Question 1

Movement of K⁺ into the cell requires energy expenditure, whereas movement of Na⁺ into the cell does not.

Accepted Answer

A) True 
 B)False

Question 2

Products destined for intracellular transport are packaged in ____________________, whereas products for export are packaged in ____________________.

Accepted Answer

coated ves

Question 3

What are the two major parts of a cell's interior

Accepted Answer

A) the intracellular fluid and matrix 
B) the nucleus and plasma membrane 
C) the nucleus and cytoplasm 
D) the DNA and cytoplasm 
A) the intracellular fluid and matrix 
B) the nucleus and plasma membrane 
C) the nucleus and cytoplasm 
D) the DNA and cytoplasm

Question 4

Which one of the following is a function of membrane carbohydrates

Accepted Answer

A) to serve as channels 
B) to determine the fluidity of the membrane 
C) to assist in the aggregation of cells to form tissues 
D) to serve as receptor sites 
A) to serve as channels 
B) to determine the fluidity of the membrane 
C) to assist in the aggregation of cells to form tissues 
D) to serve as receptor sites

Question 5

Match the result, labelled a. or b., with the force and involved ion in question. (Options may be used more than once or not at all.)
-electrical gradient for Na⁺ at ENa+

Accepted Answer

A) The ion tends to be moved into the cell by this force. 
B) The ion tends to be moved out of the cell by this force. 
A) The ion tends to be moved into the cell by this force. 
B) The ion tends to be moved out of the cell by this force.

Question 6

A change in a membrane potential from +30 mV to -70 mV is an example of _______________.

Accepted Answer

A) depolarization 
B) hyperpolarization 
C) polarization 
D) repolarization 
A) depolarization 
B) hyperpolarization 
C) polarization 
D) repolarization

Question 7

Match the terms, labelled a. through d., to their descriptions. (Options may be used more than once or not at all.)
-visible only with a high-voltage electron microscope

Accepted Answer

A) microtubules 
B) microfilaments 
C) intermediate filaments 
D) micro trabecular lattice 
A) microtubules 
B) microfilaments 
C) intermediate filaments 
D) micro trabecular lattice

Question 8

Divergence refers to the neuronal arrangement wherein the dendrites diverge to synapse with as many presynaptic inputs as possible.

Accepted Answer

A) True 
 B)False

Question 9

Which of the following decreases the rate of diffusion of a substance through the plasma membrane

Accepted Answer

A) increasing the concentration gradient 
B) increasing the molecular weight of the substance 
C) increasing the permeability of the membrane 
D) increasing the surface area of the membrane 
A) increasing the concentration gradient 
B) increasing the molecular weight of the substance 
C) increasing the permeability of the membrane 
D) increasing the surface area of the membrane

Question 10

If a concentration or electrical gradient is present for a given substance, the substance will always passively permeate the membrane.

Accepted Answer

A) True 
 B)False

Question 11

The resting membrane potential of a typical nerve cell is about ____________________ millivolts.

Accepted Answer

The answer of The resting membrane potential of a typical...

Question 12

What is the cellular component that, once activated by the binding of an extracellular messenger to a surface receptor, in turn activates cyclic AMP

Accepted Answer

A) phospholipase C 
B) adenylate cyclase 
C) calmodulin 
D) calcium 
A) phospholipase C 
B) adenylate cyclase 
C) calmodulin 
D) calcium

Question 13

Which of these statements does NOT describe membrane proteins

Accepted Answer

A) Their channels are water-filled pathways. 
B) Their channels may be highly selective. 
C) They may catalyze specific reactions. 
D) CAMs serve as binding sites for specific ligands. 
A) Their channels are water-filled pathways. 
B) Their channels may be highly selective. 
C) They may catalyze specific reactions. 
D) CAMs serve as binding sites for specific ligands.

Question 14

The Na⁺ and K⁺ channels that open and close during an action potential are voltage-gated channels.

Accepted Answer

A) True 
 B)False

Question 15

Pinocytosis refers to the process of a cell engulfing a large, multimolecular particle and bringing the particle into the contents of the cell.

Accepted Answer

A) True 
 B)False

Question 16

The nodes of Ranvier are formed by Schwann cells or oligodendrocytes that wrap themselves "jelly roll fashion" around the axon.

Accepted Answer

A) True 
 B)False

Question 17

What is the term for a leukocyte fighting bacterial infection by sending out projections of its plasma membrane to surround an invading bacterium

Accepted Answer

A) exocytosis 
B) receptor-mediated endocytosis 
C) pinocytosis 
D) phagocytosis 
A) exocytosis 
B) receptor-mediated endocytosis 
C) pinocytosis 
D) phagocytosis

Question 18

During the absolute refractory period, the Na⁺ gates are not capable of opening again in response to another triggering event.

Accepted Answer

A) True 
 B)False

Question 19

Which of the following is responsible for the falling phase of an action potential

Accepted Answer

A) opening of Na⁺ gates 
B) Na+-K⁺ pump restoring the ions to their original locations 
C) greatly increased permeability to Na⁺ 
D) opening of K⁺ gates and K⁺ efflux 
A) opening of Na⁺ gates 
B) Na+-K⁺ pump restoring the ions to their original locations 
C) greatly increased permeability to Na⁺ 
D) opening of K⁺ gates and K⁺ efflux

Question 20

Insulin promotes the uptake of glucose into cells by which of these transport mechanisms

Accepted Answer

A) carrier-mediated transport 
B) endocytosis 
C) exocytosis 
D) osmosis 
A) carrier-mediated transport 
B) endocytosis 
C) exocytosis 
D) osmosis

Movement of K⁺ into the cell requires energy expenditure, whereas movement of Na⁺ into the cell does not.

Products destined for intracellular transport are packaged in , whereas products for export are packaged in .

What are the two major parts of a cell's interior

Which one of the following is a function of membrane carbohydrates

Match the result, labelled a. or b., with the force and involved ion in question. (Options may be used more than once or not at all.) -electrical gradient for Na⁺ at ENa⁺

A change in a membrane potential from +30 mV to -70 mV is an example of _______________.

Match the terms, labelled a. through d., to their descriptions. (Options may be used more than once or not at all.) -visible only with a high-voltage electron microscope

Divergence refers to the neuronal arrangement wherein the dendrites diverge to synapse with as many presynaptic inputs as possible.

Which of the following decreases the rate of diffusion of a substance through the plasma membrane

If a concentration or electrical gradient is present for a given substance, the substance will always passively permeate the membrane.

The resting membrane potential of a typical nerve cell is about ____________________ millivolts.

What is the cellular component that, once activated by the binding of an extracellular messenger to a surface receptor, in turn activates cyclic AMP

Which of these statements does NOT describe membrane proteins

The Na⁺ and K⁺ channels that open and close during an action potential are voltage-gated channels.

Pinocytosis refers to the process of a cell engulfing a large, multimolecular particle and bringing the particle into the contents of the cell.

The nodes of Ranvier are formed by Schwann cells or oligodendrocytes that wrap themselves "jelly roll fashion" around the axon.

What is the term for a leukocyte fighting bacterial infection by sending out projections of its plasma membrane to surround an invading bacterium

During the absolute refractory period, the Na⁺ gates are not capable of opening again in response to another triggering event.

Which of the following is responsible for the falling phase of an action potential

Insulin promotes the uptake of glucose into cells by which of these transport mechanisms

The Foundation of Physiology

The Central Nervous System

The Peripheral Nervous System: Sensory, Autonomic, Somatic

Principles of Endocrinology: The Central Endocrine Glands

The Endocrine Glands

Muscle Physiology

Cardiac Physiology

Vascular Physiology

The Blood

Body Defences

The Respiratory System

The Urinary System

Fluid and Acidbase Balance

The Digestive System

Energy Balance and Temperature Regulation

The Reproductive System

Filters

Exam 2: Cell Physiology

Movement of K⁺ into the cell requires energy expenditure, whereas movement of Na⁺ into the cell does not.

Products destined for intracellular transport are packaged in ____________________, whereas products for export are packaged in ____________________.

What are the two major parts of a cell's interior

Which one of the following is a function of membrane carbohydrates

Match the result, labelled a. or b., with the force and involved ion in question. (Options may be used more than once or not at all.) -electrical gradient for Na⁺ at ENa+

A change in a membrane potential from +30 mV to -70 mV is an example of _______________.

Match the terms, labelled a. through d., to their descriptions. (Options may be used more than once or not at all.) -visible only with a high-voltage electron microscope

Divergence refers to the neuronal arrangement wherein the dendrites diverge to synapse with as many presynaptic inputs as possible.

Which of the following decreases the rate of diffusion of a substance through the plasma membrane

If a concentration or electrical gradient is present for a given substance, the substance will always passively permeate the membrane.

The resting membrane potential of a typical nerve cell is about ____________________ millivolts.

What is the cellular component that, once activated by the binding of an extracellular messenger to a surface receptor, in turn activates cyclic AMP

Which of these statements does NOT describe membrane proteins

The Na⁺ and K⁺ channels that open and close during an action potential are voltage-gated channels.

Pinocytosis refers to the process of a cell engulfing a large, multimolecular particle and bringing the particle into the contents of the cell.

The nodes of Ranvier are formed by Schwann cells or oligodendrocytes that wrap themselves "jelly roll fashion" around the axon.

What is the term for a leukocyte fighting bacterial infection by sending out projections of its plasma membrane to surround an invading bacterium

During the absolute refractory period, the Na⁺ gates are not capable of opening again in response to another triggering event.

Which of the following is responsible for the falling phase of an action potential

Insulin promotes the uptake of glucose into cells by which of these transport mechanisms

The Foundation of Physiology

The Central Nervous System

The Peripheral Nervous System: Sensory, Autonomic, Somatic

Principles of Endocrinology: The Central Endocrine Glands

The Endocrine Glands

Muscle Physiology

Cardiac Physiology

Vascular Physiology

The Blood

Body Defences

The Respiratory System

The Urinary System

Fluid and Acidbase Balance

The Digestive System

Energy Balance and Temperature Regulation

The Reproductive System

Filters

Products destined for intracellular transport are packaged in , whereas products for export are packaged in .

Match the result, labelled a. or b., with the force and involved ion in question. (Options may be used more than once or not at all.) -electrical gradient for Na⁺ at ENa⁺