Question 1

Endosymbiosis of cyanobacteria is widely accepted as an explanation for the development of chloroplasts.The presence of endosymbiotic cyanobacteria provided a cell with the advantage of ______.

Accepted Answer

A)  tolerance to oxygen
B)  photosynthesis
C)  an electron transport chain
D)  simple, rapid gene transfer
E)  a membrane-bound nucleusF) A) and B)
G) A) and E)

Question 2

During unfavorable growth conditions, many protozoa can convert to a resistant, dormant stage called a(n)  ______.

Accepted Answer

A)  seed
B)  trophozoite
C)  endospore
D)  cyst
E)  sporozoaF) A) and D)
G) A) and C)

Question 3

Larvae and eggs are developmental forms of ______.

Accepted Answer

A)  helminths
B)  protozoa
C)  fungi
D)  yeasts
E)  algaeF) C) and E)
G) A) and B)

Question 4

Biologists have found evidence that eukaryotic cells evolved from prokaryotic organisms by a process of intracellular ______.

Accepted Answer

A)  commensalism
B)  parasitism
C)  symbiosis
D)  mutualismE) B) and D)
F) A) and C)

Question 5

Fungi that grow as yeasts at one temperature but as molds at another temperature are called ______.

Accepted Answer

A)  pseudohyphae
B)  spores
C)  dimorphic
D)  parasites
E)  saprobesF) B) and E)
G) None of the above

Question 6

In eukaryotic cells, ribosomes have two locations.They are scattered in the ______ and on the surface of ______.

Accepted Answer

A)  nucleus; endoplasmic reticulum
B)  nucleus; Golgi apparatus
C)  cytoplasm; Golgi apparatus
D)  cytoplasm; endoplasmic reticulumE) B) and C)
F) B) and D)

Question 7

Parasitic helminths have a highly developed ______ system to enhance host transmission.

Accepted Answer

A)  muscular
B)  nervous
C)  digestive
D)  respiratory
E)  reproductiveF) A) and B)
G) A) and E)

Question 8

All algae have chloroplasts.

Accepted Answer

A) True 
 B)False

Question 9

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 B)
G) None of the above

Question 10

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) None of the above
F) A) and B)

Question 11

The cell walls of fungi and algae are chemically identical to the bacterial cell wall.

Accepted Answer

A) True 
 B)False

Question 12

The eukaryotic cell membrane is composed of ______.

Accepted Answer

A)  sterols
B)  proteins
C)  phospholipids
D)  sterols, proteins, and phospholipids
E)  sterols and phospholipids onlyF) None of the above
G) A) and B)

Question 13

The long, thread-like branching cells of molds are called ______.

Accepted Answer

A)  pseudohyphae
B)  asci
C)  conidiophores
D)  septa
E)  hyphaeF) A) and D)
G) C) and D)

Question 14

Plankton are floating communities of helminths.

Accepted Answer

A) True 
 B)False

Question 15

Cilia are exhibited by certain ______.

Accepted Answer

A)  fungi
B)  protozoa
C)  algae
D)  viruses
E)  bacteriaF) C) and E)
G) B) and D)

Question 16

The eukaryotic cell membrane is a bilayer of sterols.

Accepted Answer

A) True 
 B)False

Question 17

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

Accepted Answer

A) True 
 B)False

Question 18

There are no algae that can cause human disease.

Accepted Answer

A) True 
 B)False

Question 19

Protozoan cysts are

Accepted Answer

A)  analogous to bacterial endospores.
B)  part of all protozoan life cycles.
C)  the primary form of replication.
D)  necessary for transmission to a new host.
E)  are produced by binary fission.F) D) and E)
G) A) and B)

Question 20

Eukaryotic mitochondria have their own 70S ribosomes and circular DNA.

Accepted Answer

A) True 
 B)False

Exam 5: Eukaryotic Cells and Microorganisms

Eukaryotic mitochondria have their own 70S ribosomes and circular DNA.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Biologists have found evidence that eukaryotic cells evolved from prokaryotic organisms by a process of intracellular ______.

Correct AnswerverifiedShow Answer

During unfavorable growth conditions, many protozoa can convert to a resistant, dormant stage called a(n) ______.

Correct AnswerverifiedShow Answer

Endosymbiosis of cyanobacteria is widely accepted as an explanation for the development of chloroplasts.The presence of endosymbiotic cyanobacteria provided a cell with the advantage of ______.

Correct AnswerverifiedShow Answer

The cell walls of fungi and algae are chemically identical to the bacterial cell wall.

Correct AnswerverifiedShow Answer

Plankton are floating communities of helminths.

Correct AnswerverifiedShow Answer

Cilia are exhibited by certain ______.

Correct AnswerverifiedShow Answer

Larvae and eggs are developmental forms of ______.

Correct AnswerverifiedShow Answer

Eukaryotic flagella differ from bacterial flagella because only eukaryotic flagella

Correct AnswerverifiedShow Answer

All algae have chloroplasts.

Correct AnswerverifiedShow Answer

The eukaryotic cell membrane is a bilayer of sterols.

Correct AnswerverifiedShow Answer

The long, thread-like branching cells of molds are called ______.

Correct AnswerverifiedShow Answer

Protozoan cysts are

Correct AnswerverifiedShow Answer

There are no algae that can cause human disease.

Correct AnswerverifiedShow Answer

Fungi that grow as yeasts at one temperature but as molds at another temperature are called ______.

Correct AnswerverifiedShow Answer

In eukaryotic cells, ribosomes have two locations.They are scattered in the ______ and on the surface of ______.

Correct AnswerverifiedShow Answer

The eukaryotic cell membrane is composed of ______.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Parasitic helminths have a highly developed ______ system to enhance host transmission.

Correct AnswerverifiedShow Answer

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In eukaryotic cells, ribosomes have two locations.They are scattered in the and on the surface of .

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