Question 1

Which of the following is the first step for synaptic signalling when the action potential arrives at the axon terminal of a presynaptic neuron?

Accepted Answer

A) A neurotransmitter is released by exocytosis. 
B) Calcium flows in the synaptic knob. 
C)  The neurotransmitter combines with protein receptor sites on the subsynaptic membrane. 
D)  The permeability is altered in a postsynaptic neuron. 
A) A neurotransmitter is released by exocytosis. 
B) Calcium flows in the synaptic knob. 
C)  The neurotransmitter combines with protein receptor sites on the subsynaptic membrane. 
D)  The permeability is altered in a postsynaptic neuron.

Question 2

The refractory period prevents action potentials from spreading back over the part of the membrane where the impulse has just passed.

Accepted Answer

A) True 
 B)False

Question 3

What happens during the rising phase of the action potential?

Accepted Answer

A) PK+ is much greater than PNa+. 
B) PNa+ is much greater than PK+. 
C)  PK+ is the same as PNa+. 
A) PK+ is much greater than PNa+. 
B) PNa+ is much greater than PK+. 
C)  PK+ is the same as PNa+.

Question 4

Match the vesicles, labelled a. through c., with their characteristics. (Options may be used more than once or not at all.)
a.transport vesicles
b.coated vesicles
c.secretory vesicles
-originate from the Golgi complex

Accepted Answer

The answer of Match the vesicles, labelled a. through c.,...

Question 5

Oxidative phosphorylation generates the most ATP per glucose molecule.

Accepted Answer

A) True 
 B)False

Question 6

____________________ cells form myelin around neurons in the peripheral nervous system.

Accepted Answer

The answer of ____________________ cells form myelin around neurons in...

Question 7

Lack of aerobic exercise can have negative health implications, such as heart disease and high blood pressure.

Accepted Answer

A) True 
 B)False

Question 8

Which of the following statements regarding the citric acid cycle is NOT correct?

Accepted Answer

A) It occurs in the mitochondrial matrix. 
B) Carbon dioxide is released. 
C)  Several ATP molecules are produced for each cycle. 
D)  Acetyl CoA and oxaloacetic CoA initially react to form citric acid. 
A) It occurs in the mitochondrial matrix. 
B) Carbon dioxide is released. 
C)  Several ATP molecules are produced for each cycle. 
D)  Acetyl CoA and oxaloacetic CoA initially react to form citric acid.

Question 9

Describe the structure and function of cilia and flagella.

Accepted Answer

Cilia and flagella are both hair-like st

Question 10

Match the ions, labelled a. through d., with their various roles. (Options may be used more than once or not at all.)
a.NaS1U1P1+S1S1P0
b.KS1U1P1+S1S1P0
c.AS1U1P1-S1S1P0
d.ClS1U1P1-S1S1P0
-cation in greatest concentration in the ECF

Accepted Answer

The answer of Match the ions, labelled a. through d.,...

Question 11

Which of the following components is NOT always found in a typical human cell?

Accepted Answer

A) cytosol 
B) DNA 
C)  flagellum 
D)  plasma membrane 
A) cytosol 
B) DNA 
C)  flagellum 
D)  plasma membrane

Question 12

The junction between two neurons is known as a(n) ____________________.

Accepted Answer

The answer of The junction between two neurons is known...

Question 13

Hockey is a winter sport that uses only an aerobic energy supply.

Accepted Answer

A) True 
 B)False

Question 14

Temporal summation occurs when EPSPs from several different excitatory presynaptic inputs occur simultaneously.

Accepted Answer

A) True 
 B)False

Question 15

Which of these statements about the action potential is correct?

Accepted Answer

A) It has an all-or-none characteristic. 
B) It has no refractory period. 
C)  It is triggered by repolarization to threshold. 
D)  It speeds transmission by any type of summation. 
A) It has an all-or-none characteristic. 
B) It has no refractory period. 
C)  It is triggered by repolarization to threshold. 
D)  It speeds transmission by any type of summation.

Question 16

Which of the following statements concerning propagation of action potentials is NOT correct?

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)  The action potential 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)  The action potential 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 17

Classical neurotransmitters and neuropeptides are sometimes cosecreted from the same axon terminal.

Accepted Answer

A) True 
 B)False

Question 18

In the aerobic respiration process of the cells, when is CO2 released?

Accepted Answer

A) during glycolysis 
B) during the electron transport chain of events 
C)  during the Krebs cycle 
D)  during fermentation
For the following questions, assume a hypothetical postsynaptic neuron has three presynaptic inputs: X, Y, and Z. Also assume that presynaptic neurons Y and Z are excitatory. 
A) during glycolysis 
B) during the electron transport chain of events 
C)  during the Krebs cycle 
D)  during fermentation
For the following questions, assume a hypothetical postsynaptic neuron has three presynaptic inputs: X, Y, and Z. Also assume that presynaptic neurons Y and Z are excitatory.

Which of the following is the first step for synaptic signalling when the action potential arrives at the axon terminal of a presynaptic neuron?

The refractory period prevents action potentials from spreading back over the part of the membrane where the impulse has just passed.

What happens during the rising phase of the action potential?

Match the vesicles, labelled a. through c., with their characteristics. (Options may be used more than once or not at all.) a.transport vesicles b.coated vesicles c.secretory vesicles -originate from the Golgi complex

Oxidative phosphorylation generates the most ATP per glucose molecule.

____________________ cells form myelin around neurons in the peripheral nervous system.

Lack of aerobic exercise can have negative health implications, such as heart disease and high blood pressure.

Which of the following statements regarding the citric acid cycle is NOT correct?

Describe the structure and function of cilia and flagella.

Match the ions, labelled a. through d., with their various roles. (Options may be used more than once or not at all.) a.Na⁺ b.K⁺ c.A^- d.Cl^- -cation in greatest concentration in the ECF

Which of the following components is NOT always found in a typical human cell?

The junction between two neurons is known as a(n) ____________________.

Hockey is a winter sport that uses only an aerobic energy supply.

Temporal summation occurs when EPSPs from several different excitatory presynaptic inputs occur simultaneously.

Which of these statements about the action potential is correct?

Which of the following statements concerning propagation of action potentials is NOT correct?

Classical neurotransmitters and neuropeptides are sometimes cosecreted from the same axon terminal.

In the aerobic respiration process of the cells, when is CO₂ released?

Introduction to Physiology and Homeostasis

The Plasma Membrane and Membrane Potential

Principles of Neural and Hormonal Communication

The Central Nervous System

The Peripheral Nervous System: Afferent Division; Special Senses

The Peripheral Nervous System: Efferent Division

Muscle Physiology

Cardiac Physiology

The Blood Vessels and Blood Pressure

The Blood

Body Defenses

The Respiratory System

The Urinary System

Fluid and Acidbase Balance

The Digestive System

Energy Balance and Temperature Regulation

Filters

Exam 2: Cell Physiology

Which of the following is the first step for synaptic signalling when the action potential arrives at the axon terminal of a presynaptic neuron?

The refractory period prevents action potentials from spreading back over the part of the membrane where the impulse has just passed.

What happens during the rising phase of the action potential?

Match the vesicles, labelled a. through c., with their characteristics. (Options may be used more than once or not at all.) a.transport vesicles b.coated vesicles c.secretory vesicles -originate from the Golgi complex

Oxidative phosphorylation generates the most ATP per glucose molecule.

____________________ cells form myelin around neurons in the peripheral nervous system.

Lack of aerobic exercise can have negative health implications, such as heart disease and high blood pressure.

Which of the following statements regarding the citric acid cycle is NOT correct?

Describe the structure and function of cilia and flagella.

Match the ions, labelled a. through d., with their various roles. (Options may be used more than once or not at all.) a.Na+ b.K+ c.A- d.Cl- -cation in greatest concentration in the ECF

Which of the following components is NOT always found in a typical human cell?

The junction between two neurons is known as a(n) ____________________.

Hockey is a winter sport that uses only an aerobic energy supply.

Temporal summation occurs when EPSPs from several different excitatory presynaptic inputs occur simultaneously.

Which of these statements about the action potential is correct?

Which of the following statements concerning propagation of action potentials is NOT correct?

Classical neurotransmitters and neuropeptides are sometimes cosecreted from the same axon terminal.

In the aerobic respiration process of the cells, when is CO2 released?

Introduction to Physiology and Homeostasis

The Plasma Membrane and Membrane Potential

Principles of Neural and Hormonal Communication

The Central Nervous System

The Peripheral Nervous System: Afferent Division; Special Senses

The Peripheral Nervous System: Efferent Division

Muscle Physiology

Cardiac Physiology

The Blood Vessels and Blood Pressure

The Blood

Body Defenses

The Respiratory System

The Urinary System

Fluid and Acidbase Balance

The Digestive System

Energy Balance and Temperature Regulation

Filters

Match the ions, labelled a. through d., with their various roles. (Options may be used more than once or not at all.) a.Na⁺ b.K⁺ c.A^- d.Cl^- -cation in greatest concentration in the ECF

In the aerobic respiration process of the cells, when is CO₂ released?