Question 1

Epithelial cells have a polarity dealing with transport.

Accepted Answer

A) True 
 B)False

Question 2

Which of the following cells do NOT normally have many aquaporins in their plasma membranes?

Accepted Answer

A) kidneys 
B) lungs 
C) salivary glands 
D) skin 
A) kidneys 
B) lungs 
C) salivary glands 
D) skin

Question 3

Which regulatory molecule cannot enter its target cell?

Accepted Answer

A) epinephrine 
B) acetylcholine 
C) nitric oxide 
D) epinephrine AND acetylcholine 
A) epinephrine 
B) acetylcholine 
C) nitric oxide 
D) epinephrine AND acetylcholine

Question 4

Active transport carriers are also called

Accepted Answer

A) vesicles. 
B) channels. 
C) pumps. 
D) receptors. 
A) vesicles. 
B) channels. 
C) pumps. 
D) receptors.

Question 5

Simple diffusion is the net diffusion of a solvent.

Accepted Answer

A) True 
 B)False

Question 6

Which of the following is NOT a G-protein?

Accepted Answer

A) alpha 
B) beta 
C) delta 
D) gamma 
A) alpha 
B) beta 
C) delta 
D) gamma

Question 7

How much of the extracellular fluid comes from blood plasma?

Accepted Answer

A) 33% 
B) 92% 
C) 20% 
D) 50% 
A) 33% 
B) 92% 
C) 20% 
D) 50%

Question 8

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 9

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 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

The osmolality of plasma is

Accepted Answer

A) 0.3 Osm. 
B) 0.1 Osm. 
C) 1.0 Osm. 
D) 2.0 Osm. 
A) 0.3 Osm. 
B) 0.1 Osm. 
C) 1.0 Osm. 
D) 2.0 Osm.

Question 12

Hyperkalemia would ____________ the resting membrane potential of the cell.

Accepted Answer

A) increase 
B) decrease 
C) have no effect on 
A) increase 
B) decrease 
C) have no effect on

Question 13

What type of cell signaling occurs through the extracellular matrix to nearby target cells?

Accepted Answer

A) endocrine signaling 
B) synaptic signaling 
C) gap junctions 
D) paracrine signaling 
A) endocrine signaling 
B) synaptic signaling 
C) gap junctions 
D) paracrine signaling

Question 14

What type of cell signaling uses chemicals called neurotransmitters to innervate its target organ?

Accepted Answer

A) synaptic signaling 
B) paracrine signaling 
C) endocrine signaling 
D) gap junctions 
A) synaptic signaling 
B) paracrine signaling 
C) endocrine signaling 
D) gap junctions

Question 15

The transport of molecules out of the urinary filtrate and into the blood is called

Accepted Answer

A) absorption. 
B) reabsorption. 
C) countertransport. 
D) symport. 
A) absorption. 
B) reabsorption. 
C) countertransport. 
D) symport.

Question 16

Where is the receptor for a nonpolar,lipid-soluble regulatory molecule?

Accepted Answer

A) embedded in the outer surface of the plasma membrane 
B) embedded in the inner surface of the plasma membrane 
C) in the cytoplasm or nucleus of the cell 
D) All apply. 
A) embedded in the outer surface of the plasma membrane 
B) embedded in the inner surface of the plasma membrane 
C) in the cytoplasm or nucleus of the cell 
D) All apply.

Question 17

The Na+/K+ pump

Accepted Answer

A) establishes equilibrium concentrations of sodium and potassium ions. 
B) is an electrogenic pump. 
C) is an example of secondary active transport. 
D) interferes with glucose transport. 
A) establishes equilibrium concentrations of sodium and potassium ions. 
B) is an electrogenic pump. 
C) is an example of secondary active transport. 
D) interferes with glucose transport.

Question 18

Osmosis and simple diffusion do NOT require the actions of carrier proteins.

Accepted Answer

A) True 
 B)False

Question 19

Desmosomes are a type of junctional complex.

Accepted Answer

A) True 
 B)False

Question 20

Most cells have a resting membrane potential between

Accepted Answer

A) +60mV and -90mV. 
B) -60mV and -90mV. 
C) -65mV and -85mV. 
D) +65mV and +90mV. 
A) +60mV and -90mV. 
B) -60mV and -90mV. 
C) -65mV and -85mV. 
D) +65mV and +90mV.

Epithelial cells have a polarity dealing with transport.

Which of the following cells do NOT normally have many aquaporins in their plasma membranes?

Which regulatory molecule cannot enter its target cell?

Active transport carriers are also called

Simple diffusion is the net diffusion of a solvent.

Which of the following is NOT a G-protein?

How much of the extracellular fluid comes from blood plasma?

The Na⁺/K⁺ pump

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

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

The osmolality of plasma is

Hyperkalemia would ____________ the resting membrane potential of the cell.

What type of cell signaling occurs through the extracellular matrix to nearby target cells?

What type of cell signaling uses chemicals called neurotransmitters to innervate its target organ?

The transport of molecules out of the urinary filtrate and into the blood is called

Where is the receptor for a nonpolar,lipid-soluble regulatory molecule?

The Na⁺/K⁺ pump

Osmosis and simple diffusion do NOT require the actions of carrier proteins.

Desmosomes are a type of junctional complex.

Most cells have a resting membrane potential between

The Study of Body Function

Chemical Composition of the Body

Cell Structure and Genetic Control

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

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Exam 6: Interactions Between Cells and the Extracellular Environment

Epithelial cells have a polarity dealing with transport.

Which of the following cells do NOT normally have many aquaporins in their plasma membranes?

Which regulatory molecule cannot enter its target cell?

Active transport carriers are also called

Simple diffusion is the net diffusion of a solvent.

Which of the following is NOT a G-protein?

How much of the extracellular fluid comes from blood plasma?

The Na+/K+ pump

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

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

The osmolality of plasma is

Hyperkalemia would ____________ the resting membrane potential of the cell.

What type of cell signaling occurs through the extracellular matrix to nearby target cells?

What type of cell signaling uses chemicals called neurotransmitters to innervate its target organ?

The transport of molecules out of the urinary filtrate and into the blood is called

Where is the receptor for a nonpolar,lipid-soluble regulatory molecule?

The Na+/K+ pump

Osmosis and simple diffusion do NOT require the actions of carrier proteins.

Desmosomes are a type of junctional complex.

Most cells have a resting membrane potential between

The Study of Body Function

Chemical Composition of the Body

Cell Structure and Genetic Control

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 Na⁺/K⁺ pump

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

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

The Na⁺/K⁺ pump