Question 1

This type of membrane protein extends across the entire lipid bilayer of the plasma membrane touching both intracellular fluid and the extracellular fluid.

Accepted Answer

A)  complement protein
B)  transmembrane protein
C)  peripheral protein
D)  lipoprotein
E)  All of these choices are correct.

Question 2

Compare mitosis to meiosis.

Accepted Answer

Mitosis is somatic cell division that pr...

Question 3

Which of the following transport process uses vesicles formed at the plasma membrane to take up extracellular substances and import them into the cell?

Accepted Answer

A)  endocytosis
B)  exocytosis
C)  facilitated diffusion
D)  osmosis
E)  Both endocytosis and exocytosis.

Question 4

Which of the following is the correct sequence of events in bulk-phase endocytosis shown in the figure?
 fusion of lysosome and vesicle > vesicle formed pinches off into cytosol > digestion by enzymes > solutes released B) solutes released > plasma membrane forms vesicle around extracellular droplets > fusion of lysosome and vesicle > vesicle formed pinches off into cytosol > digestion by enzymes C) vesicle formed pinches off into cytosol > solutes released > plasma membrane forms vesicle around extracellular droplets > fusion of lysosome and vesicle > digestion by enzymes D) vesicle formed pinches off into cytosol > plasma membrane forms vesicle around extracellular droplets > fusion of lysosome and vesicle > digestion by enzymes > solutes released E) plasma membrane forms vesicle around extracellular droplets > vesicle formed pinches off into cytosol > fusion of lysosome and vesicle > digestion by enzymes > solutes released" class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)  plasma membrane forms vesicle around extracellular droplets > fusion of lysosome and vesicle > vesicle formed pinches off into cytosol > digestion by enzymes > solutes released
B)  solutes released > plasma membrane forms vesicle around extracellular droplets > fusion of lysosome and vesicle > vesicle formed pinches off into cytosol > digestion by enzymes
C)  vesicle formed pinches off into cytosol > solutes released > plasma membrane forms vesicle around extracellular droplets > fusion of lysosome and vesicle > digestion by enzymes
D)  vesicle formed pinches off into cytosol > plasma membrane forms vesicle around extracellular droplets > fusion of lysosome and vesicle > digestion by enzymes > solutes released
E)  plasma membrane forms vesicle around extracellular droplets > vesicle formed pinches off into cytosol > fusion of lysosome and vesicle > digestion by enzymes > solutes released

Question 5

In the diagram,which organelle aids movement of the cell?

Accepted Answer

A)  A
B)  G
C)  H
D)  D
E)  I

Question 6

In the diagram,which one represents carrier-mediated facilitated diffusion?

Accepted Answer

A)  A
B)  B
C)  C
D)  Both A and C
E)  Both B and C

Question 7

Briefly describe the fluid mosaic model.

Accepted Answer

The fluid mosaic model states ...

Question 8

During this phase of cell division,organelles duplicate and centrosome replication begins.

Accepted Answer

A)  interphase
B)  prophase
C)  metaphase
D)  anaphase
E)  telophase

Question 9

This cellular organelle is comprised of a pair of centrioles and the surrounding pericentriolar material.

Accepted Answer

A)  cytoskeleton
B)  cilia
C)  centrosome
D)  flagella
E)  peroxisomes

Question 10

Which of the following membrane-enclosed organelles modifies,sorts,and packages proteins destined for other regions of the cell?

Accepted Answer

A)  endoplasmic reticulum
B)  Golgi complex
C)  peroxisomes
D)  nucleus
E)  proteasome

Question 11

What compound would a cell lacking ribosomes be unable to make?

Accepted Answer

A)  lipids
B)  nucleotides
C)  proteins
D)  carbohydrates
E)  phospholipids

Question 12

This type of membrane protein enables cells to catalyze specific chemical reactions at the inner or outer surface of their plasma membrane.

Accepted Answer

A)  receptors
B)  phospholipids
C)  cholesterol
D)  enzymes
E)  ligands

Question 13

Which of the following membrane-enclosed organelles is the site of synthesis of membrane proteins and secretory proteins?

Accepted Answer

A)  rough endoplasmic reticulum
B)  smooth endoplasmic reticulum
C)  nucleus
D)  centrosome
E)  Golgi complex

Question 14

In the diagram,which panel shows the kinetochore of the centromeres aligning along the center of the mitotic spindle of the cell?

Accepted Answer

A)  A
B)  B
C)  C
D)  D
E)  E

Question 15

Which of the following represents an ion channel?

Accepted Answer

A)  F
B)  C
C)  D
D)  A
E)  E

Question 16

Which organelle is responsible for synthesis of steroids,phospholipids and functions as a reservoir for Ca2+?

Accepted Answer

A)  mitochondrion
B)  secretory vesicle
C)  smooth endoplasmic reticulum
D)  rough endoplasmic reticulum
E)  lysosome

Question 17

Which of the following is the correct sequence of events in receptor-mediated endocytosis shown in the figure?
 degradation in lysosomes > vesicle formation > uncoating > recycling of receptors to plasma membrane > fusion with endosome B) degradation in lysosomes > fusion with endosome > recycling of receptors to plasma membrane > uncoating > vesicle formation > binding C) degradation in lysosomes > recycling of receptors to plasma membrane > fusion with endosome > uncoating > vesicle formation > binding D) binding > vesicle formation > uncoating > fusion with endosome > recycling of receptors to plasma membrane > degradation in lysosomes E) binding > uncoating > vesicle formation > fusion with endosome > degradation in lysosomes > recycling of receptors to plasma membrane" class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)  binding > degradation in lysosomes > vesicle formation > uncoating > recycling of receptors to plasma membrane > fusion with endosome
B)  degradation in lysosomes > fusion with endosome > recycling of receptors to plasma membrane > uncoating > vesicle formation > binding
C)  degradation in lysosomes > recycling of receptors to plasma membrane > fusion with endosome > uncoating > vesicle formation > binding
D)  binding > vesicle formation > uncoating > fusion with endosome > recycling of receptors to plasma membrane > degradation in lysosomes
E)  binding > uncoating > vesicle formation > fusion with endosome > degradation in lysosomes > recycling of receptors to plasma membrane

Question 18

Most intravenous solutions are _____ with respect to blood cells?

Accepted Answer

A)  tonicity
B)  isotonic
C)  hypertonic
D)  osmotic
E)  hypotonic

Question 19

This portion of a DNA segment does not code for a protein.

Accepted Answer

A)  RNA
B)  introns
C)  exons
D)  polyribosome
E)  ribosome

Question 20

What is the major function of histones?

Accepted Answer

A)  needed for helix formation of the DNA
B)  add negative charge to the DNA
C)  help organize coiling and folding of the DNA
D)  degrade faulty proteins in the nucleus
E)  catalyze methylation of the DNA

Exam 3: The Cellular Level of Organization

Compare mitosis to meiosis.

Correct AnswerverifiedMitosis is somatic cell division that pr...View AnswerShow Answer

Which organelle is responsible for synthesis of steroids,phospholipids and functions as a reservoir for Ca2+?

Correct AnswerverifiedShow Answer

Which of the following transport process uses vesicles formed at the plasma membrane to take up extracellular substances and import them into the cell?

Correct AnswerverifiedShow Answer

In the diagram,which panel shows the kinetochore of the centromeres aligning along the center of the mitotic spindle of the cell?

Correct AnswerverifiedShow Answer

What is the major function of histones?

Correct AnswerverifiedShow Answer

Briefly describe the fluid mosaic model.

Correct AnswerverifiedThe fluid mosaic model states ...View AnswerShow Answer

Which of the following membrane-enclosed organelles modifies,sorts,and packages proteins destined for other regions of the cell?

Correct AnswerverifiedShow Answer

This portion of a DNA segment does not code for a protein.

Correct AnswerverifiedShow Answer

Which of the following represents an ion channel?

Correct AnswerverifiedShow Answer

This type of membrane protein enables cells to catalyze specific chemical reactions at the inner or outer surface of their plasma membrane.

Correct AnswerverifiedShow Answer

In the diagram,which organelle aids movement of the cell?

Correct AnswerverifiedShow Answer

During this phase of cell division,organelles duplicate and centrosome replication begins.

Correct AnswerverifiedShow Answer

Which of the following is the correct sequence of events in receptor-mediated endocytosis shown in the figure?

Correct AnswerverifiedShow Answer

Which of the following membrane-enclosed organelles is the site of synthesis of membrane proteins and secretory proteins?

Correct AnswerverifiedShow Answer

This cellular organelle is comprised of a pair of centrioles and the surrounding pericentriolar material.

Correct AnswerverifiedShow Answer

Most intravenous solutions are _____ with respect to blood cells?

Correct AnswerverifiedShow Answer

In the diagram,which one represents carrier-mediated facilitated diffusion?

Correct AnswerverifiedShow Answer

Which of the following is the correct sequence of events in bulk-phase endocytosis shown in the figure?

Correct AnswerverifiedShow Answer

This type of membrane protein extends across the entire lipid bilayer of the plasma membrane touching both intracellular fluid and the extracellular fluid.

Correct AnswerverifiedShow Answer

What compound would a cell lacking ribosomes be unable to make?

Correct AnswerverifiedShow Answer

Correct Answer
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Mitosis is somatic cell division that pr...
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Which organelle is responsible for synthesis of steroids,phospholipids and functions as a reservoir for Ca²⁺?

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The fluid mosaic model states ...
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