Question 1

The peroxisomes mainly generate hydrogen peroxide.

Accepted Answer

A) True 
 B)False

Question 2

Glycolysis generates ATP from glucose with high efficiency.

Accepted Answer

A) True 
 B)False

Question 3

Insulin is a long ____________________ chain.

Accepted Answer

The answer of Insulin is a long ____________________ chain....

Question 4

Which of these statements does NOT apply to the absolute refractory period

Accepted Answer

A) It refers to the period of time during which another action potential cannot be initiated in a patch of membrane that has just undergone an action potential, no matter how strong the stimulus. 
B) It corresponds to the time period during which the Na⁺ gates are first opened and then closed and inactivated. 
C) Immediately following it, the patch of nerve fibre membrane that has just undergone an action potential can be restimulated only by a stronger stimulus than is usually necessary. 
D) It occurs during the after hyperpolarization phase of the action potential. 
A) It refers to the period of time during which another action potential cannot be initiated in a patch of membrane that has just undergone an action potential, no matter how strong the stimulus. 
B) It corresponds to the time period during which the Na⁺ gates are first opened and then closed and inactivated. 
C) Immediately following it, the patch of nerve fibre membrane that has just undergone an action potential can be restimulated only by a stronger stimulus than is usually necessary. 
D) It occurs during the after hyperpolarization phase of the action potential.

Question 5

Which statement does NOT describe graded potentials

Accepted Answer

A) They are decremental. 
B) They travel only short distances. 
C) They are self-propagating. 
D) They may contribute to the development of an action potential. 
A) They are decremental. 
B) They travel only short distances. 
C) They are self-propagating. 
D) They may contribute to the development of an action potential.

Question 6

Oxidative phosphorylation generates the most ATP per glucose molecule.

Accepted Answer

A) True 
 B)False

Question 7

Which of these statements does NOT refer to propagation of action potentials

Accepted Answer

A) Saltatory conduction occurs in myelinated nerve fibres. 
B) During conduction by local current flow, there is a flow of current between the active and the adjacent inactive area of the cell membrane, thereby decreasing the potential in the inactive area to threshold. 
C) It jumps from one Schwann cell to the adjacent Schwann cell in a myelinated fibre. 
D) Saltatory conduction is faster than conduction by local current flow. 
A) Saltatory conduction occurs in myelinated nerve fibres. 
B) During conduction by local current flow, there is a flow of current between the active and the adjacent inactive area of the cell membrane, thereby decreasing the potential in the inactive area to threshold. 
C) It jumps from one Schwann cell to the adjacent Schwann cell in a myelinated fibre. 
D) Saltatory conduction is faster than conduction by local current flow.

Question 8

Match the terms, labelled a. through i., to their descriptions. (Options may be used more than once or not at all.)
-shaped like an octagonal barrel

Accepted Answer

A) endoplasmic reticulum (ER) 
B) Golgi complex 
C) lysosome 
D) peroxisome 
E) mitochondrion
F)vault
G)free ribosome
H)microtubule
I)microfilament 
A) endoplasmic reticulum (ER) 
B) Golgi complex 
C) lysosome 
D) peroxisome 
E) mitochondrion
F)vault
G)free ribosome
H)microtubule
I)microfilament

Question 9

____________________ are cave-like indentations on the outer surface of the plasma membrane.

Accepted Answer

The answer of ____________________ are cave-like indentations on the outer...

Question 10

The three characteristics that determine the kind and amount of material that can be moved across a membrane by carrier-mediated transport are ____________________, ____________________, and ____________________.

Accepted Answer

competition; saturat

Question 11

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.)
-concentration gradient for K⁺ at resting potential

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 12

Match the terms, labelled a. through i., to their descriptions. (Options may be used more than once or not at all.)
-acts as a mechanical stiffener

Accepted Answer

A) endoplasmic reticulum (ER) 
B) Golgi complex 
C) lysosome 
D) peroxisome 
E) mitochondrion
F)vault
G)free ribosome
H)microtubule
I)microfilament 
A) endoplasmic reticulum (ER) 
B) Golgi complex 
C) lysosome 
D) peroxisome 
E) mitochondrion
F)vault
G)free ribosome
H)microtubule
I)microfilament

Question 13

If red blood cells are placed in a ____________________ solution, water enters, causing them to swell.

Accepted Answer

The answer of If red blood cells are placed in...

Question 14

One chemical messenger molecule can ultimately induce the production of millions of molecules of a secretory product by a cell.

Accepted Answer

A) True 
 B)False

Question 15

____________________ refers to a separation of opposite charges across the membrane.

Accepted Answer

The answer of ____________________ refers to a separation of opposite...

Question 16

Which of these statements does NOT refer to neuronal inhibition

Accepted Answer

A) With presynaptic inhibition, another neuron selectively excites an inhibitory presynaptic input. 
B) An IPSP depresses information fed into the cell from any excitatory presynaptic input. 
C) All the axon terminals of an inhibitory neuron will release inhibitory transmitter. 
D) An IPSP moves the potential of the postsynaptic neuron farther from threshold. 
A) With presynaptic inhibition, another neuron selectively excites an inhibitory presynaptic input. 
B) An IPSP depresses information fed into the cell from any excitatory presynaptic input. 
C) All the axon terminals of an inhibitory neuron will release inhibitory transmitter. 
D) An IPSP moves the potential of the postsynaptic neuron farther from threshold.

Question 17

Assume that a membrane that is permeable to Na⁺ but not to Cl- separates two solutions.The concentration of sodium chloride on side 1 is much higher than on side 2.Which of these ionic movements will take place

Accepted Answer

A) Na+ will move until its concentration gradient is dissipated (i.e., until the concentration of Na⁺ on side 2 is the same as the concentration of Na⁺ on side 1). 
B) Cl- will move down its concentration gradient from side 1 to side 2. 
C) A membrane potential, negative on side 1, will develop. 
D) A membrane potential, positive on side 1, will develop. 
A) Na+ will move until its concentration gradient is dissipated (i.e., until the concentration of Na⁺ on side 2 is the same as the concentration of Na⁺ on side 1). 
B) Cl- will move down its concentration gradient from side 1 to side 2. 
C) A membrane potential, negative on side 1, will develop. 
D) A membrane potential, positive on side 1, will develop.

Question 18

Match the ions, labelled a. through d., with their various roles. (Options may be used more than once or not at all.)
-cation to which the membrane is most permeable under resting conditions

Accepted Answer

A) Na+ 
B) K⁺ 
C) A- 
D) Cl- 
A) Na+ 
B) K⁺ 
C) A- 
D) Cl-

Question 19

Lysosomes contain ____________________ enzymes that are capable of digesting and removing unwanted debris from the cell.

Accepted Answer

The answer of Lysosomes contain ____________________ enzymes that are capable...

Question 20

Which of the following is a common means by which binding of an extracellular chemical messenger with a cell's receptor brings about a desired intracellular response

Accepted Answer

A) opening or closing of specific channels to regulate ionic movement across the plasma membrane 
B) activation of an extracellular, second messenger system 
C) alteration of DNA structure by attaching to the nucleus 
D) combination with surface receptor 
A) opening or closing of specific channels to regulate ionic movement across the plasma membrane 
B) activation of an extracellular, second messenger system 
C) alteration of DNA structure by attaching to the nucleus 
D) combination with surface receptor

The peroxisomes mainly generate hydrogen peroxide.

Glycolysis generates ATP from glucose with high efficiency.

Insulin is a long ____________________ chain.

Which of these statements does NOT apply to the absolute refractory period

Which statement does NOT describe graded potentials

Oxidative phosphorylation generates the most ATP per glucose molecule.

Which of these statements does NOT refer to propagation of action potentials

Match the terms, labelled a. through i., to their descriptions. (Options may be used more than once or not at all.) -shaped like an octagonal barrel

____________________ are cave-like indentations on the outer surface of the plasma membrane.

The three characteristics that determine the kind and amount of material that can be moved across a membrane by carrier-mediated transport are , , and .

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.) -concentration gradient for K⁺ at resting potential

Match the terms, labelled a. through i., to their descriptions. (Options may be used more than once or not at all.) -acts as a mechanical stiffener

If red blood cells are placed in a ____________________ solution, water enters, causing them to swell.

One chemical messenger molecule can ultimately induce the production of millions of molecules of a secretory product by a cell.

____________________ refers to a separation of opposite charges across the membrane.

Which of these statements does NOT refer to neuronal inhibition

Assume that a membrane that is permeable to Na⁺ but not to Cl^- separates two solutions.The concentration of sodium chloride on side 1 is much higher than on side 2.Which of these ionic movements will take place

Match the ions, labelled a. through d., with their various roles. (Options may be used more than once or not at all.) -cation to which the membrane is most permeable under resting conditions

Lysosomes contain ____________________ enzymes that are capable of digesting and removing unwanted debris from the cell.

Which of the following is a common means by which binding of an extracellular chemical messenger with a cell's receptor brings about a desired intracellular response

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

The peroxisomes mainly generate hydrogen peroxide.

Glycolysis generates ATP from glucose with high efficiency.

Insulin is a long ____________________ chain.

Which of these statements does NOT apply to the absolute refractory period

Which statement does NOT describe graded potentials

Oxidative phosphorylation generates the most ATP per glucose molecule.

Which of these statements does NOT refer to propagation of action potentials

Match the terms, labelled a. through i., to their descriptions. (Options may be used more than once or not at all.) -shaped like an octagonal barrel

____________________ are cave-like indentations on the outer surface of the plasma membrane.

The three characteristics that determine the kind and amount of material that can be moved across a membrane by carrier-mediated transport are ____________________, ____________________, and ____________________.

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.) -concentration gradient for K⁺ at resting potential

Match the terms, labelled a. through i., to their descriptions. (Options may be used more than once or not at all.) -acts as a mechanical stiffener

If red blood cells are placed in a ____________________ solution, water enters, causing them to swell.

One chemical messenger molecule can ultimately induce the production of millions of molecules of a secretory product by a cell.

____________________ refers to a separation of opposite charges across the membrane.

Which of these statements does NOT refer to neuronal inhibition

Assume that a membrane that is permeable to Na⁺ but not to Cl- separates two solutions.The concentration of sodium chloride on side 1 is much higher than on side 2.Which of these ionic movements will take place

Match the ions, labelled a. through d., with their various roles. (Options may be used more than once or not at all.) -cation to which the membrane is most permeable under resting conditions

Lysosomes contain ____________________ enzymes that are capable of digesting and removing unwanted debris from the cell.

Which of the following is a common means by which binding of an extracellular chemical messenger with a cell's receptor brings about a desired intracellular response

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

The three characteristics that determine the kind and amount of material that can be moved across a membrane by carrier-mediated transport are , , and .

Assume that a membrane that is permeable to Na⁺ but not to Cl^- separates two solutions.The concentration of sodium chloride on side 1 is much higher than on side 2.Which of these ionic movements will take place