Question 1

What cell type would have many Golgi apparatus?

Accepted Answer

A)  liver cells that detoxify hydrogen peroxide
B)  mucus cell (secretes mucus) 
C)  fibroblast (makes protein fibers) 
D)  cardiac muscle cells (require large amounts of ATP) 
E)  white blood cell,a phagocyteF) A) and D)
G) B) and E)

Question 2

What is membrane potential?

Accepted Answer

A)   The rate of ATP production and transport by mitochondria.
B)   The ability of a membrane to actively transport carbohydrates out of the cytoplasm.
C)   The electrical charge difference across the membrane caused by ion movement.
D)   The ability of molecules to pass through the nuclear membrane.E) All of the above
F) B) and D)

Question 3

Membrane-bound receptors

Accepted Answer

A)  are small,lipid soluble molecules.
B)  have no effect on the cell.
C)  do not exhibit specificity.
D)  have their receptor sites on the outer surface of the plasma membrane.
E)  can interact with DNA in the nucleus.F) A) and C)
G) A) and B)

Question 4

The bulk uptake of material by the formation of a vesicle is called

Accepted Answer

A)  osmosis.
B)  facilitated diffusion.
C)  diffusion.
D)  active transport.
E)  endocytosis.F) C) and E)
G) A) and C)

Question 5

The sacs containing hydrolytic enzymes are called

Accepted Answer

A)  lysosomes.
B)  mitochondria.
C)  centrioles.
D)  ribosomes.
E)  nucleus.F) A) and B)
G) B) and D)

Question 6

The movement of molecules against their concentration gradient is called

Accepted Answer

A)  facilitated diffusion.
B)  active transport.
C)  diffusion.
D)  endocytosis.
E)  osmosis.F) C) and D)
G) A) and C)

Question 7

Cytoplasm is found

Accepted Answer

A)  in the nucleus.
B)  outside the nucleus but inside the plasma membrane.
C)  in the cisternae of the endoplasmic reticulum.
D)  on the cristae of the mitochondria.
E)  between the phospholipids in the plasma membrane.F) B) and C)
G) None of the above

Question 8

Molecules that serve as chemical signals to open or close gated ion channels are

Accepted Answer

A)  responders.
B)  ligands.
C)  isotopes.
D)  communicators.
E)  membrane potentials.F) A) and C)
G) C) and E)

Question 9

The "control center" of the cell is the

Accepted Answer

A)  endoplasmic reticulum.
B)  mitochondrion.
C)  nucleus.
D)  plasma membrane.
E)  ribosome.F) A) and E)
G) A) and C)

Question 10

The structural RNA of ribosomes is a

Accepted Answer

A)  proenzyme.
B)  gene.
C)  codon.
D)  pre-mRNA.
E)  ribosomal RNA (rRN
A)  .F) B) and E)
G) A) and E)

Question 11

A red blood cell that is placed in a hypertonic solution

Accepted Answer

A)  loses water.
B)  gains water.
C)  floats.
D)  ruptures.
E)  neither gains nor loses water.F) A) and B)
G) A) and C)

Question 12

In general,water-soluble molecules diffuse through the ______ ______; and lipid-soluble molecules diffuse through the ______ ______.

Accepted Answer

A)  membrane channels; membrane channels
B)  membrane channels; lipid bilayer
C)  lipid bilayer; membrane channels
D)  lipid bilayer; lipid bilayer
E)  None of these choices is correct.F) B) and E)
G) B) and D)

Question 13

What type of attachment proteins attach cells to extracellular molecules?

Accepted Answer

A)  ligands
B)  adherins
C)  cadherins
D)  integrinsE) All of the above
F) C) and D)

Question 14

What type of membrane proteins are integral proteins that move ions or molecules across plasma membrane?

Accepted Answer

A)  carrier proteins
B)  receptor proteins
C)  enzymes
D)  marker molecules
E)  channel proteinF) B) and E)
G) D) and E)

Question 15

What term dealing with cancer means "spreading to a new site"?

Accepted Answer

A)  malignant
B)  carcinoma
C)  metastasis
D)  benign
E)  sarcomaF) A) and B)
G) A) and C)

Question 16

What type of membrane proteins allow cells to identify one another?

Accepted Answer

A)  enzymes
B)  carrier proteins
C)  channel protein
D)  receptor proteins
E)  marker moleculesF) B) and C)
G) B) and D)

Question 17

The leading strand of DNA is formed as

Accepted Answer

A)  soon as the lagging strand is formed.
B)  a continuous strand,adding to the 5´ end.
C)  a continuous strand,adding to the 3´ end.
D)  a template.
E)  short segments called Okazaki fragments.F) A) and B)
G) C) and D)

Question 18

What organelles produce most of the cell's energy?

Accepted Answer

A)  nucleus
B)  lysosomes
C)  centrioles
D)  mitochondria
E)  ribosomesF) All of the above
G) A) and B)

Question 19

When a person trains for running long distances,which of the following organelles increase in his/her muscles?

Accepted Answer

A)  mitochondria
B)  lysosomes
C)  enzymes for glycolysis
D)  basal bodies
E)  rough endoplasmic reticulumF) A) and E)
G) A) and D)

Question 20

-Answer these questions about chromosome structure.What does "C" represent?

Accepted Answer

A)  chromosome
B)  proteins
C)  chromatid
D)  chromatin
E)  centromereF) All of the above
G) A) and C)

Exam 3: Cell Biology

What organelles produce most of the cell's energy?

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What is membrane potential?

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What type of attachment proteins attach cells to extracellular molecules?

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When a person trains for running long distances,which of the following organelles increase in his/her muscles?

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The leading strand of DNA is formed as

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What term dealing with cancer means "spreading to a new site"?

Correct AnswerverifiedShow Answer

In general,water-soluble molecules diffuse through the ______ ______; and lipid-soluble molecules diffuse through the ______ ______.

Correct AnswerverifiedShow Answer

The sacs containing hydrolytic enzymes are called

Correct AnswerverifiedShow Answer

The movement of molecules against their concentration gradient is called

Correct AnswerverifiedShow Answer

What type of membrane proteins are integral proteins that move ions or molecules across plasma membrane?

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-Answer these questions about chromosome structure.What does "C" represent?

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The bulk uptake of material by the formation of a vesicle is called

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Membrane-bound receptors

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A red blood cell that is placed in a hypertonic solution

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Molecules that serve as chemical signals to open or close gated ion channels are

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What cell type would have many Golgi apparatus?

Correct AnswerverifiedShow Answer

What type of membrane proteins allow cells to identify one another?

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The "control center" of the cell is the

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Cytoplasm is found

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The structural RNA of ribosomes is a

Correct AnswerverifiedShow Answer

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In general,water-soluble molecules diffuse through the ; and lipid-soluble molecules diffuse through the .

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