Question 1

Plasma membrane phospholipids

Accepted Answer

A)  have nonpolar fatty acid tails.
B)  form a bilayer.
C)  have polar phosphate heads.
D)  create a selectively permeable barrier.
E)  All of these choices are correct.F) B) and C)
G) A) and E)

Question 2

Which of the following cell organelles does not contain microtubules?

Accepted Answer

A)  cilia
B)  flagella
C)  spindle fibers
D)  centrioles
E)  All of these choices contain microtubules.F) A) and C)
G) A) and B)

Question 3

Which of the following sequences is correct?

Accepted Answer

A)  translation  →\rightarrow→  transcription  →\rightarrow→  protein synthesis
B)  transcription  →\rightarrow→  protein synthesis  →\rightarrow→  translation
C)  translation  →\rightarrow→  protein synthesis  →\rightarrow→  transcription
D)  transcription  →\rightarrow→  translation  →\rightarrow→  protein synthesis
E)  protein synthesis  →\rightarrow→  translation  →\rightarrow→  transcription F) All of the above
G) B) and E)

Question 4

The process by which there is programmed cellular death is _____.

Accepted Answer

A)   apoptosis
B)   differentiation
C)   mitosis
D)   cleavageE) B) and C)
F) A) and D)

Question 5

Which of the following is NOT an example of a cytoplasmic inclusion?

Accepted Answer

A)  lipid droplets
B)  hemoglobin
C)  actin filaments
D)  melanin
E)  lipochromeF) A) and B)
G) A) and C)

Question 6

Arrange the following events of exocytosis in the correct sequence: (1) vesicle membrane fuses with plasma membrane
(2) secretory vesicles migrate to plasma membrane
(3) vesicle contents are expelled from cell
(4) secretions accumulate within secretory vesicles

Accepted Answer

A)  1,4,2,3
B)  2,1,4,3
C)  1,2,3,4
D)  4,2,1,3
E)  3,1,4,2F) C) and D)
G) A) and D)

Question 7

A cell uses centrioles in the process of

Accepted Answer

A)  protein synthesis.
B)  RNA replication.
C)  cell division.
D)  energy generation.
E)  nuclear centering.F) D) and E)
G) A) and D)

Question 8

According to the most current model of the plasma membrane,

Accepted Answer

A)  the membrane is a rigid unchanging structure.
B)  cholesterol forms the innermost layer of the membrane.
C)  phospholipids and cholesterol form a single lipid bilayer.
D)  proteins are free to move about within a double layer of phospholipids.
E)  the membrane is impermeable to all other molecules.F) All of the above
G) C) and D)

Question 9

Which of the following is NOT a G-protein complex protein?

Accepted Answer

A)  delta
B)  gamma
C)  alpha
D)  beta
E)  None of these choices are correct.F) A) and B)
G) A) and C)

Question 10

At the base of each cilium is a structure called the

Accepted Answer

A)  kinetochore.
B)  basal body.
C)  dynein arm.
D)  centrosome.
E)  None of these choices is correct.F) D) and E)
G) C) and D)

Question 11

The aroma of cookies baking in the kitchen reaches you in the living room.The distribution of this odor throughout the house is an example of

Accepted Answer

A)  osmosis.
B)  filtration.
C)  diffusion.
D)  dialysis.
E)  active transport.F) A) and D)
G) B) and D)

Question 12

Pinocytosis

Accepted Answer

A)  forms vesicles only when large amounts of material are being transported.
B)  does not require ATP.
C)  is a form of exocytosis.
D)  involves ingestion of liquids rather than particles.
E)  does not require the formation of vesicles.F) A) and D)
G) B) and D)

Question 13

In ______________,carrier molecules move a substance against (up) the concentration gradient.

Accepted Answer

A)  facilitated diffusion
B)  simple diffusion
C)  endocytosis
D)  active transport
E)  exocytosisF) A) and B)
G) B) and E)

Question 14

What type of membrane proteins form a passageway through the plasma membrane?

Accepted Answer

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

Question 15

The sodium-potassium pump located in the plasma membrane

Accepted Answer

A)  osmotically moves sodium into cells.
B)  actively transports potassium into cells.
C)  actively transports water out of cells.
D)  moves chlorine out of cells.
E)  actively transports sodium into cells.F) C) and D)
G) B) and D)

Question 16

-Red blood cells (RBCs) have been placed in three different solutions: hypotonic,hypertonic,isotonic.What is solution "B" relative to the RBC?

Accepted Answer

A)  hemolyzed
B)  isotonic solution
C)  hypertonic solution
D)  crenated
E)  hypotonic solutionF) B) and E)
G) None of the above

Question 17

A cell's ability to replenish ATP is reduced by a metabolic poison.Which organelle is being affected?

Accepted Answer

A)  nucleus
B)  mitochondrion
C)  centriole
D)  ribosomes
E)  microtubuleF) B) and E)
G) B) and D)

Question 18

Which of the following pairs of terms is mismatched?

Accepted Answer

A)  lysosomes - hydrolytic enzymes
B)  mitochondria - cristae
C)  Golgi apparatus - cisternae
D)  cilia - basal bodies
E)  smooth endoplasmic reticulum - chromatinF) A) and E)
G) A) and C)

Question 19

The sequence of nucleotides in a messenger RNA molecule is needed to determine the sequence of

Accepted Answer

A)  amino acids in a protein.
B)  nucleotides in the anticodons of tRNA.
C)  nucleotides in a gene.
D)  amino acids in DNA.
E)  codons in DNA.F) C) and D)
G) D) and E)

Question 20

The environment outside the plasma membrane is most appropriately referred to as

Accepted Answer

A)  intracellular.
B)  extracellular.
C)  multicellular.
D)  centrocellular.
E)  None of these choices are correct.F) A) and C)
G) B) and E)

Exam 3: Cell Biology

The sequence of nucleotides in a messenger RNA molecule is needed to determine the sequence of

Correct AnswerverifiedShow Answer

Which of the following sequences is correct?

Correct AnswerverifiedShow Answer

At the base of each cilium is a structure called the

Correct AnswerverifiedShow Answer

The aroma of cookies baking in the kitchen reaches you in the living room.The distribution of this odor throughout the house is an example of

Correct AnswerverifiedShow Answer

-Red blood cells (RBCs) have been placed in three different solutions: hypotonic,hypertonic,isotonic.What is solution "B" relative to the RBC?

Correct AnswerverifiedShow Answer

A cell uses centrioles in the process of

Correct AnswerverifiedShow Answer

Which of the following is NOT a G-protein complex protein?

Correct AnswerverifiedShow Answer

The sodium-potassium pump located in the plasma membrane

Correct AnswerverifiedShow Answer

Which of the following cell organelles does not contain microtubules?

Correct AnswerverifiedShow Answer

The environment outside the plasma membrane is most appropriately referred to as

Correct AnswerverifiedShow Answer

Which of the following pairs of terms is mismatched?

Correct AnswerverifiedShow Answer

In ______________,carrier molecules move a substance against (up) the concentration gradient.

Correct AnswerverifiedShow Answer

Plasma membrane phospholipids

Correct AnswerverifiedShow Answer

Arrange the following events of exocytosis in the correct sequence: (1) vesicle membrane fuses with plasma membrane (2) secretory vesicles migrate to plasma membrane (3) vesicle contents are expelled from cell (4) secretions accumulate within secretory vesicles

Correct AnswerverifiedShow Answer

According to the most current model of the plasma membrane,

Correct AnswerverifiedShow Answer

What type of membrane proteins form a passageway through the plasma membrane?

Correct AnswerverifiedShow Answer

A cell's ability to replenish ATP is reduced by a metabolic poison.Which organelle is being affected?

Correct AnswerverifiedShow Answer

The process by which there is programmed cellular death is _____.

Correct AnswerverifiedShow Answer

Pinocytosis

Correct AnswerverifiedShow Answer

Which of the following is NOT an example of a cytoplasmic inclusion?

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