differ from bacterial flagella because only eukaryotic flagella

Correct AnswerverifiedShow Answer

Eating undercooked meat can lead to food-borne disease via helminthic infection.What is the common host for Taenia solium?

Correct AnswerverifiedD

In humans,fungi can only infect the skin.

Correct AnswerverifiedFalse

The motile,feeding stage of protozoa is called the ______.

Correct AnswerverifiedShow Answer

The eukaryotic cell organelle that most resembles a bacterial cell is the ______.

Correct AnswerverifiedShow Answer

Most fungi obtain nutrients from dead plants and animals.These fungi are called ______.

Correct AnswerverifiedB

The plasma cells of the immune system are responsible for secreting protein antibodies into the bloodstream.Within the plasma cell,the antibody moves through several organelles in what order?

Correct AnswerverifiedShow Answer

You are attempting to identify the type of helminth that has been isolated from a patient stool sample.The most important consideration to make this distinction is to

Correct AnswerverifiedShow Answer

Which organelle is found in algae but not in protozoa or fungi?

Correct AnswerverifiedShow Answer

The glycocalyx of a eukaryotic cell is

Correct AnswerverifiedShow Answer

In eukaryotic cells,which of the following organelles contain DNA?

Correct AnswerverifiedShow Answer

A specimen from a patient suffering diarrhea shows a one-celled organism in the microscope.The organism moves very slowly by protruding its cytoplasm.You would predict that the patient has an infection caused by ______.

Correct AnswerverifiedShow Answer

The cell membranes of bacteria and eukaryotes are quite similar,differing only in

Correct AnswerverifiedShow Answer

The eukaryotic cell membrane is a bilayer of sterols.

Correct AnswerverifiedShow Answer

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D

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False

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B

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