Question 1

Which cytoskeletal structure is found only in males?

Accepted Answer

A) cilia 
B) centrioles 
C) flagella 
D) microfilaments 
E) thick filaments 
A) cilia 
B) centrioles 
C) flagella 
D) microfilaments 
E) thick filaments

Question 2

The ER is connected to and continuous with what other organelle in the cell?

Accepted Answer

A) the nuclear envelope around the nucleus 
B) the peroxisome 
C) the mitochondria 
D) the Golgi apparatus 
E) the lysosome 
A) the nuclear envelope around the nucleus 
B) the peroxisome 
C) the mitochondria 
D) the Golgi apparatus 
E) the lysosome

Question 3

Which of the following is correct about peripheral proteins?

Accepted Answer

A) They are bound to the inner or outer surface of plasma membrane. 
B) They have regulatory functions. 
C) They are also called transmembrane proteins. 
D) They span the width of the plasma membrane at least one time. 
E) They outnumber integral proteins. 
A) They are bound to the inner or outer surface of plasma membrane. 
B) They have regulatory functions. 
C) They are also called transmembrane proteins. 
D) They span the width of the plasma membrane at least one time. 
E) They outnumber integral proteins.

Question 4

Describe the colliding molecules in the figure below.

Accepted Answer

Collisions are occur

Question 5

Which phase of the cell cycle has the most variable duration?

Accepted Answer

A) S phase 
B) G0 phase 
C) G1 phase 
D) G2 phase 
E) V phase 
A) S phase 
B) G0 phase 
C) G1 phase 
D) G2 phase 
E) V phase

Question 6

-In Figure 3-1,which molecule is the peripheral protein?

Accepted Answer

A) 1 
B) 7 
C) 3 
D) 2 
E) 8 
A) 1 
B) 7 
C) 3 
D) 2 
E) 8

Question 7

Two types of vesicular transport are

Accepted Answer

A) endocytosis and retrocytosis. 
B) endocytosis and exocytosis. 
C) exocytosis and retrocytosis. 
D) pinocytosis and active transport. 
E) passive diffusion and active diffusion. 
A) endocytosis and retrocytosis. 
B) endocytosis and exocytosis. 
C) exocytosis and retrocytosis. 
D) pinocytosis and active transport. 
E) passive diffusion and active diffusion.

Question 8

What is the term for rRNA?

Accepted Answer

A) ribosomal ribonucleic acid 
B) rough ribosomal nucleic acid 
C) reticulated ribonucleic acid 
D) rough nucleic acid 
E) ribosomal nucleic acid 
A) ribosomal ribonucleic acid 
B) rough ribosomal nucleic acid 
C) reticulated ribonucleic acid 
D) rough nucleic acid 
E) ribosomal nucleic acid

Question 9

Define permeability.

Accepted Answer

Permeability is the plasma mem

Question 10

Water molecules and small ions enter a cell through

Accepted Answer

A) channels formed by integral proteins. 
B) peripheral proteins. 
C) lipid channels. 
D) peripheral carbohydrates. 
E) defects in the lipid layer of the membrane. 
A) channels formed by integral proteins. 
B) peripheral proteins. 
C) lipid channels. 
D) peripheral carbohydrates. 
E) defects in the lipid layer of the membrane.

Question 11

Define mitosis,and list its four stages.

Accepted Answer

A) Mitosis is the division of a cell into two identical daughter cells.The four stages are prophase,metaphase,anaphase,and telophase. 
B) Mitosis is the division of a cell into two identical daughter cells.The four stages are G0,G1,S,and G2. 
C) Mitosis is the division of a cell into four non-identical gametes.The four stages are prophase,metaphase,anaphase,and telophase. 
D) Mitosis is the division of a cell into four non-identical gametes.The four stages are G0,G1,S,and G2. 
E) Mitosis is the replication of DNA prior to cell division.The four stages are unwinding,primer binding,elongation,and ligation. 
A) Mitosis is the division of a cell into two identical daughter cells.The four stages are prophase,metaphase,anaphase,and telophase. 
B) Mitosis is the division of a cell into two identical daughter cells.The four stages are G0,G1,S,and G2. 
C) Mitosis is the division of a cell into four non-identical gametes.The four stages are prophase,metaphase,anaphase,and telophase. 
D) Mitosis is the division of a cell into four non-identical gametes.The four stages are G0,G1,S,and G2. 
E) Mitosis is the replication of DNA prior to cell division.The four stages are unwinding,primer binding,elongation,and ligation.

Question 12

The functional units of DNA that contain the instructions for making one or more proteins are

Accepted Answer

A) chromosomes. 
B) genes. 
C) ribosomes. 
D) codons. 
E) RNA. 
A) chromosomes. 
B) genes. 
C) ribosomes. 
D) codons. 
E) RNA.

Question 13

Stacks of cisternae that store,alter,and package synthesized products are called

Accepted Answer

A) smooth endoplasmic reticulum. 
B) nucleus. 
C) mitochondria. 
D) Golgi apparatus. 
E) rough endoplasmic reticulum. 
A) smooth endoplasmic reticulum. 
B) nucleus. 
C) mitochondria. 
D) Golgi apparatus. 
E) rough endoplasmic reticulum.

Question 14

A mature red blood cell lacks a nucleus.Thus,it

Accepted Answer

A) can repair itself readily. 
B) is malformed. 
C) can only divide once more. 
D) will be a long-lived cell. 
E) cannot make new proteins and will be worn out within a few months. 
A) can repair itself readily. 
B) is malformed. 
C) can only divide once more. 
D) will be a long-lived cell. 
E) cannot make new proteins and will be worn out within a few months.

Question 15

What is transcription?

Accepted Answer

A) Making an identical copy of the DNA strand. 
B) Making an RNA strand from the DNA template. 
C) Making a DNA strand from the RNA template. 
D) Taking the mRNA sequence and producing a protein. 
E) Taking the cDNA sequence and producing a protein. 
A) Making an identical copy of the DNA strand. 
B) Making an RNA strand from the DNA template. 
C) Making a DNA strand from the RNA template. 
D) Taking the mRNA sequence and producing a protein. 
E) Taking the cDNA sequence and producing a protein.

Question 16

Which of the following organelles produces 95% of cell ATP?

Accepted Answer

A) lysosome 
B) peroxisome 
C) mitochondria 
D) microvilli 
E) ribosomes 
A) lysosome 
B) peroxisome 
C) mitochondria 
D) microvilli 
E) ribosomes

Question 17

"Spikes" form on a dehydrating blood cell when it is placed in a(n)________ solution.

Accepted Answer

A) isotonic 
B) hypertonic 
C) hypotonic 
A) isotonic 
B) hypertonic 
C) hypotonic

Question 18

Which of the following is not a function of membrane proteins?

Accepted Answer

A) bind to ligands 
B) regulate the passage of water and small solutes 
C) act as carrier molecules for various solutes 
D) act as anchors or stabilizers for the cell membrane 
E) serve as cell nutrients 
A) bind to ligands 
B) regulate the passage of water and small solutes 
C) act as carrier molecules for various solutes 
D) act as anchors or stabilizers for the cell membrane 
E) serve as cell nutrients

Question 19

A process that requires cellular energy to move a substance against its concentration gradient is called

Accepted Answer

A) active transport. 
B) passive transport. 
C) facilitated transport. 
D) osmosis. 
E) diffusion. 
A) active transport. 
B) passive transport. 
C) facilitated transport. 
D) osmosis. 
E) diffusion.

Question 20

Generally,cells with a very brief interphase and lacking a G0 phase

Accepted Answer

A) are stem cells. 
B) do not exhibit cytokinesis. 
C) have brief life spans. 
D) are reproductive cells. 
E) lack the enzyme DNA polymerase. 
A) are stem cells. 
B) do not exhibit cytokinesis. 
C) have brief life spans. 
D) are reproductive cells. 
E) lack the enzyme DNA polymerase.

Exam 3: Cellular Level of Organization

Which cytoskeletal structure is found only in males?

The ER is connected to and continuous with what other organelle in the cell?

Which of the following is correct about peripheral proteins?

Describe the colliding molecules in the figure below.

Which phase of the cell cycle has the most variable duration?

-In Figure 3-1,which molecule is the peripheral protein?

Two types of vesicular transport are

What is the term for rRNA?

Define permeability.

Water molecules and small ions enter a cell through

Define mitosis,and list its four stages.

The functional units of DNA that contain the instructions for making one or more proteins are

Stacks of cisternae that store,alter,and package synthesized products are called

A mature red blood cell lacks a nucleus.Thus,it

What is transcription?

Which of the following organelles produces 95% of cell ATP?

"Spikes" form on a dehydrating blood cell when it is placed in a(n)________ solution.

Which of the following is not a function of membrane proteins?

A process that requires cellular energy to move a substance against its concentration gradient is called

Generally,cells with a very brief interphase and lacking a G0 phase

An Introduction to Anatomy and Physiology

Chemical Level of Organization

Tissue Level of Organization

The Integumentary System

Bones and Bone Structure

The Skeleton

Joints

Skeletal Muscle Tissue

The Muscular System

Nervous Tissue

The Spinal Cord, spinal Nerves, and Spinal Reflexes

The Brain, cranial Nerves, and Sensory and Motor Pathways

The Autonomic Nervous System

The Special Senses

The Endocrine System

Blood

The Heart and Cardiovascular Function

Blood Vessels and Circulation

The Lymphatic System and Immunity

The Respiratory System

The Digestive System

Metabolism, nutrition, and Energetics

The Urinary System

Fluid,electrolyte,and Acid-Base Balance

The Reproductive System

Development and Inheritance

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