Question 1

How are action potentials propagated

Accepted Answer

Action potentials are propagated along t

Question 2

The ribosomes of the rough ER synthesize ____________________, whereas its membranous walls contain enzymes essential for the synthesis of ____________________.

Accepted Answer

The answer of The ribosomes of the rough ER synthesize...

Question 3

Because of the presence of both activation and inactivation gates, voltage-gated Na⁺ channels can be in which of these states

Accepted Answer

A) closed but capable of opening 
B) inhibited 
C) partially closed 
D) partially opened 
A) closed but capable of opening 
B) inhibited 
C) partially closed 
D) partially opened

Question 4

Match the ions, labelled a. through d., with their various roles. (Options may be used more than once or not at all.)
-anion to which the membrane is impermeable

Accepted Answer

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

Question 5

Describe aerobic cellular respiration from a mechanistic point of view.

Accepted Answer

Aerobic cellular respiration is the proc

Question 6

Which of these substances is most likely to diffuse passively across the plasma membrane by dissolving in the membrane

Accepted Answer

A) a cation 
B) an anion 
C) a nonpolar or nonionized molecule 
D) a polar molecule 
A) a cation 
B) an anion 
C) a nonpolar or nonionized molecule 
D) a polar molecule

Question 7

Match the cellular proteins, labelled a. through e., with their correct characteristic.
-serves as binding site for ribosomes

Accepted Answer

A) dynamin 
B) tubulin 
C) kinesin 
D) actin 
E) ribophorin 
A) dynamin 
B) tubulin 
C) kinesin 
D) actin 
E) ribophorin

Question 8

Match the terms, labelled a. through i., to their descriptions. (Options may be used more than once or not at all.)
-synthesizes proteins for use in the cytosol

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

Endocytosis and exocytosis are both kinds of ____________________ transport.

Accepted Answer

The answer of Endocytosis and exocytosis are both kinds of...

Question 10

Which of the following refers to the form of endocytosis in which whole cells such as bacteria are brought in

Accepted Answer

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

Question 11

Which of these statements describes the result of a neuron being experimentally stimulated at both ends simultaneously

Accepted Answer

A) The action potentials pass in the middle and travel to the opposite ends. 
B) The action potentials meet in the middle and are then propagated back to their starting positions. 
C) The action potentials stop as they meet in the middle. 
D) The stronger action potential overrides the weaker action potential. 
A) The action potentials pass in the middle and travel to the opposite ends. 
B) The action potentials meet in the middle and are then propagated back to their starting positions. 
C) The action potentials stop as they meet in the middle. 
D) The stronger action potential overrides the weaker action potential.

Question 12

Which of these molecules enters the citric acid cycle directly

Accepted Answer

A) acetyl CoA 
B) adenosine diphosphate 
C) citric acid 
D) oxaloacetic acid 
A) acetyl CoA 
B) adenosine diphosphate 
C) citric acid 
D) oxaloacetic acid

Question 13

Large, myelinated fibres can conduct impulses near the rate of ____________________ metres per second.

Accepted Answer

The answer of Large, myelinated fibres can conduct impulses near...

Question 14

Which of the following happens during osmosis

Accepted Answer

A) Water moves down its own concentration gradient. 
B) Water moves to an area of higher solute concentration. 
C) The solute moves against its concentration gradient. 
D) The solute moves down its own concentration gradient. 
A) Water moves down its own concentration gradient. 
B) Water moves to an area of higher solute concentration. 
C) The solute moves against its concentration gradient. 
D) The solute moves down its own concentration gradient.

Question 15

Which of these statements describes neuropeptides

Accepted Answer

A) They are sometimes cosecreted along with classical neurotransmitters. 
B) They are synthesized in the cytosol of the axon terminal. 
C) They act at the subsynaptic membrane of the postsynaptic neuron. 
D) They usually alter the potential of postsynaptic cells by opening specific ion channels. 
A) They are sometimes cosecreted along with classical neurotransmitters. 
B) They are synthesized in the cytosol of the axon terminal. 
C) They act at the subsynaptic membrane of the postsynaptic neuron. 
D) They usually alter the potential of postsynaptic cells by opening specific ion channels.

Question 16

Which of these statements is NOT an accurate representation of cells

Accepted Answer

A) All living cells have a membrane potential. 
B) Rapid changes in membrane potential in muscle cells trigger abnormal muscle twitching. 
C) The cell's interior (ICF) is slightly more negative than ECF. 
D) The cell's membrane is more permeable to K⁺ than to Na⁺. 
A) All living cells have a membrane potential. 
B) Rapid changes in membrane potential in muscle cells trigger abnormal muscle twitching. 
C) The cell's interior (ICF) is slightly more negative than ECF. 
D) The cell's membrane is more permeable to K⁺ than to Na⁺.

Question 17

Which of these statements describes facilitated diffusion

Accepted Answer

A) It involves a carrier molecule. 
B) It requires energy expenditure. 
C) It is how protein enters the cells. 
D) It is about movement of molecules against their concentration gradient. 
A) It involves a carrier molecule. 
B) It requires energy expenditure. 
C) It is how protein enters the cells. 
D) It is about movement of molecules against their concentration gradient.

Question 18

The following questions refer to comparative concentrations, permeabilities, and potentials under various circumstances. Match the relationship between the two items, A. and B.., with the qualifications labelled a. through c. (Options may be used more than once or not at all.)
-a.resting membrane potential in a typical nerve cell
B.equilibrium potential for K⁺

Accepted Answer

A) A is greater than B 
B) B is greater than A 
C) A and B are equal 
A) A is greater than B 
B) B is greater than A 
C) A and B are equal

Question 19

Match the terms, labelled a. through i., to their descriptions. (Options may be used more than once or not at all.)
-an important component of cilia and flagella

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 20

Which of these statements does NOT apply to ribosomes

Accepted Answer

A) They are composed of RNA. 
B) They assemble polypeptides. 
C) They may be bound to endoplasmic reticulum. 
D) They are covered by a membrane. 
A) They are composed of RNA. 
B) They assemble polypeptides. 
C) They may be bound to endoplasmic reticulum. 
D) They are covered by a membrane.

How are action potentials propagated

The ribosomes of the rough ER synthesize , whereas its membranous walls contain enzymes essential for the synthesis of .

Because of the presence of both activation and inactivation gates, voltage-gated Na⁺ channels can be in which of these states

Match the ions, labelled a. through d., with their various roles. (Options may be used more than once or not at all.) -anion to which the membrane is impermeable

Describe aerobic cellular respiration from a mechanistic point of view.

Which of these substances is most likely to diffuse passively across the plasma membrane by dissolving in the membrane

Match the cellular proteins, labelled a. through e., with their correct characteristic. -serves as binding site for ribosomes

Match the terms, labelled a. through i., to their descriptions. (Options may be used more than once or not at all.) -synthesizes proteins for use in the cytosol

Endocytosis and exocytosis are both kinds of ____________________ transport.

Which of the following refers to the form of endocytosis in which whole cells such as bacteria are brought in

Which of these statements describes the result of a neuron being experimentally stimulated at both ends simultaneously

Which of these molecules enters the citric acid cycle directly

Large, myelinated fibres can conduct impulses near the rate of ____________________ metres per second.

Which of the following happens during osmosis

Which of these statements describes neuropeptides

Which of these statements is NOT an accurate representation of cells

Which of these statements describes facilitated diffusion

Match the terms, labelled a. through i., to their descriptions. (Options may be used more than once or not at all.) -an important component of cilia and flagella

Which of these statements does NOT apply to ribosomes

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

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Exam 2: Cell Physiology

How are action potentials propagated

The ribosomes of the rough ER synthesize ____________________, whereas its membranous walls contain enzymes essential for the synthesis of ____________________.

Because of the presence of both activation and inactivation gates, voltage-gated Na⁺ channels can be in which of these states

Match the ions, labelled a. through d., with their various roles. (Options may be used more than once or not at all.) -anion to which the membrane is impermeable

Describe aerobic cellular respiration from a mechanistic point of view.

Which of these substances is most likely to diffuse passively across the plasma membrane by dissolving in the membrane

Match the cellular proteins, labelled a. through e., with their correct characteristic. -serves as binding site for ribosomes

Match the terms, labelled a. through i., to their descriptions. (Options may be used more than once or not at all.) -synthesizes proteins for use in the cytosol

Endocytosis and exocytosis are both kinds of ____________________ transport.

Which of the following refers to the form of endocytosis in which whole cells such as bacteria are brought in

Which of these statements describes the result of a neuron being experimentally stimulated at both ends simultaneously

Which of these molecules enters the citric acid cycle directly

Large, myelinated fibres can conduct impulses near the rate of ____________________ metres per second.

Which of the following happens during osmosis

Which of these statements describes neuropeptides

Which of these statements is NOT an accurate representation of cells

Which of these statements describes facilitated diffusion

Match the terms, labelled a. through i., to their descriptions. (Options may be used more than once or not at all.) -an important component of cilia and flagella

Which of these statements does NOT apply to ribosomes

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 ribosomes of the rough ER synthesize , whereas its membranous walls contain enzymes essential for the synthesis of .