Question 1

The process of forming mRNA is called

Accepted Answer

A)   replication.
B)   transcription.
C)   translation.
D)   ribolation.
E)   auscultation.F) A) and B)
G) A) and C)

Question 2

The nucleus is surrounded by the

Accepted Answer

A)   plasma membrane.
B)   membranous sac.
C)   phospholipid bilayer.
D)   nuclear envelope.
E)   chromosome shield.F) B) and D)
G) C) and D)

Question 3

Cilia and flagella contain nine pairs of ________ surrounding a central pair.

Accepted Answer

A)   microvilli
B)   microfilaments
C)   microsomes
D)   microtubules
E)   intermediate filamentsF) B) and D)
G) None of the above

Question 4

In-Text Figure Based Questions
-What are the three different components that make up the cytoskeleton in all body cells? (Figure 3-3)

Accepted Answer

A)   thick filaments, thin filaments, intermediate filaments
B)   microfilaments, microvilli, villi
C)   microfilaments, intermediate filaments, microtubules
D)   thick filaments, thin filaments, microvilli
E)   microtubules, macrotubules, tubulesF) D) and E)
G) B) and C)

Question 5

During mitosis, chromatids separate into daughter chromosomes at the start of

Accepted Answer

A)   prophase.
B)   metaphase.
C)   interphase.
D)   telophase.
E)   anaphase.F) All of the above
G) B) and C)

Question 6

A patient suffers blood loss and is given IV fluids that contain an impermeable carbohydrate called dextran, which serves to ________ leading to an increase in blood volume.

Accepted Answer

A)   provide nutrition
B)   increase the osmolarity of the blood
C)   increase the oxygen-carrying capacity of the blood
D)   decrease the osmolarity of the blood
E)   reduce blood clottingF) None of the above
G) B) and D)

Question 7

Figure 3-1 The Plasma membrane

Use Figure 3-1 to answer the following questions.
-What part of the plasma membrane is hydrophobic?

Accepted Answer

A)   2
B)   3
C)   4
D)   5
E)   6F) A) and E)
G) A) and D)

Question 8

A blood cell undergoes crenation when it is placed in a(n)  ________ solution.

Accepted Answer

A)   isotonic
B)   hypertonic
C)   hypotonic
D)   merotonic
E)   homotonicF) A) and C)
G) C) and E)

Question 9

Diffusion of a substance across the cell membrane may be influenced by all of the following except

Accepted Answer

A)   the availability of ATP.
B)   the presence of membrane channels for the substance.
C)   its charge of the substance.
D)   its concentration gradient.
E)   its lipid solubility.F) D) and E)
G) A) and E)

Question 10

The watery component of the cytoplasm is called

Accepted Answer

A)   cytosol.
B)   protoplasm.
C)   extracellular fluid.
D)   interstitial fluid.
E)   matrix.F) D) and E)
G) A) and E)

Question 11

In-Text Figure Based Questions
-How is DNA organized in the nucleus when the cell is prepared for division? How is DNA organized in the nucleus when the cell is not dividing? (Figure 3-11)

Accepted Answer

A)  ______tightly coiled as chromosomes; loosely coiled as chromatin
B)   tightly coiled as chromatin; loosely coiled as chromosomes
C)   loosely coiled as chromosomes; tightly coiled as chromatin
D)   loosely coiled as chromatin; tightly coiled as chromosomes
E)   loosely coiled as chromosomes; loosely coiled as chromatinF) B) and E)
G) B) and C)

Question 12

Which of following properties of microtubules is correct?

Accepted Answer

A)   made of myosin
B)   made of actin
C)   found only in the terminal web
D)   another term for microfilaments
E)   interact with dynein and kinesinF) C) and D)
G) B) and D)

Question 13

If the amount of chloride ion in blood plasma increases, which of the following would initially occur?

Accepted Answer

A)   The blood osmotic pressure will increase.
B)   The blood osmotic pressure will decrease.
C)   The blood osmotic pressure will stay the same.
D)   The blood hydrostatic pressure will increase.
E)   The blood hydrostatic pressure will decrease.F) A) and C)
G) C) and D)

Question 14

________, which is usually inactive in adult cells, is active in 90% of cancer cells.

Accepted Answer

A)   Phagocytosis
B)   Apoptosis
C)   The p53 gene
D)   Telomerase
E)   DNA polymeraseF) A) and E)
G) B) and E)

Question 15

The cytoplasm contains the fluid cytosol, insoluble inclusions, and the

Accepted Answer

A)   microvilli.
B)   nucleolus.
C)   enzymes.
D)   organelles.
E)   cilia.F) None of the above
G) All of the above

Question 16

The electric potential difference across the cell membrane is known as

Accepted Answer

A)   the membrane potential.
B)   the membrane difference.
C)   the cellular potential.
D)   the cellular difference.
E)   the plasmalemma potential.F) All of the above
G) A) and E)

Question 17

Which of the following cytoskeleton components moves the chromosomes during cell division?

Accepted Answer

A)   microfilaments
B)   intermediate filaments
C)   thick filaments
D)   microtubules
E)   basal bodiesF) A) and C)
G) B) and D)

Question 18

How is the plasma membrane involved in structural support of body tissues?

Accepted Answer

A)   It has specialized connections to other cells or extracellular materials.
B)   It primarily consists of fibrous proteins.
C)   It is inflated by cytoplasm at high pressure.
D)   Tissues are largely composed of empty plasma membranes left by dead cells.
E)   It is hydrophobic, so it repels extracellular fluid and attracts the membranes of other cells.F) C) and E)
G) B) and E)

Question 19

Most of a cell's DNA is located in its

Accepted Answer

A)   ribosomes.
B)   lysosomes.
C)   Golgi apparatus.
D)   nucleus.
E)   nucleolus.F) C) and D)
G) A) and E)

Question 20

Compared to the extracellular fluid, cytosol contains

Accepted Answer

A)   a higher concentration of potassium ions.
B)   a lower concentration of dissolved proteins.
C)   almost no glycogen.
D)   a higher concentration of amino acids.
E)   almost no lipids.F) B) and C)
G) C) and D)

Exam 3: The Cellular Level of Organization

A patient suffers blood loss and is given IV fluids that contain an impermeable carbohydrate called dextran, which serves to ________ leading to an increase in blood volume.

Correct AnswerverifiedShow Answer

A blood cell undergoes crenation when it is placed in a(n) ________ solution.

Correct AnswerverifiedShow Answer

In-Text Figure Based Questions -What are the three different components that make up the cytoskeleton in all body cells? (Figure 3-3)

Correct AnswerverifiedShow Answer

The watery component of the cytoplasm is called

Correct AnswerverifiedShow Answer

Which of following properties of microtubules is correct?

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The electric potential difference across the cell membrane is known as

Correct AnswerverifiedShow Answer

Compared to the extracellular fluid, cytosol contains

Correct AnswerverifiedShow Answer

Cilia and flagella contain nine pairs of ________ surrounding a central pair.

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The nucleus is surrounded by the

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Which of the following cytoskeleton components moves the chromosomes during cell division?

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How is the plasma membrane involved in structural support of body tissues?

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During mitosis, chromatids separate into daughter chromosomes at the start of

Correct AnswerverifiedShow Answer

Figure 3-1 The Plasma membrane Use Figure 3-1 to answer the following questions. -What part of the plasma membrane is hydrophobic?

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If the amount of chloride ion in blood plasma increases, which of the following would initially occur?

Correct AnswerverifiedShow Answer

Diffusion of a substance across the cell membrane may be influenced by all of the following except

Correct AnswerverifiedShow Answer

The process of forming mRNA is called

Correct AnswerverifiedShow Answer

Most of a cell's DNA is located in its

Correct AnswerverifiedShow Answer

The cytoplasm contains the fluid cytosol, insoluble inclusions, and the

Correct AnswerverifiedShow Answer

In-Text Figure Based Questions -How is DNA organized in the nucleus when the cell is prepared for division? How is DNA organized in the nucleus when the cell is not dividing? (Figure 3-11)

Correct AnswerverifiedShow Answer

________, which is usually inactive in adult cells, is active in 90% of cancer cells.

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