Question 1

Bacterial protein synthesis can begin before the reading of the gene is complete.

Accepted Answer

A) True 
 B)False

Question 2

The processes illustrated in Figure 3-4 do not require energy input.

Accepted Answer

A) True 
 B)False

Question 3

Eukaryotic flagella are anchored by the basal body in the (cytoplasm/wall/membrane).

Accepted Answer

The answer of Eukaryotic flagella are anchored by the basal...

Question 4

Which of the following molecules would be expected to cross the cytoplasmic membrane rapidly and without the use of transport proteins?

Accepted Answer

A)   small hydrophilic molecules only
B)   ions only
C)   small hydrophobic molecules only
D)   large molecules only
E)   both ions and hydrophilic moleculesF) B) and D)
G) A) and C)

Question 5

What is the function of the cellular structure indicated by ʺcʺ in Figure 3-2?

Accepted Answer

A)   attach to surfaces only
B)   protect from dehydration only
C)   provide shape only
D)   attach to surfaces and protect from dehydration
E)   provide shape, attach to surfaces, and protect from dehydrationF) C) and E)
G) A) and E)

Question 6

What is the function of the cellular structure indicated by ʺnʺ in Figure 3-3?

Accepted Answer

A)   synthesis of lipids
B)   protein synthesis
C)   ATP synthesis
D)   cell movement
E)   packaging of materials for exportF) A) and C)
G) B) and C)

Question 7

Which of the following statements concerning prokaryotic flagella is TRUE?

Accepted Answer

A)   Prokaryotic flagella rotate like a drive shaft.
B)   Treponema is an example of a bacterium that has a tuft of polar flagella.
C)   Prokaryotic flagella are anchored in the cytoplasm.
D)   A ʺrunʺ results from clockwise movement of the flagellum.
E)   Prokaryotic flagella are composed of tubulin.F) B) and D)
G) B) and E)

Question 8

The lipids that are NOT generally components of cell membranes are

Accepted Answer

A)   fatty acids.
B)   phospholipids.
C)   sterols.
D)   triglycerides.
E)   hopanoids.F) C) and E)
G) A) and D)

Question 9

Which of the following statements is TRUE concerning the fluid mosaic model?

Accepted Answer

A)   The phospholipids rotate across the bilayer from one face to the other.
B)   Small water soluble molecules move freely across the bilayer.
C)   The phospholipids form a rigid structure.
D)   The integrated proteins are firmly cemented in place relative to each other.
E)   Membrane proteins are free to move in two dimensions in the bilayer.F) A) and E)
G) C) and D)

Question 10

The smooth endoplasmic reticulum is the site of (protein/lipid/carbohydrate) synthesis.

Accepted Answer

The answer of The smooth endoplasmic reticulum is the site...

Question 11

The accumulation of glucose 6-phosphate inside a bacterial cell via phosphorylation of glucose is an example of

Accepted Answer

A)   diffusion.
B)   facilitated diffusion.
C)   osmosis.
D)   group translocation.
E)   plasmolysis.F) B) and E)
G) A) and E)

Question 12

Which of the following statements concerning fimbriae is TRUE?

Accepted Answer

A)   Fimbriae facilitate the transfer of DNA among bacterial cells.
B)   All bacteria have fimbriae.
C)   A bacterial cell will usually have only one or two fimbriae.
D)   Fimbriae are about as long as flagella.
E)   Bacteria use fimbriae to attach to surfaces.F) B) and E)
G) B) and D)

Question 13

Enzymes which degrade toxic materials in eukaryotic cells are stored in (endosomes/lysosomes/peroxisomes).

Accepted Answer

The answer of Enzymes which degrade toxic materials in eukaryotic...

Question 14

ATP is expended in which of the following processes?

Accepted Answer

A)   diffusion
B)   facilitated diffusion
C)   active transport
D)   group translocation
E)   both active transport and group translocationF) A) and D)
G) A) and B)

Question 15

Which of the following is a function of the periplasmic space?

Accepted Answer

A)   external digestion of large biological molecules
B)   photosynthesis
C)   production of proteins for secretion
D)   protection from dehydration
E)   create a hydrogen ion gradient to power ATP synthesisF) A) and B)
G) A) and D)

Question 16

Cell walls composed of polysaccharide are found in

Accepted Answer

A)   archaea only.
B)   archaea and eukaryotes only.
C)   eukaryotes only.
D)   archaea, bacteria, and eukaryotes.
E)   bacteria only.F) A) and C)
G) B) and C)

Question 17

Lysosomes result from the endocytosis of food particles by eukaryotic cells.

Accepted Answer

A) True 
 B)False

Question 18

Eukaryotic cells use a process known as (endocytosis/pinocytosis/phagocytosis) to obtain liquids from their environment.

Accepted Answer

The answer of Eukaryotic cells use a process known as...

Question 19

The cells illustrated in Figure 3-1 are in a(n)  environment.

Accepted Answer

A)   hypertonic
B)   hypotonic
C)   passive
D)   isotonic
E)   fluid mosaicF) All of the above
G) A) and B)

Question 20

All cell membranes contain phospholipids and a wide variety of proteins.

Accepted Answer

A) True 
 B)False

Exam 3: Cell Structure and Function

The lipids that are NOT generally components of cell membranes are

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Eukaryotic flagella are anchored by the basal body in the (cytoplasm/wall/membrane).

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Bacterial protein synthesis can begin before the reading of the gene is complete.

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What is the function of the cellular structure indicated by ʺcʺ in Figure 3-2?

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Eukaryotic cells use a process known as (endocytosis/pinocytosis/phagocytosis) to obtain liquids from their environment.

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Cell walls composed of polysaccharide are found in

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Which of the following statements concerning fimbriae is TRUE?

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What is the function of the cellular structure indicated by ʺnʺ in Figure 3-3?

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Lysosomes result from the endocytosis of food particles by eukaryotic cells.

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Which of the following is a function of the periplasmic space?

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The processes illustrated in Figure 3-4 do not require energy input.

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Which of the following statements concerning prokaryotic flagella is TRUE?

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Enzymes which degrade toxic materials in eukaryotic cells are stored in (endosomes/lysosomes/peroxisomes).

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The cells illustrated in Figure 3-1 are in a(n) environment.

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Which of the following molecules would be expected to cross the cytoplasmic membrane rapidly and without the use of transport proteins?

Correct AnswerverifiedShow Answer

ATP is expended in which of the following processes?

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All cell membranes contain phospholipids and a wide variety of proteins.

Correct AnswerverifiedShow Answer

The smooth endoplasmic reticulum is the site of (protein/lipid/carbohydrate) synthesis.

Correct AnswerverifiedShow Answer

Which of the following statements is TRUE concerning the fluid mosaic model?

Correct AnswerverifiedShow Answer

The accumulation of glucose 6-phosphate inside a bacterial cell via phosphorylation of glucose is an example of

Correct AnswerverifiedShow Answer

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