Question 1

A gene is a set of specific instructions that

Accepted Answer

A) produces amino acids for proteins. 
B) copies DNA strands for mitosis. 
C) controls the process of mitosis. 
D) indicates the sequence of amino acids in a protein molecule. 
E) directs carbohydrate synthesis. 
A) produces amino acids for proteins. 
B) copies DNA strands for mitosis. 
C) controls the process of mitosis. 
D) indicates the sequence of amino acids in a protein molecule. 
E) directs carbohydrate synthesis.

Question 2

A)What are the similarities between facilitated diffusion and active transport?
B)What are the differences?

Accepted Answer

A)Both processes use carrier proteins an

Question 3

A membrane transport process is found experimentally to have a saturation limit.Which of the following is a possible property of the process?

Accepted Answer

A) energy-dependent 
B) carrier-mediated 
C) cotransport 
D) active transport 
E) All of the answers are correct. 
A) energy-dependent 
B) carrier-mediated 
C) cotransport 
D) active transport 
E) All of the answers are correct.

Question 4

Cancer cells

Accepted Answer

A) are indistinguishable from normal body cells. 
B) have a slow mitotic rate. 
C) may exhibit metastasis. 
D) do not form neoplasms. 
E) generally form benign tumors. 
A) are indistinguishable from normal body cells. 
B) have a slow mitotic rate. 
C) may exhibit metastasis. 
D) do not form neoplasms. 
E) generally form benign tumors.

Question 5

The process by which cells become specialized is called

Accepted Answer

A) determination. 
B) cytokinesis. 
C) mutation. 
D) differentiation. 
E) distinction. 
A) determination. 
B) cytokinesis. 
C) mutation. 
D) differentiation. 
E) distinction.

Question 6

Match the organelle (1-4)with the correct description (5-8).
1)mitochondrion 5.intracellular transport
2)centriole 6.liquid in cell
3)endoplasmic reticulum 7.provides cell energy
4)cytosol 8.aids the formation of the spindle apparatus

Accepted Answer

A) 1 and 7,2 and 6,3 and 8,4 and 5 
B) 1 and 8,2 and 5,3 and 6,4 and 7 
C) 1 and 7,2 and 8,3 and 5,4 and 6 
D) 1 and 5,2 and 6,3 and 7,4 and 8 
E) 1 and 6,2 and 8,3 and 5,4 and 7 
A) 1 and 7,2 and 6,3 and 8,4 and 5 
B) 1 and 8,2 and 5,3 and 6,4 and 7 
C) 1 and 7,2 and 8,3 and 5,4 and 6 
D) 1 and 5,2 and 6,3 and 7,4 and 8 
E) 1 and 6,2 and 8,3 and 5,4 and 7

Question 7

Peroxisomes

Accepted Answer

A) contain enzymes that break down hydrogen peroxide. 
B) absorb and break down fatty acids,generating hydrogen peroxide in the process. 
C) are produced from other peroxisomes. 
D) are more abundant in cells with higher metabolic rates. 
E) All of the answers are correct. 
A) contain enzymes that break down hydrogen peroxide. 
B) absorb and break down fatty acids,generating hydrogen peroxide in the process. 
C) are produced from other peroxisomes. 
D) are more abundant in cells with higher metabolic rates. 
E) All of the answers are correct.

Question 8

If the concentration of sodium chloride in the interstitial fluid surrounding cells decreases and the concentration of other solutes remains constant,

Accepted Answer

A) the cells will shrink. 
B) the cells will swell. 
C) the fluid outside of the cells will become isotonic. 
D) the fluid outside of the cells will become hypertonic. 
E) the cells will not change. 
A) the cells will shrink. 
B) the cells will swell. 
C) the fluid outside of the cells will become isotonic. 
D) the fluid outside of the cells will become hypertonic. 
E) the cells will not change.

Question 9

Receptor molecules on the surface of cells bind specific molecules called,in general,

Accepted Answer

A) recognizers. 
B) binders. 
C) ligands. 
D) bonders. 
E) reactants. 
A) recognizers. 
B) binders. 
C) ligands. 
D) bonders. 
E) reactants.

Question 10

The nucleus is surrounded by the

Accepted Answer

A) plasma membrane. 
B) membranous sac. 
C) phospholipid bilayer. 
D) nuclear envelope. 
E) chromosome shield. 
A) plasma membrane. 
B) membranous sac. 
C) phospholipid bilayer. 
D) nuclear envelope. 
E) chromosome shield.

Question 11

The components of ribosomes are formed within

Accepted Answer

A) the endoplasmic reticulum. 
B) Golgi complexes. 
C) lysosomes. 
D) mitochondria. 
E) nucleoli. 
A) the endoplasmic reticulum. 
B) Golgi complexes. 
C) lysosomes. 
D) mitochondria. 
E) nucleoli.

Question 12

The control center for cellular operations is the

Accepted Answer

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

Question 13

Functions of the plasma membrane include all of the following except

Accepted Answer

A) separation of the cytoplasm from the extracellular fluid. 
B) regulation of exchange of materials with the extracellular environment. 
C) sensitivity to chemical changes in the extracellular fluid. 
D) thermal insulation. 
E) structural support. 
A) separation of the cytoplasm from the extracellular fluid. 
B) regulation of exchange of materials with the extracellular environment. 
C) sensitivity to chemical changes in the extracellular fluid. 
D) thermal insulation. 
E) structural support.

Question 14

The ________ of a cell membrane indicates how easy it is for substances to cross.

Accepted Answer

A) thickness 
B) pliability 
C) density 
D) permeability 
E) charge 
A) thickness 
B) pliability 
C) density 
D) permeability 
E) charge

Question 15

The correct order of phases in cell division is

Accepted Answer

A) prophase,interphase,anaphase,metaphase,and telophase. 
B) telophase,anaphase,metaphase,interphase,and prophase. 
C) interphase,prophase,anaphase,metaphase,and telophase. 
D) interphase,prophase,metaphase,anaphase,and telophase. 
E) metaphase,anaphase,interphase,prophase,and telophase. 
A) prophase,interphase,anaphase,metaphase,and telophase. 
B) telophase,anaphase,metaphase,interphase,and prophase. 
C) interphase,prophase,anaphase,metaphase,and telophase. 
D) interphase,prophase,metaphase,anaphase,and telophase. 
E) metaphase,anaphase,interphase,prophase,and telophase.

Question 16

Figure 3-1 The Anatomy of a Representative Cell
Use Figure 3-1 to answer the following questions:
-Which organelle renews the cell membrane and modifies and packages proteins for secretion?

Accepted Answer

A) 4 
B) 5 
C) 6 
D) 7 
E) 8 
A) 4 
B) 5 
C) 6 
D) 7 
E) 8

Question 17

Ribosomes are composed of protein and

Accepted Answer

A) glycogen. 
B) rRNA. 
C) ATP. 
D) DNA 
E) steroids. 
A) glycogen. 
B) rRNA. 
C) ATP. 
D) DNA 
E) steroids.

Question 18

The movement of oxygen from an area of high concentration to an area of low concentration is an example of

Accepted Answer

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

Question 19

How would an inhibitor of the sodium-potassium exchange pump affect the resting potential?

Accepted Answer

The maintenance of a proper resting pote

Question 20

Most of the ATP required to power cellular operations is produced in the

Accepted Answer

A) cytoplasm. 
B) endoplasmic reticulum. 
C) nucleus. 
D) mitochondria. 
E) cilia. 
A) cytoplasm. 
B) endoplasmic reticulum. 
C) nucleus. 
D) mitochondria. 
E) cilia.

Exam 3: The Cellular Level of Organization

A gene is a set of specific instructions that

A)What are the similarities between facilitated diffusion and active transport? B)What are the differences?

A membrane transport process is found experimentally to have a saturation limit.Which of the following is a possible property of the process?

Cancer cells

The process by which cells become specialized is called

Match the organelle (1-4)with the correct description (5-8). 1)mitochondrion 5.intracellular transport 2)centriole 6.liquid in cell 3)endoplasmic reticulum 7.provides cell energy 4)cytosol 8.aids the formation of the spindle apparatus

Peroxisomes

If the concentration of sodium chloride in the interstitial fluid surrounding cells decreases and the concentration of other solutes remains constant,

Receptor molecules on the surface of cells bind specific molecules called,in general,

The nucleus is surrounded by the

The components of ribosomes are formed within

The control center for cellular operations is the

Functions of the plasma membrane include all of the following except

The ________ of a cell membrane indicates how easy it is for substances to cross.

The correct order of phases in cell division is

Figure 3-1 The Anatomy of a Representative Cell Use Figure 3-1 to answer the following questions: -Which organelle renews the cell membrane and modifies and packages proteins for secretion?

Ribosomes are composed of protein and

The movement of oxygen from an area of high concentration to an area of low concentration is an example of

How would an inhibitor of the sodium-potassium exchange pump affect the resting potential?

Most of the ATP required to power cellular operations is produced in the

An Introduction to Anatomy and Physiology

The Chemical Level of Organization

The Tissue Level of Organization

The Integumentary System

Osseous Tissue and Bone Structure

The Axial Skeleton

The Appendicular Skeleton

Joints

Muscle Tissue

The Muscular System

Neural Tissue

The Spinal Cord, spinal Nerves, and Spinal Reflexes

The Brain and Cranial Nerves

Sensory Pathways and the Somatic Nervous System

The Autonomic Nervous System and Higher-Order Functions

The Special Senses

The Endocrine System

Blood

The Heart

Blood Vessels and Circulation

The Lymphatic System and Immunity

The Respiratory System

The Digestive System

Metabolism and Energetics

The Urinary System

Fluid, electrolyte, and Acid-Base Balance

The Reproductive System

Development and Inheritance

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