Question 1

Cells placed in hypotonic solutions will

Accepted Answer

A) decrease in volume. 
B) increase intracellular solute concentration. 
C) increase in volume. 
D) lose water to the solution. 
A) decrease in volume. 
B) increase intracellular solute concentration. 
C) increase in volume. 
D) lose water to the solution.

Question 2

80% of the extracellular fluid is termed interstitial fluid.

Accepted Answer

A) True 
 B)False

Question 3

What molecules pass information from the polar regulatory molecule receptor to activate the enzymes that produce cAMP?

Accepted Answer

A) paracrines 
B) G-proteins 
C) GTP 
D) None of these choices are correct. 
A) paracrines 
B) G-proteins 
C) GTP 
D) None of these choices are correct.

Question 4

Where are GLUT carriers located in an unstimulated muscle?

Accepted Answer

A) in the plasma membrane facing the external environment 
B) in the plasma membrane facing the internal environment 
C) within cytoplasmic vesicles 
D) There are no GLUT carriers present. 
A) in the plasma membrane facing the external environment 
B) in the plasma membrane facing the internal environment 
C) within cytoplasmic vesicles 
D) There are no GLUT carriers present.

Question 5

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 6

Simple diffusion is the net diffusion of a solvent.

Accepted Answer

A) True 
 B)False

Question 7

Poisoning the Na+/K+ pump would cause the volume of the cell to __________.

Accepted Answer

A) increase 
B) decrease 
C) remain the same 
A) increase 
B) decrease 
C) remain the same

Question 8

Glucose transported via the GLUT carrier is characterized as

Accepted Answer

A) active transport. 
B) passive transport. 
C) co-transport. 
D) receptor-mediated endocytosis. 
A) active transport. 
B) passive transport. 
C) co-transport. 
D) receptor-mediated endocytosis.

Question 9

What is necessary for a target cell to respond to a cell signaling molecule?

Accepted Answer

A) being close together 
B) a second messenger 
C) specific receptor proteins 
D) All of these choices are necessary. 
A) being close together 
B) a second messenger 
C) specific receptor proteins 
D) All of these choices are necessary.

Question 10

The Na+/K+ pump transports _______ into the cell and ________ out of the cell per cycle.

Accepted Answer

A) 3Na+,2K+ 
B) 2Na+,3K+ 
C) 3K+,2Na+ 
D) 2K+,3Na+ 
A) 3Na+,2K+ 
B) 2Na+,3K+ 
C) 3K+,2Na+ 
D) 2K+,3Na+

Question 11

Why are cells in body organs generally within 100 $\mu$m of a blood capillary?

Accepted Answer

A) to decrease mean diffusion time 
B) to increase mean diffusion time 
C) so that larger particles can diffuse more easily 
D) a larger distance maximizes entropy 
A) to decrease mean diffusion time 
B) to increase mean diffusion time 
C) so that larger particles can diffuse more easily 
D) a larger distance maximizes entropy

Question 12

The rate of diffusion is influenced by

Accepted Answer

A) the concentration gradient. 
B) membrane permeability. 
C) membrane surface area. 
D) All of these choices are correct. 
A) the concentration gradient. 
B) membrane permeability. 
C) membrane surface area. 
D) All of these choices are correct.

Question 13

Diffusion is more rapid in cells with microvilli compared to cells lacking microvilli.

Accepted Answer

A) True 
 B)False

Question 14

____________ transport does not require membrane proteins.

Accepted Answer

A) Facilitated diffusion 
B) Bulk 
C) Simple diffusion 
D) Active 
A) Facilitated diffusion 
B) Bulk 
C) Simple diffusion 
D) Active

Question 15

Desmosomes are a type of junctional complex.

Accepted Answer

A) True 
 B)False

Question 16

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

Accepted Answer

A) True 
 B)False

Question 17

A 0.5M glucose (molecular weight = 180g)contains ____________ grams of glucose per liter.

Accepted Answer

A) 90 
B) 180 
C) 6.02* 1023 
D) 360 
A) 90 
B) 180 
C) 6.02* 1023 
D) 360

Question 18

The charge difference across a membrane produces the membrane potential.

Accepted Answer

A) True 
 B)False

Question 19

Poisoning the Na+/K+ pump would

Accepted Answer

A) generate a more negative membrane potential. 
B) increase cellular permeability to Na+. 
C) inhibit secondary active transport. 
D) increase cellular permeability to K+. 
A) generate a more negative membrane potential. 
B) increase cellular permeability to Na+. 
C) inhibit secondary active transport. 
D) increase cellular permeability to K+.

Question 20

One mole of solute per liter depresses the freezing point of water by -1.86$\circ$C.

Accepted Answer

A) True 
 B)False

Cells placed in hypotonic solutions will

80% of the extracellular fluid is termed interstitial fluid.

What molecules pass information from the polar regulatory molecule receptor to activate the enzymes that produce cAMP?

Where are GLUT carriers located in an unstimulated muscle?

The Na⁺/K⁺ pump

Simple diffusion is the net diffusion of a solvent.

Poisoning the Na⁺/K⁺ pump would cause the volume of the cell to __________.

Glucose transported via the GLUT carrier is characterized as

What is necessary for a target cell to respond to a cell signaling molecule?

The Na⁺/K⁺ pump transports _ into the cell and __ out of the cell per cycle.

Why are cells in body organs generally within 100 $\mu$ m of a blood capillary?

The rate of diffusion is influenced by

Diffusion is more rapid in cells with microvilli compared to cells lacking microvilli.

____________ transport does not require membrane proteins.

Desmosomes are a type of junctional complex.

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

A 0.5M glucose (molecular weight = 180g)contains ____________ grams of glucose per liter.

The charge difference across a membrane produces the membrane potential.

Poisoning the Na⁺/K⁺ pump would

One mole of solute per liter depresses the freezing point of water by -1.86^$\circ$C.

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 of Metabolism

Reproduction

Filters

Exam 6: Interactions Between Cells and the Extracellular Environment

Cells placed in hypotonic solutions will

80% of the extracellular fluid is termed interstitial fluid.

What molecules pass information from the polar regulatory molecule receptor to activate the enzymes that produce cAMP?

Where are GLUT carriers located in an unstimulated muscle?

The Na+/K+ pump

Simple diffusion is the net diffusion of a solvent.

Poisoning the Na+/K+ pump would cause the volume of the cell to __________.

Glucose transported via the GLUT carrier is characterized as

What is necessary for a target cell to respond to a cell signaling molecule?

The Na+/K+ pump transports _______ into the cell and ________ out of the cell per cycle.

Why are cells in body organs generally within 100 μ\muμ m of a blood capillary?

The rate of diffusion is influenced by

Diffusion is more rapid in cells with microvilli compared to cells lacking microvilli.

____________ transport does not require membrane proteins.

Desmosomes are a type of junctional complex.

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

A 0.5M glucose (molecular weight = 180g)contains ____________ grams of glucose per liter.

The charge difference across a membrane produces the membrane potential.

Poisoning the Na+/K+ pump would

One mole of solute per liter depresses the freezing point of water by -1.86 ∘\circ∘ C.

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 of Metabolism

Reproduction

Filters

The Na⁺/K⁺ pump

Poisoning the Na⁺/K⁺ pump would cause the volume of the cell to __________.

The Na⁺/K⁺ pump transports _ into the cell and __ out of the cell per cycle.

Why are cells in body organs generally within 100 $\mu$ m of a blood capillary?

Poisoning the Na⁺/K⁺ pump would

One mole of solute per liter depresses the freezing point of water by -1.86^$\circ$C.