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Protists with contractile vacuoles


A) are algae.
B) use them to expel excess water from the cell.
C) typically live in salty seawater.
D) use them for motility.
E) All of the choices are correct.

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

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The eukaryotic cell's glycocalyx is


A) mostly polysaccharide.
B) the site where many metabolic reactions occur.
C) also called the cell wall.
D) composed of many diverse proteins.
E) protection against osmotic lysis.

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

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The site for ribosomal RNA synthesis in eukaryotes is the


A) ribosome.
B) nucleolus.
C) nucleus.
D) golgi apparatus.
E) lysosome.

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

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The eukaryotic cell membrane is a bilayer of sterols.

A) True
B) False

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During unfavorable growth conditions, many protozoa can convert to a resistant, dormant stage called a _____.

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The passageways in the nuclear envelope for movement of substances to and from the nucleus and cytoplasm are called nuclear _____.

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

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cytoplasm,...

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Both fish and humans develop neurological symptoms and bloody skin lesions due to a sudden "bloom" of this algae.


A) Prototheca
B) Pfiesteria piscida
C) diatoms
D) Phaeophyta
E) All of the above.

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

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

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The organelle involved in intracellular digestion of food particles is the


A) Golgi apparatus.
B) lysosomes.
C) cisternae.
D) transitional vesicles.
E) smooth endoplasmic reticulum.

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

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In order to reproduce sexually, diploid cells must produce _________ gametes through ________.


A) diploid, mitosis
B) diploid, meiosis
C) haploid, mitosis
D) haploid, meiosis
E) triploid, mitosis

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

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There are nine peripheral pairs and one central pair of _____ found inside eukaryotic flagella and cilia.

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Compare and contrast the yeasts and molds with regard to: a) microscopic cellular morphology, b) macroscopic colony morphology, and c) reproduction.

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Answered by ExamLex AI

Answered by ExamLex AI

a) Microscopic cellular morphology:
Yeas...

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