Question 1

What is cytokinesis? What is its role in the cell cycle?

Accepted Answer

Cytokinesis is the process by which daug...

Question 2

Which of the following is a non-membranous organelle?

Accepted Answer

A)   Golgi apparatus
B)   mitochondria
C)   nucleus
D)   centriole
E)   All of the answers are correct.F) C) and D)
G) A) and B)

Question 3

How do peroxisomes differ from lysosomes?

Accepted Answer

Peroxisomes are smaller than lysosomes, ...

Question 4

Which of the following is a cylindrical structure composed of short microtubules?

Accepted Answer

A)   DNA
B)   chromatin
C)   envelope
D)   nucleolus
E)   centrioleF) B) and C)
G) C) and D)

Question 5

Thick filaments ________.

Accepted Answer

A)   form intermediate filaments to stabilize organelle position
B)   are stable structures that do not change once formed
C)   are called neurofilaments in neurons
D)   interact with actin to produce contractions
E)   form the spindle apparatus during cell divisionF) All of the above
G) B) and C)

Question 6

Figure 2.1
  
Using the figure above, answer the following questions.
-What is the anatomical term for Label Q?

Accepted Answer

A)   Rough endoplasmic reticulum
B)   Nuclear envelope
C)   Nucleoplasm
D)   Nuclear matrix
E)   Nuclear poresF) A) and D)
G) D) and E)

Question 7

A passive process that involves the movement of water (solvent)molecules toward solute concentrations across a membrane is called facilitated diffusion.

Accepted Answer

A) True 
 B)False

Question 8

The mitochondrion is enclosed by a double membrane with numerous folds, or cristae, in the inner membrane; the fluid matrix of these organelles contains important metabolic enzymes.

Accepted Answer

A) True 
 B)False

Question 9

At intervals, the DNA wind around special proteins, forming a complex called ________; this complex may also coil around other special proteins.

Accepted Answer

A)   chromosome
B)   histone
C)   nuclear matrix
D)   chromatin
E)   nucleosomeF) A) and B)
G) C) and D)

Question 10

Active transport is an energy-requiring process whereby ions and possibly other materials are moved across a membrane by carrier proteins, which work despite an opposing concentration gradient.

Accepted Answer

A) True 
 B)False

Question 11

An active process for transporting extracellular fluid, such as water and small molecules, across a plasm membrane is ________.

Accepted Answer

A)   phagocytosis
B)   pinocytosis
C)   osmosis
D)   diffusion
E)   None of the answers are correct.F) C) and D)
G) B) and E)

Question 12

A major function of the Golgi apparatus is ________.

Accepted Answer

A)   the synthesis and packaging of secretions
B)   the renewal or modification of the nuclear envelope
C)   packaging of lipids for use in lysosomes
D)   detoxification and neutralization of cellular toxins
E)   degradation of bacteria and organic debrisF) B) and E)
G) C) and D)

Question 13

During ________, the centromere of each chromatid pair separates and the daughter chromosomes are pulled toward opposite ends of the cell, along the chromosomal microtubules.

Accepted Answer

A)   anaphase
B)   telophase
C)   interphase
D)   prophase
E)   metaphaseF) B) and E)
G) A) and E)

Question 14

The cytosol contains a high concentration of ________ ions, while the extracellular fluid usually contains a high concentration of ________ ions.

Accepted Answer

A)   calcium; magnesium
B)   potassium; sodium
C)   magnesium; calcium
D)   sodium; potassium
E)   hydrogen; chlorideF) B) and D)
G) C) and D)

Question 15

At structures called ________, two cells are held together by membrane proteins that function as a narrow passageway, allowing ions, small metabolites, and regulatory molecules to pass from cell to cell.

Accepted Answer

A)   anchoring junctions
B)   CAMs
C)   focal adhesions
D)   zonula adherens
E)   cell junctionsF) B) and E)
G) A) and E)

Question 16

The protein-synthesizing organelles are the ________.

Accepted Answer

A)   nucleus
B)   Golgi apparatus
C)   mitochondria
D)   lysosomes
E)   ribosomesF) B) and D)
G) B) and C)

Question 17

Predict the consequences of non-functional cilia in the respiratory airways.

Accepted Answer

Cilia lining the respiratory tract beat ...

Question 18

Which of the following describes phospholipids in the plasma membrane?

Accepted Answer

A)   The phospholipid tails are hydrophobic.
B)   The phospholipid tails are hydrophilic.
C)   The phospholipid heads are hydrophobic.
D)   The phospholipid tails are at the surface.
E)   The phospholipid heads are on the inside.F) All of the above
G) A) and B)

Question 19

Figure 2.1
  
Using the figure above, answer the following questions.
-What is the anatomical term for Label O?

Accepted Answer

A)   Rough endoplasmic reticulum
B)   Golgi apparatus
C)   Nucleus
D)   Mitochondrion
E)   CristaeF) None of the above
G) C) and E)

Question 20

Which of the following is a passive process for material movement across a plasma membrane?

Accepted Answer

A)   receptor-mediated endocytosis
B)   phagocytosis
C)   exocytosis
D)   active transport
E)   facilitated diffusionF) B) and D)
G) C) and E)

Exam 2: Foundations: The Cell

A passive process that involves the movement of water (solvent)molecules toward solute concentrations across a membrane is called facilitated diffusion.

Correct AnswerverifiedShow Answer

A major function of the Golgi apparatus is ________.

Correct AnswerverifiedShow Answer

Figure 2.1 Using the figure above, answer the following questions. -What is the anatomical term for Label Q?

Correct AnswerverifiedShow Answer

Which of the following is a non-membranous organelle?

Correct AnswerverifiedShow Answer

Active transport is an energy-requiring process whereby ions and possibly other materials are moved across a membrane by carrier proteins, which work despite an opposing concentration gradient.

Correct AnswerverifiedShow Answer

How do peroxisomes differ from lysosomes?

Correct AnswerverifiedPeroxisomes are smaller than lysosomes, ...View AnswerShow Answer

Thick filaments ________.

Correct AnswerverifiedShow Answer

During ________, the centromere of each chromatid pair separates and the daughter chromosomes are pulled toward opposite ends of the cell, along the chromosomal microtubules.

Correct AnswerverifiedShow Answer

Predict the consequences of non-functional cilia in the respiratory airways.

Correct AnswerverifiedCilia lining the respiratory tract beat ...View AnswerShow Answer

The protein-synthesizing organelles are the ________.

Correct AnswerverifiedShow Answer

The mitochondrion is enclosed by a double membrane with numerous folds, or cristae, in the inner membrane; the fluid matrix of these organelles contains important metabolic enzymes.

Correct AnswerverifiedShow Answer

The cytosol contains a high concentration of ________ ions, while the extracellular fluid usually contains a high concentration of ________ ions.

Correct AnswerverifiedShow Answer

Which of the following describes phospholipids in the plasma membrane?

Correct AnswerverifiedShow Answer

Which of the following is a cylindrical structure composed of short microtubules?

Correct AnswerverifiedShow Answer

An active process for transporting extracellular fluid, such as water and small molecules, across a plasm membrane is ________.

Correct AnswerverifiedShow Answer

At structures called ________, two cells are held together by membrane proteins that function as a narrow passageway, allowing ions, small metabolites, and regulatory molecules to pass from cell to cell.

Correct AnswerverifiedShow Answer

At intervals, the DNA wind around special proteins, forming a complex called ________; this complex may also coil around other special proteins.

Correct AnswerverifiedShow Answer

Which of the following is a passive process for material movement across a plasma membrane?

Correct AnswerverifiedShow Answer

Figure 2.1 Using the figure above, answer the following questions. -What is the anatomical term for Label O?

Correct AnswerverifiedShow Answer

What is cytokinesis? What is its role in the cell cycle?

Correct AnswerverifiedCytokinesis is the process by which daug...View AnswerShow Answer

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Peroxisomes are smaller than lysosomes, ...
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Cilia lining the respiratory tract beat ...
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The cytosol contains a high concentration of ions, while the extracellular fluid usually contains a high concentration of ions.

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Cytokinesis is the process by which daug...
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