Question 1

Secondary active transport often occurs as a coupled transport process.

Accepted Answer

A) True 
 B)False

Question 2

Which of the following is NOT a function of integrins?

Accepted Answer

A) glue components of the matrix 
B) communicate between the intracellular and extracellular compartments 
C) allow diffusion to occur through the plasma membrane 
D) establish cell polarity 
A) glue components of the matrix 
B) communicate between the intracellular and extracellular compartments 
C) allow diffusion to occur through the plasma membrane 
D) establish cell polarity

Question 3

What type of intravenous fluid would be given to reduce edema?

Accepted Answer

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

Question 4

The primary intracellular cation is

Accepted Answer

A) Ca2+. 
B) K+. 
C) Mg2+. 
D) Na+. 
A) Ca2+. 
B) K+. 
C) Mg2+. 
D) Na+.

Question 5

The sodium equilibrium potential using an extracellular Na+ concentration of 145 mEq/L and an intracellular concentration of 14 mEq/L would be about

Accepted Answer

A) -90mV. 
B) +62mV. 
C) -62mV. 
D) +90mV. 
A) -90mV. 
B) +62mV. 
C) -62mV. 
D) +90mV.

Question 6

Which of the following is NOT true of hypoglycemia?

Accepted Answer

A) It can result in death. 
B) It may be due to diabetes. 
C) It is characterized by high plasma glucose levels. 
D) It can result in death AND it may be due to diabetes. 
A) It can result in death. 
B) It may be due to diabetes. 
C) It is characterized by high plasma glucose levels. 
D) It can result in death AND it may be due to diabetes.

Question 7

How do small ions like Na+ of K+ pass through the plasma membrane?

Accepted Answer

A) gated channels 
B) ion channels 
C) carrier proteins 
D) simple diffusion 
A) gated channels 
B) ion channels 
C) carrier proteins 
D) simple diffusion

Question 8

Which of the following is NOT a general category of cell signaling molecules?

Accepted Answer

A) endocrine signaling 
B) enzymatic signaling 
C) paracrine signaling 
D) synaptic signaling 
A) endocrine signaling 
B) enzymatic signaling 
C) paracrine signaling 
D) synaptic signaling

Question 9

Where is the G-protein complex when a regulatory molecule is not bound to its receptor?

Accepted Answer

A) The alpha subunit is attached to the inner surface of the receptor. 
B) The three subunits are together but not attached to the inner surface of the receptor. 
C) The three subunits are together AND attached to the inner surface of the receptor. 
D) The beta and gamma subunits are attached to the inner surface of the receptor. 
A) The alpha subunit is attached to the inner surface of the receptor. 
B) The three subunits are together but not attached to the inner surface of the receptor. 
C) The three subunits are together AND attached to the inner surface of the receptor. 
D) The beta and gamma subunits are attached to the inner surface of the receptor.

Question 10

The Na+/K+ pump

Accepted Answer

A) is an example of primary active transport. 
B) generates a positive membrane potential. 
C) actively transports 2 potassium ions out of the cell. 
D) actively transports 3 sodium ions into the cell. 
A) is an example of primary active transport. 
B) generates a positive membrane potential. 
C) actively transports 2 potassium ions out of the cell. 
D) actively transports 3 sodium ions into the cell.

Question 11

Which of the following is NOT true of a person who is dehydrated?

Accepted Answer

A) plasma osmolality increases 
B) hypothalamus stimulates release of ADH 
C) ADH causes the kidneys to excrete water 
D) increased osmolality causes thirst 
A) plasma osmolality increases 
B) hypothalamus stimulates release of ADH 
C) ADH causes the kidneys to excrete water 
D) increased osmolality causes thirst

Question 12

Active transport proteins are often regulated by phosphorylation.

Accepted Answer

A) True 
 B)False

Question 13

A one molal NaCl solution has the same osmolality as a one molal glucose solution.

Accepted Answer

A) True 
 B)False

Question 14

Interstitial fluid is made from blood plasma and returns to blood plasma.

Accepted Answer

A) True 
 B)False

Question 15

Which of the following is NOT true of cyclic AMP?

Accepted Answer

A) It is found on the outside of a plasma membrane. 
B) It is a second messenger for polar regulatory molecules. 
C) It is made from ATP. 
D) It activates enzymes inside a cell to produce the desired effect. 
A) It is found on the outside of a plasma membrane. 
B) It is a second messenger for polar regulatory molecules. 
C) It is made from ATP. 
D) It activates enzymes inside a cell to produce the desired effect.

Question 16

Active transport

Accepted Answer

A) utilizes energy. 
B) cannot transport molecules against a concentration gradient. 
C) cannot be saturated. 
D) requires cofactors. 
A) utilizes energy. 
B) cannot transport molecules against a concentration gradient. 
C) cannot be saturated. 
D) requires cofactors.

Question 17

Epithelial cells have a polarity dealing with transport.

Accepted Answer

A) True 
 B)False

Question 18

Gas exchange between the cells and extracellular fluid utilizes active transport.

Accepted Answer

A) True 
 B)False

Question 19

Because the kidneys are so important for water balance,the plasma membranes of kidney cells have many permanent aquaporins.

Accepted Answer

A) True 
 B)False

Question 20

The transport maximum is related to the property known as

Accepted Answer

A) competition. 
B) saturation. 
C) specificity. 
D) inhibition. 
A) competition. 
B) saturation. 
C) specificity. 
D) inhibition.

Secondary active transport often occurs as a coupled transport process.

Which of the following is NOT a function of integrins?

What type of intravenous fluid would be given to reduce edema?

The primary intracellular cation is

The sodium equilibrium potential using an extracellular Na⁺ concentration of 145 mEq/L and an intracellular concentration of 14 mEq/L would be about

Which of the following is NOT true of hypoglycemia?

How do small ions like Na⁺ of K⁺ pass through the plasma membrane?

Which of the following is NOT a general category of cell signaling molecules?

Where is the G-protein complex when a regulatory molecule is not bound to its receptor?

The Na⁺/K⁺ pump

Which of the following is NOT true of a person who is dehydrated?

Active transport proteins are often regulated by phosphorylation.

A one molal NaCl solution has the same osmolality as a one molal glucose solution.

Interstitial fluid is made from blood plasma and returns to blood plasma.

Which of the following is NOT true of cyclic AMP?

Active transport

Epithelial cells have a polarity dealing with transport.

Gas exchange between the cells and extracellular fluid utilizes active transport.

Because the kidneys are so important for water balance,the plasma membranes of kidney cells have many permanent aquaporins.

The transport maximum is related to the property known as

The Study of Body Function

Chemical Composition of the Body

Cell Structure and Genetic Control

Enzymes and Energy

Cell Respiration and Metabolism

The Nervous System: Neurons and Synapses

The Central Nervous System

The Autonomic Nervous System

Sensory Physiology

Endocrine Glands: Secretion and Action of Hormones

Muscle: Mechanisms of Contraction and Neural Control

Blood,Heart and Circulation

Cardiac Output,Blood Flow,and Blood Pressure

The Immune System

Respiratory Physiology

Physiology of the Kidneys

The Digestive System

Regulation and Metabolism

Reproduction

Filters

Exam 6: Interactions Between Cells and the Extracellular Environment

Secondary active transport often occurs as a coupled transport process.

Which of the following is NOT a function of integrins?

What type of intravenous fluid would be given to reduce edema?

The primary intracellular cation is

The sodium equilibrium potential using an extracellular Na+ concentration of 145 mEq/L and an intracellular concentration of 14 mEq/L would be about

Which of the following is NOT true of hypoglycemia?

How do small ions like Na+ of K+ pass through the plasma membrane?

Which of the following is NOT a general category of cell signaling molecules?

Where is the G-protein complex when a regulatory molecule is not bound to its receptor?

The Na+/K+ pump

Which of the following is NOT true of a person who is dehydrated?

Active transport proteins are often regulated by phosphorylation.

A one molal NaCl solution has the same osmolality as a one molal glucose solution.

Interstitial fluid is made from blood plasma and returns to blood plasma.

Which of the following is NOT true of cyclic AMP?

Active transport

Epithelial cells have a polarity dealing with transport.

Gas exchange between the cells and extracellular fluid utilizes active transport.

Because the kidneys are so important for water balance,the plasma membranes of kidney cells have many permanent aquaporins.

The transport maximum is related to the property known as

The Study of Body Function

Chemical Composition of the Body

Cell Structure and Genetic Control

Enzymes and Energy

Cell Respiration and Metabolism

The Nervous System: Neurons and Synapses

The Central Nervous System

The Autonomic Nervous System

Sensory Physiology

Endocrine Glands: Secretion and Action of Hormones

Muscle: Mechanisms of Contraction and Neural Control

Blood,Heart and Circulation

Cardiac Output,Blood Flow,and Blood Pressure

The Immune System

Respiratory Physiology

Physiology of the Kidneys

The Digestive System

Regulation and Metabolism

Reproduction

Filters

The sodium equilibrium potential using an extracellular Na⁺ concentration of 145 mEq/L and an intracellular concentration of 14 mEq/L would be about

How do small ions like Na⁺ of K⁺ pass through the plasma membrane?

The Na⁺/K⁺ pump