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


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

E) All of the above
F) A) and B)

Correct Answer

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When fungal buds remain attached in a row following cell division, the resulting chains of yeast cells are called ______.


A) mycelia
B) molds
C) pseudohyphae
D) dimorphic
E) septa

F) B) and E)
G) D) and E)

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


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

E) C) and D)
F) A) and B)

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


A) antagonists
B) parasites
C) free-living
D) mutualistic
E) saprobes

F) All of the above
G) B) and E)

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You are observing an organism under the microscope and you note that it has a cell wall, no chloroplasts, and a nucleus. Your prediction would be that this organism is a/an ______.


A) virus
B) protozoan
C) bacterium
D) fungus
E) alga

F) B) and D)
G) C) and E)

Correct Answer

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Mitochondria possess all of the following except ______.


A) cristae
B) electron carriers
C) enzymes for photosynthesis
D) metabolic enzymes
E) 70S ribosomes

F) All of the above
G) A) and E)

Correct Answer

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Which of the following pairs is mismatched?


A) Algae; multicellular
B) Protozoa; multicellular
C) Fungi; multicellular
D) Helminths; multicellular
E) Protozoa; unicellular M. Fungi; unicellular

F) D) and E)
G) B) and E)

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


A) nucleus
B) mitochondrion
C) ribosome
D) lysosome
E) Golgi apparatus

F) A) and D)
G) C) and D)

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The glycocalyx of a eukaryotic cell is _______.


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

F) A) and C)
G) A) and E)

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Fungi can reproduce both sexually and asexually.

A) True
B) False

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After returning from a trip to Africa, Tom feels tired and weak and has severe anemia. A blood smear reveals a protozoan in his blood and the health care provider diagnoses malaria. Which of the following could be the causative agent of this disease?


A) HIV
B) Giardia lamblia
C) Plasmodium vivax
D) Trichophyton rubrum
E) Taenia solium

F) B) and E)
G) C) and E)

Correct Answer

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In humans, helminths generally infect the ______.


A) muscular system
B) gastrointestinal tract
C) urinary tract
D) nervous system
E) skin

F) C) and D)
G) A) and E)

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Which is not a characteristic of fungi?


A) Photosynthetic
B) Include single-cell and ?lamentous forms
C) Heterotrophic nutrition
D) Presence of cell walls

E) A) and B)
F) A) and C)

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

A) True
B) False

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Which of the following is not a function of the eukaryotic glycocalyx?


A) Reception of chemical signals
B) Adherence
C) Movement
D) Protection

E) B) and C)
F) All of the above

Correct Answer

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


A) Mitochondria
B) Golgi apparatus
C) Lysosomes
D) Endoplasmic reticulum
E) Chloroplasts

F) A) and B)
G) A) and C)

Correct Answer

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Protists include ______.


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

F) C) and D)
G) All of the above

Correct Answer

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

A) True
B) False

Correct Answer

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An organelle that is a stack of flattened, membranous sacs and functions to receive, modify, and package proteins for secretion is the ______.


A) mitochondrion
B) lysosome
C) chloroplast
D) endoplasmic reticulum
E) Golgi apparatus

F) A) and E)
G) A) and C)

Correct Answer

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


A) sporozoite
B) cyst
C) food vacuole
D) oocyst
E) trophozoite

F) C) and D)
G) A) and C)

Correct Answer

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