Question 1

Which of the labeled cellular structures are involved in metabolic activity that produces energy for the cell?

Accepted Answer

A) 10 
B) 6 
C) 5 
D) 11 
E) 8 
A) 10 
B) 6 
C) 5 
D) 11 
E) 8

Question 2

Protein production is a function of the

Accepted Answer

A) microtubules. 
B) mitochondria. 
C) rough ER. 
D) ribosomes. 
E) Golgi apparatus. 
A) microtubules. 
B) mitochondria. 
C) rough ER. 
D) ribosomes. 
E) Golgi apparatus.

Question 3

Structurally,the plasma membrane

Accepted Answer

A) contains no imbedded proteins. 
B) separates the chromatin from the cytoplasm in eukaryotes. 
C) contains carbohydrate molecules only. 
D) is nonporous. 
E) is composed of a bilayer of lipids. 
A) contains no imbedded proteins. 
B) separates the chromatin from the cytoplasm in eukaryotes. 
C) contains carbohydrate molecules only. 
D) is nonporous. 
E) is composed of a bilayer of lipids.

Question 4

How does facilitated diffusion differ from simple diffusion?

Accepted Answer

A) Facilitated diffusion expends no ATP. 
B) Facilitated diffusion moves molecules from an area of higher concentration to lower concentration. 
C) The rate of solute transport cannot increase indefinitely in facilitated diffusion. 
D) The concentration gradient is never eliminated in facilitated diffusion. 
E) Facilitated diffusion is independent of carrier molecules. 
A) Facilitated diffusion expends no ATP. 
B) Facilitated diffusion moves molecules from an area of higher concentration to lower concentration. 
C) The rate of solute transport cannot increase indefinitely in facilitated diffusion. 
D) The concentration gradient is never eliminated in facilitated diffusion. 
E) Facilitated diffusion is independent of carrier molecules.

Question 5

The smallest living things are

Accepted Answer

A) proteins. 
B) organ systems. 
C) tissues. 
D) organs. 
E) cells. 
A) proteins. 
B) organ systems. 
C) tissues. 
D) organs. 
E) cells.

Question 6

Immersion of red blood cells into a(n)________ solution results in lysis of the cell.

Accepted Answer

A) isotonic 
B) hypertonic 
C) hypotonic 
D) monotonic 
E) equilibrated 
A) isotonic 
B) hypertonic 
C) hypotonic 
D) monotonic 
E) equilibrated

Question 7

When activated,lysosomes may function in

Accepted Answer

A) the formation of new cell membranes. 
B) the synthesis of proteins. 
C) autolysis. 
D) the synthesis of lipids. 
E) cell division. 
A) the formation of new cell membranes. 
B) the synthesis of proteins. 
C) autolysis. 
D) the synthesis of lipids. 
E) cell division.

Question 8

The movement of a molecule from an area of high concentration to an area of low concentration by interacting with a carrier protein is an example of

Accepted Answer

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

Question 9

Membrane-bound proteins that allow identification of a cell as "self" or "nonself" are called ________ proteins.

Accepted Answer

A) integral 
B) recognition 
C) carrier 
D) peripheral 
E) channel 
A) integral 
B) recognition 
C) carrier 
D) peripheral 
E) channel

Question 10

Identify the phase of cell division in which the nuclear envelope disappears and the chromatids become attached to the spindle fibers.

Accepted Answer

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

Question 11

One function of the nucleolus is to assemble

Accepted Answer

A) microtubules. 
B) ribosomal subunits. 
C) DNA. 
D) lysosomes. 
E) histones. 
A) microtubules. 
B) ribosomal subunits. 
C) DNA. 
D) lysosomes. 
E) histones.

Question 12

During which process do DNA strands unwind and DNA polymerase begin attaching complementary DNA nucleotides along each strand?

Accepted Answer

A) replication 
B) mitosis 
C) transcription 
D) mutation 
E) translation 
A) replication 
B) mitosis 
C) transcription 
D) mutation 
E) translation

Question 13

As a result of cell damage,or in the event that a cell converts into a cancer cell,the immune system may set a chain of events in motion that cause the cell to kill itself.This is called

Accepted Answer

A) immolation. 
B) peptidation. 
C) cytokinesis. 
D) exocytosis. 
E) apoptosis. 
A) immolation. 
B) peptidation. 
C) cytokinesis. 
D) exocytosis. 
E) apoptosis.

Question 14

The process by which cells become specialized is called

Accepted Answer

A) differentiation. 
B) mutation. 
C) growth. 
D) synthesis. 
E) mitosis. 
A) differentiation. 
B) mutation. 
C) growth. 
D) synthesis. 
E) mitosis.

Question 15

A mechanism in which two substances move in opposite directions across the cell membrane is called

Accepted Answer

A) facilitated diffusion. 
B) vesicular transport. 
C) endocytosis. 
D) countertransport. 
E) osmosis. 
A) facilitated diffusion. 
B) vesicular transport. 
C) endocytosis. 
D) countertransport. 
E) osmosis.

Question 16

DNA contains the nucleotide thymine,but RNA uniquely contains ________,which is complementary to adenine.

Accepted Answer

A) uracil 
B) guanine 
C) thymidine 
D) cytosine 
E) adenine 
A) uracil 
B) guanine 
C) thymidine 
D) cytosine 
E) adenine

Question 17

Which statement is true about cancer and cancer cells?

Accepted Answer

A) Cancer cells use more oxygen and nutrients than normal cells. 
B) Normal cells do not become cancer cells. 
C) Benign cancers do not kill the host. 
D) Malignant cancer cells directly kill normal cells by producing toxins. 
E) Cancer cells undergo mitosis at a slower rate than normal cells. 
A) Cancer cells use more oxygen and nutrients than normal cells. 
B) Normal cells do not become cancer cells. 
C) Benign cancers do not kill the host. 
D) Malignant cancer cells directly kill normal cells by producing toxins. 
E) Cancer cells undergo mitosis at a slower rate than normal cells.

Question 18

Using the preceding image,determine the correct sequence of events in the primary process,which begins when target molecules (ligands)bind to receptors in the plasma membrane. 1.Target molecules are removed and absorbed into the cytoplasm.
2.The membrane containing the receptor molecules detaches from the lysosome.
3.Pockets pinch off,forming coated vesicles.
4.Areas coated with ligands form deep pockets in the membrane surface.
5.The vesicle fuses with the plasma membrane.
6.Coated vesicles fuse with lysosomes.

Accepted Answer

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

Question 19

The folds of the internal membrane within mitochondria are called

Accepted Answer

A) cristae. 
B) cytosol. 
C) cisternae. 
D) matrix. 
E) histones. 
A) cristae. 
B) cytosol. 
C) cisternae. 
D) matrix. 
E) histones.

Question 20

Due to exposure to a chemical,a compound other than the correct structure #3 has been inserted into the DNA strand during replication.This could result in

Accepted Answer

A) blocking mitotic division of the cells. 
B) changing the protein coded for by the DNA segment. 
C) inhibiting the cells from performing cell respiration. 
D) preventing the cell from making ATP. 
E) making the enzyme DNA polymerase. 
A) blocking mitotic division of the cells. 
B) changing the protein coded for by the DNA segment. 
C) inhibiting the cells from performing cell respiration. 
D) preventing the cell from making ATP. 
E) making the enzyme DNA polymerase.

Which of the labeled cellular structures are involved in metabolic activity that produces energy for the cell?

Protein production is a function of the

Structurally,the plasma membrane

How does facilitated diffusion differ from simple diffusion?

The smallest living things are

Immersion of red blood cells into a(n)________ solution results in lysis of the cell.

When activated,lysosomes may function in

The movement of a molecule from an area of high concentration to an area of low concentration by interacting with a carrier protein is an example of

Membrane-bound proteins that allow identification of a cell as "self" or "nonself" are called ________ proteins.

Identify the phase of cell division in which the nuclear envelope disappears and the chromatids become attached to the spindle fibers.

One function of the nucleolus is to assemble

During which process do DNA strands unwind and DNA polymerase begin attaching complementary DNA nucleotides along each strand?

As a result of cell damage,or in the event that a cell converts into a cancer cell,the immune system may set a chain of events in motion that cause the cell to kill itself.This is called

The process by which cells become specialized is called

A mechanism in which two substances move in opposite directions across the cell membrane is called

DNA contains the nucleotide thymine,but RNA uniquely contains ________,which is complementary to adenine.

Which statement is true about cancer and cancer cells?

The folds of the internal membrane within mitochondria are called

Due to exposure to a chemical,a compound other than the correct structure #3 has been inserted into the DNA strand during replication.This could result in

An Introduction to Anatomy and Physiology

The Chemical Level of Organization

The Tissue Level of Organization

The Integumentary System

The Skeletal System

The Muscular System

The Nervous System

The General and Special Senses

The Endocrine System

The Cardiovascular System: Blood

The Cardiovascular System: the Heart

The Cardiovascular System: Blood Vessels and Circulation

The Lymphatic System and Immunity

The Respiratory System

The Digestive System

Metabolism and Energetics

The Urinary System

The Reproductive System

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Exam 3: Cell Structure and Function

Which of the labeled cellular structures are involved in metabolic activity that produces energy for the cell?

Protein production is a function of the

Structurally,the plasma membrane

How does facilitated diffusion differ from simple diffusion?

The smallest living things are

Immersion of red blood cells into a(n)________ solution results in lysis of the cell.

When activated,lysosomes may function in

The movement of a molecule from an area of high concentration to an area of low concentration by interacting with a carrier protein is an example of

Membrane-bound proteins that allow identification of a cell as "self" or "nonself" are called ________ proteins.

Identify the phase of cell division in which the nuclear envelope disappears and the chromatids become attached to the spindle fibers.

One function of the nucleolus is to assemble

During which process do DNA strands unwind and DNA polymerase begin attaching complementary DNA nucleotides along each strand?

As a result of cell damage,or in the event that a cell converts into a cancer cell,the immune system may set a chain of events in motion that cause the cell to kill itself.This is called

The process by which cells become specialized is called

A mechanism in which two substances move in opposite directions across the cell membrane is called

DNA contains the nucleotide thymine,but RNA uniquely contains ________,which is complementary to adenine.

Which statement is true about cancer and cancer cells?

The folds of the internal membrane within mitochondria are called

Due to exposure to a chemical,a compound other than the correct structure #3 has been inserted into the DNA strand during replication.This could result in

An Introduction to Anatomy and Physiology

The Chemical Level of Organization

The Tissue Level of Organization

The Integumentary System

The Skeletal System

The Muscular System

The Nervous System

The General and Special Senses

The Endocrine System

The Cardiovascular System: Blood

The Cardiovascular System: the Heart

The Cardiovascular System: Blood Vessels and Circulation

The Lymphatic System and Immunity

The Respiratory System

The Digestive System

Metabolism and Energetics

The Urinary System

The Reproductive System

Development and Inheritance

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