Question 1

The sacs containing hydrolytic enzymes are called

Accepted Answer

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

Question 2

Membrane proteins that extend into the lipid bilayer are called

Accepted Answer

A)   peripheral proteins.
B)   extrinsic proteins.
C)   integral proteins.
D)   glycoproteins.
E)   lipoproteins.F) B) and E)
G) C) and D)

Question 3

Endocytosis

Accepted Answer

A)   is movement of water through a selectively permeable membrane.
B)   is a process that requires a carrier molecule but does not use cellular energy.
C)   is the bulk uptake of material through the plasma membrane by vesicle formation.
D)   moves material out of the cell.
E)   ends cell functions.F) None of the above
G) B) and D)

Question 4

What type of cell would have an abundance of peroxisomes?

Accepted Answer

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

Question 5

Which of the following cell organelles is CORRECTLY matched with its function?

Accepted Answer

A)   nucleolus - contains the genetic material of the cell
B)   microtubules - cell support
C)   mitochondria - protein synthesis
D)   smooth ER - ATP production
E)   ribosome - energy productionF) B) and D)
G) A) and E)

Question 6

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

Accepted Answer

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

Question 7

Before cell division occurs, DNA in the nucleus is condensed to form

Accepted Answer

A)   RNA.
B)   cytosol.
C)   genes.
D)   chromosomes.
E)   chromatin.F) A) and B)
G) A) and C)

Question 8

Which of the following correctly matches a nuclear structure with its function?

Accepted Answer

A)   chromosomes - contains RNA and histones
B)   nuclear envelope - contains the nucleolar organizer
C)   nuclear pores - allow molecules to move between the nucleus and cytoplasm.
D)   chromatin - fluid portion of the nucleus
E)   nucleolus - DNA synthesisF) A) and D)
G) B) and E)

Question 9

What organelles are the sites of protein synthesis?

Accepted Answer

A)   nucleus
B)   ribosomes
C)   lysosomes
D)   mitochondria
E)   centriolesF) A) and E)
G) A) and D)

Question 10

The centrioles are found in a zone of cytoplasm close to the nucleus called the

Accepted Answer

A)   cytogel.
B)   cytosol.
C)   vacuole.
D)   centrosome.
E)   proteasome.F) B) and E)
G) All of the above

Question 11

Which of the following statements concerning membrane transport across the plasma membrane is true?

Accepted Answer

A)   Polar molecules are transported more easily than nonpolar molecules.
B)   Lipid-soluble substances pass through the membrane by dissolving in the lipid bilayer.
C)   Water cannot move through the membrane.
D)   Generally, cations pass through the membrane more easily than anions.
E)   All molecules are moved across by active transport.F) D) and E)
G) B) and C)

Question 12

White blood cells digest other cells and so would be expected to

Accepted Answer

A)   have large numbers of lysosomes.
B)   possess cilia on their surfaces so they can move quickly.
C)   excrete excess salt as a result of all this eating.
D)   expel their nuclei to make room for all of the cells they eat.
E)   have mitochondria to energize them.F) A) and D)
G) D) and E)

Question 13

Microtubules

Accepted Answer

A)   are the smallest components of the cytoskeleton.
B)   contain the protein myosin.
C)   provide structure and support to the cytoplasm.
D)   are solid, supporting rods of protein.
E)   are a component of mitochondria.F) A) and E)
G) A) and D)

Question 14

-What structure does "B" represent on the diagram of the plasma membrane?

Accepted Answer

A)   membrane channel protein
B)   phospholipid bilayer
C)   internal membrane surface
D)   peripheral protein
E)   integral proteinF) D) and E)
G) None of the above

Question 15

Which of the following events occurs in the secondary active transport of glucose?

Accepted Answer

A)   Na+ ions and glucose are cotransported by the same carrier molecule.
B)   The Na+-K+ pump maintains a Na+ concentration gradient inside the cell.
C)   Energy comes from diffusion of Na+ down their concentration gradient.
D)   Glucose is moved against its concentration gradient into the cell.
E)   All of these choices are correct.F) B) and C)
G) B) and E)

Question 16

What type of cell would have an abundance of lysosomes?

Accepted Answer

A)   white blood cell, a phagocyte
B)   mucus cell (secretes mucus) 
C)   liver cells that detoxify hydrogen peroxide
D)   cardiac muscle cells (require large amounts of ATP) 
E)   fibroblast (makes protein fibers) F) B) and D)
G) None of the above

Question 17

DNA replication occurs during

Accepted Answer

A)   the G1 phase of interphase.
B)   telophase.
C)   the S phase of interphase.
D)   anaphase.
E)   metaphase.F) A) and E)
G) B) and D)

Question 18

What cell type would have many Golgi apparatus?

Accepted Answer

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

Question 19

Which of the following is NOT true of G-protein complex action?

Accepted Answer

A)   Stimulates a cell by means of extracellular chemical signals.
B)   Stimulates a cell by opening ion channels in the plasma membrane.
C)   Stimulates a cell by means of intracellular chemical signals.
D)   Stimulates a cell by activating enzymes associated with the plasma membrane.
E)   Acts as an intermediate between a receptor and other cellular proteins.F) None of the above
G) A) and B)

Question 20

Membrane-bound receptors

Accepted Answer

A)   are small, lipid soluble molecules.
B)   have their receptor sites on the outer surface of the plasma membrane.
C)   can interact with DNA in the nucleus.
D)   do not exhibit specificity.
E)   have no effect on the cell.F) None of the above
G) A) and E)

Exam 3: Cell Biology

Which of the following cell organelles is CORRECTLY matched with its function?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Before cell division occurs, DNA in the nucleus is condensed to form

Correct AnswerverifiedShow Answer

What type of cell would have an abundance of peroxisomes?

Correct AnswerverifiedShow Answer

Which of the following events occurs in the secondary active transport of glucose?

Correct AnswerverifiedShow Answer

-What structure does "B" represent on the diagram of the plasma membrane?

Correct AnswerverifiedShow Answer

Which of the following statements concerning membrane transport across the plasma membrane is true?

Correct AnswerverifiedShow Answer

Endocytosis

Correct AnswerverifiedShow Answer

Membrane-bound receptors

Correct AnswerverifiedShow Answer

Which of the following correctly matches a nuclear structure with its function?

Correct AnswerverifiedShow Answer

The sacs containing hydrolytic enzymes are called

Correct AnswerverifiedShow Answer

What organelles are the sites of protein synthesis?

Correct AnswerverifiedShow Answer

Microtubules

Correct AnswerverifiedShow Answer

What type of cell would have an abundance of lysosomes?

Correct AnswerverifiedShow Answer

What cell type would have many Golgi apparatus?

Correct AnswerverifiedShow Answer

Which of the following is NOT true of G-protein complex action?

Correct AnswerverifiedShow Answer

White blood cells digest other cells and so would be expected to

Correct AnswerverifiedShow Answer

The centrioles are found in a zone of cytoplasm close to the nucleus called the

Correct AnswerverifiedShow Answer

Membrane proteins that extend into the lipid bilayer are called

Correct AnswerverifiedShow Answer

DNA replication occurs during

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified