Question 1

The process by which molecules such as glucose are moved into cells along their concentration gradient with the help of membrane-bound carrier proteins is called

Accepted Answer

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

Question 2

Synthesis of lipids and glycogen takes place at the

Accepted Answer

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

Question 3

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

Accepted Answer

A)  isotonic 
B)  hypertonic 
C)  hypotonic 
D)  merotonic 
E)  homotonic 
A)  isotonic 
B)  hypertonic 
C)  hypotonic 
D)  merotonic 
E)  homotonic B

Question 4

The components of ribosomes are synthesized by

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 5

Imagine two rigid chambers separated by a rigid membrane that is freely permeable to water but impermeable to glucose. Side 1 contains a 10 percent glucose solution and side 2 contains pure water. At equilibrium, what will be the situation?

Accepted Answer

A)  Water will continue to move from side 1 to side 2. 
B)  Water will continue to move from side 2 to side 1. 
C)  The hydrostatic pressure will be higher in side 1. 
D)  The hydrostatic pressure will be higher in side 2. 
E)  There is no way to tell what the situation will be. 
A)  Water will continue to move from side 1 to side 2. 
B)  Water will continue to move from side 2 to side 1. 
C)  The hydrostatic pressure will be higher in side 1. 
D)  The hydrostatic pressure will be higher in side 2. 
E)  There is no way to tell what the situation will be.

Question 6

In order to maintain cellular homeostasis, an exchange pump ejects ________ ions from the cell and imports ________ ions.

Accepted Answer

A)  potassium; calcium 
B)  sodium; calcium 
C)  potassium; sodium 
D)  sodium; potassium 
E)  calcium; sodium 
A)  potassium; calcium 
B)  sodium; calcium 
C)  potassium; sodium 
D)  sodium; potassium 
E)  calcium; sodium

Question 7

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 8

During kidney dialysis, a person's blood is passed through a bath that contains several ions and molecules. The blood is separated from the dialysis fluid by a membrane that allows water, small ions, and small molecules to pass, but does not allow large proteins or blood cells to pass. What should the composition of dialysis fluid be for it to remove urea (a small molecule) without changing the blood volume (removing water from the blood)?

Accepted Answer

For the dialysis fluid to remove urea wi

Question 9

A malignant neoplasm is often called a(n) ________.

Accepted Answer

The answer of A malignant neoplasm is often called a(n)...

Question 10

The smallest living unit within the human body is

Accepted Answer

A)  a protein. 
B)  the cell. 
C)  a tissue. 
D)  an organ. 
E)  an organ system. 
A)  a protein. 
B)  the cell. 
C)  a tissue. 
D)  an organ. 
E)  an organ system.

Question 11

A molecule of ________ contains all the codons needed to produce a particular polypeptide.

Accepted Answer

The answer of A molecule of ________ contains all the...

Question 12

Figure 3-1
Use Figure 3-1 to answer the following questions
-Which structure has a "gate" to control transport?

Accepted Answer

A)  1 
B)  2 
C)  4 
D)  7 
E)  8 
A)  1 
B)  2 
C)  4 
D)  7 
E)  8

Question 13

Membrane-bound proteins that use metabolic energy to move ions across the plasma membrane are called ________.

Accepted Answer

The answer of Membrane-bound proteins that use metabolic energy to...

Question 14

Write out the term for mRNA.

Accepted Answer

messenger

Question 15

Which of following properties of the cytoskeleton is False ?

Accepted Answer

A)  supports organelles 
B)  controls cell shape 
C)  provides cell strength 
D)  made of cytobones 
E)  moves organelles 
A)  supports organelles 
B)  controls cell shape 
C)  provides cell strength 
D)  made of cytobones 
E)  moves organelles

Question 16

Peroxisomes

Accepted Answer

A)  contain enzymes that break down toxic substances. 
B)  absorb and break down fatty acids, generating toxic substances in the process. 
C)  is another name for lysosomes. 
D)  both contain enzymes that break down toxic substances, and absorb and break down fatty acids, generating toxic substances in the process. 
E)  none of the above 
A)  contain enzymes that break down toxic substances. 
B)  absorb and break down fatty acids, generating toxic substances in the process. 
C)  is another name for lysosomes. 
D)  both contain enzymes that break down toxic substances, and absorb and break down fatty acids, generating toxic substances in the process. 
E)  none of the above

Question 17

In the mitochondrion, folds are to cristae as the contained fluid is to

Accepted Answer

A)  actin. 
B)  microvilli. 
C)  cytosol. 
D)  basal body. 
E)  matrix. 
A)  actin. 
B)  microvilli. 
C)  cytosol. 
D)  basal body. 
E)  matrix.

Question 18

During mitosis, two daughter cells form, each of which has

Accepted Answer

A)  a different number of chromosomes than the original cell. 
B)  twice as many chromosomes as the original cell. 
C)  the same number of chromosomes as the original cell. 
D)  a lesser number of chromosomes than the original cell. 
E)  half as many chromosomes as the original cell. 
A)  a different number of chromosomes than the original cell. 
B)  twice as many chromosomes as the original cell. 
C)  the same number of chromosomes as the original cell. 
D)  a lesser number of chromosomes than the original cell. 
E)  half as many chromosomes as the original cell.

Question 19

Examination of a sample of glandular cells reveals an extensive network of smooth endoplasmic reticulum. Which of the following is the likeliest product of these cells?

Accepted Answer

A)  digestive enzymes 
B)  steroid hormones 
C)  protein hormones 
D)  transport proteins 
E)  antibodies 
A)  digestive enzymes 
B)  steroid hormones 
C)  protein hormones 
D)  transport proteins 
E)  antibodies

Question 20

During the synthesis of proteins, amino acids are assembled in the proper sequence because each tRNA molecule that brings them to the ribosome has a(n) ________ that binds to a complementary codon in the mRNA.

Accepted Answer

The answer of During the synthesis of proteins, amino acids...

Exam 3: Cellular Level of Organization

The process by which molecules such as glucose are moved into cells along their concentration gradient with the help of membrane-bound carrier proteins is called

Synthesis of lipids and glycogen takes place at the

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

The components of ribosomes are synthesized by

Imagine two rigid chambers separated by a rigid membrane that is freely permeable to water but impermeable to glucose. Side 1 contains a 10 percent glucose solution and side 2 contains pure water. At equilibrium, what will be the situation?

In order to maintain cellular homeostasis, an exchange pump ejects ________ ions from the cell and imports ________ ions.

Cancer cells

A malignant neoplasm is often called a(n) ________.

The smallest living unit within the human body is

A molecule of ________ contains all the codons needed to produce a particular polypeptide.

Figure 3-1 Use Figure 3-1 to answer the following questions -Which structure has a "gate" to control transport?

Membrane-bound proteins that use metabolic energy to move ions across the plasma membrane are called ________.

Write out the term for mRNA.

Which of following properties of the cytoskeleton is False ?

Peroxisomes

In the mitochondrion, folds are to cristae as the contained fluid is to

During mitosis, two daughter cells form, each of which has

Examination of a sample of glandular cells reveals an extensive network of smooth endoplasmic reticulum. Which of the following is the likeliest product of these cells?

During the synthesis of proteins, amino acids are assembled in the proper sequence because each tRNA molecule that brings them to the ribosome has a(n) ________ that binds to a complementary codon in the mRNA.

An Introduction to Anatomy and Physiology

Chemical Level of Organization

Tissue Level of Organization

The Integumentary System

Osseous Tissue and Bone Structure

The Skeleton

Articulations

Skeletal Muscle Tissue

The Muscular System

Neural Tissue

The Spinal Cord, Spinal Nerves, and Spinal Reflexes

The Brain and Cranial Nerves

The Autonomic Nervous System

The Special Senses

The Endocrine System

Blood and Blood Vessels

The Heart and Cardiovascular Function

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

Filters

In order to maintain cellular homeostasis, an exchange pump ejects ions from the cell and imports ions.