Question 1

Which of the following is a possible result of EPSP and IPSP activity?

Accepted Answer

A) an unusually strong action potential forms 
B) an unusually strong presynaptic potential forms 
C) temporal summation in a postsynaptic neuron 
D) temporal summation in a presynaptic neuron 
A) an unusually strong action potential forms 
B) an unusually strong presynaptic potential forms 
C) temporal summation in a postsynaptic neuron 
D) temporal summation in a presynaptic neuron

Question 2

-In the chemical synapse in the figure, which structure represents the axon terminal of a presynaptic cell?

Accepted Answer

A) structure E 
B) structure D 
C) structure C 
D) structure A 
A) structure E 
B) structure D 
C) structure C 
D) structure A

Question 3

Neurotransmitters are stored in vesicles located within axon terminals.

Accepted Answer

A) True 
 B)False

Question 4

Which term refers to the spaces between adjacent Schwann cells?

Accepted Answer

A) nodes of Ranvier 
B) axon terminals 
C) active gaps 
D) intercalated discs 
A) nodes of Ranvier 
B) axon terminals 
C) active gaps 
D) intercalated discs

Question 5

Saltatory conduction is the slowest form of action potential propagation.

Accepted Answer

A) True 
 B)False

Question 6

What happens to the neuron's membrane when its membrane potential goes below its resting value?

Accepted Answer

A) It becomes repolarized. 
B) It becomes hyperpolarized. 
C) It becomes hypopolarized. 
D) It becomes depolarized. 
A) It becomes repolarized. 
B) It becomes hyperpolarized. 
C) It becomes hypopolarized. 
D) It becomes depolarized.

Question 7

When are vesicles containing neurotransmitters released into the synaptic cleft?

Accepted Answer

A) when Ca2+ levels rise within the axon terminal 
B) when Na+ levels rise within the axon terminal 
C) when H+ levels rise within the axon terminal 
D) when Cl- levels rise within the axon terminal 
A) when Ca2+ levels rise within the axon terminal 
B) when Na+ levels rise within the axon terminal 
C) when H+ levels rise within the axon terminal 
D) when Cl- levels rise within the axon terminal

Question 8

Which of the following is a characteristic of the autonomic nervous system?

Accepted Answer

A) It is a functional division of the central nervous system. 
B) It controls body movements that are under unconscious control. 
C) It is composed of parasympathetic and sympathetic divisions. 
D) It includes both afferent and efferent nerve fibres. 
A) It is a functional division of the central nervous system. 
B) It controls body movements that are under unconscious control. 
C) It is composed of parasympathetic and sympathetic divisions. 
D) It includes both afferent and efferent nerve fibres.

Question 9

What will be caused in the postsynaptic membrane by the binding of a neurotransmitter to ligand-gated K+ channels?

Accepted Answer

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

Question 10

Which of the following refers to an abrupt and transient change in membrane potential?

Accepted Answer

A) resting potential 
B) refractory potential 
C) action potential 
D) threshold potential 
A) resting potential 
B) refractory potential 
C) action potential 
D) threshold potential

Question 11

Which of the following remove(s) Ca2+ from the inside of an axon terminal of a chemical synapse after an electrical impulse has passed?

Accepted Answer

A) ion channels 
B) simple diffusion through the plasma membrane 
C) active transport pumps 
D) exocytosis 
A) ion channels 
B) simple diffusion through the plasma membrane 
C) active transport pumps 
D) exocytosis

Question 12

Match each situation to the most appropriate term.
-occurs in a postsynaptic membrane when ligand-gated Cl- channels open

Accepted Answer

A) depolarization 
B) repolarization 
C) hyperpolarization 
A) depolarization 
B) repolarization 
C) hyperpolarization

Question 13

Match each situation to the most appropriate term.
-begins when Na+ channel inactivation gates close and K+ activation gates open

Accepted Answer

A) depolarization 
B) repolarization 
C) hyperpolarization 
A) depolarization 
B) repolarization 
C) hyperpolarization

Question 14

Which of the following functions primarily in detecting and eliciting responses to environmental cues or stimuli?

Accepted Answer

A) the nervous system 
B) the endocrine system 
C) catabolism 
D) metabolism 
A) the nervous system 
B) the endocrine system 
C) catabolism 
D) metabolism

Question 15

What occurs when threshold potential is reached?

Accepted Answer

A) The activation gates of Na+ channels open. 
B) The inactivation gates of Na+ channels open. 
C) The activation gates of Na+ channels close. 
D) Na+/K+ active transport pumps are activated. 
A) The activation gates of Na+ channels open. 
B) The inactivation gates of Na+ channels open. 
C) The activation gates of Na+ channels close. 
D) Na+/K+ active transport pumps are activated.

Question 16

Match each term with its definition.
-Broca's area

Accepted Answer

A) loose meshwork of neurons organized with radial symmetry 
B) cavities in the vertebrate brain filled with cerebrospinal fluid 
C) efferent portion of the PNS that deals with body movements that are under conscious, voluntary control 
D) neuronal activity that occurs without conscious effort; often associated with protection 
E) carries nervous activity from the brain and spinal cord to effector structures
F)composed of the midbrain, pons, and medulla
G)import with the ability to speak 
A) loose meshwork of neurons organized with radial symmetry 
B) cavities in the vertebrate brain filled with cerebrospinal fluid 
C) efferent portion of the PNS that deals with body movements that are under conscious, voluntary control 
D) neuronal activity that occurs without conscious effort; often associated with protection 
E) carries nervous activity from the brain and spinal cord to effector structures
F)composed of the midbrain, pons, and medulla
G)import with the ability to speak

Question 17

Which of the following animals has the most-advanced cephalization?

Accepted Answer

A) an arthropod 
B) an echinoderm 
C) a flatworm 
D) a chordate 
A) an arthropod 
B) an echinoderm 
C) a flatworm 
D) a chordate

Question 18

Valium is a drug that causes voltage-gated Cl- channels to open. What effects would this cause in a postsynaptic membrane?

Accepted Answer

Valium would cause hyperpolari

Question 19

Match each situation to the most appropriate term.
-occurs in a postsynaptic membrane when ligand-gated Na+ channels open

Accepted Answer

A) depolarization 
B) repolarization 
C) hyperpolarization 
A) depolarization 
B) repolarization 
C) hyperpolarization

Question 20

Match each term with its definition.
-reflexes

Accepted Answer

A) loose meshwork of neurons organized with radial symmetry 
B) cavities in the vertebrate brain filled with cerebrospinal fluid 
C) efferent portion of the PNS that deals with body movements that are under conscious, voluntary control 
D) neuronal activity that occurs without conscious effort; often associated with protection 
E) carries nervous activity from the brain and spinal cord to effector structures
F)composed of the midbrain, pons, and medulla
G)import with the ability to speak 
A) loose meshwork of neurons organized with radial symmetry 
B) cavities in the vertebrate brain filled with cerebrospinal fluid 
C) efferent portion of the PNS that deals with body movements that are under conscious, voluntary control 
D) neuronal activity that occurs without conscious effort; often associated with protection 
E) carries nervous activity from the brain and spinal cord to effector structures
F)composed of the midbrain, pons, and medulla
G)import with the ability to speak

Exam 44: Control of Animal Processes: Neural Control

Which of the following is a possible result of EPSP and IPSP activity?

-In the chemical synapse in the figure, which structure represents the axon terminal of a presynaptic cell?

Neurotransmitters are stored in vesicles located within axon terminals.

Which term refers to the spaces between adjacent Schwann cells?

Saltatory conduction is the slowest form of action potential propagation.

What happens to the neuron's membrane when its membrane potential goes below its resting value?

When are vesicles containing neurotransmitters released into the synaptic cleft?

Which of the following is a characteristic of the autonomic nervous system?

What will be caused in the postsynaptic membrane by the binding of a neurotransmitter to ligand-gated K+ channels?

Which of the following refers to an abrupt and transient change in membrane potential?

Which of the following remove(s) Ca2+ from the inside of an axon terminal of a chemical synapse after an electrical impulse has passed?

Match each situation to the most appropriate term. -occurs in a postsynaptic membrane when ligand-gated Cl- channels open

Match each situation to the most appropriate term. -begins when Na+ channel inactivation gates close and K+ activation gates open

Which of the following functions primarily in detecting and eliciting responses to environmental cues or stimuli?

What occurs when threshold potential is reached?

Match each term with its definition. -Broca's area

Which of the following animals has the most-advanced cephalization?

Valium is a drug that causes voltage-gated Cl- channels to open. What effects would this cause in a postsynaptic membrane?

Match each situation to the most appropriate term. -occurs in a postsynaptic membrane when ligand-gated Na+ channels open

Match each term with its definition. -reflexes

Light and Life

The Cell: an Overview

Defining Life and Its Origins

Energy and Enzymes

Cell Membranes and Signalling

Cellular Respiration

Photosynthesis

Cell Cycles

Genetic Recombination

Mendel, Genes, and Inheritance

Genes, Chromosomes, and Human Genetics

Dna Structure, Replication, and Organization

Gene Structure and Expression

Control of Gene Expression

Dna Technologies

Genomes and Proteomes

Evolution: the Development of the Theory

Microevolution: Changes Within Populations

Species and Macroevolution

Understanding the History of Life on Earth

Humans and Evolution

Bacteria and Archaea

Viruses, Viroids, and Prions: Infectious Biological Particles

Protists

Fungi

Plants

Diversity of Animals 1: Sponges, Radiata, Platyhelminthes, and Protostomes

Diversity of Animals 2: Deuterostomes: Vertebrates and Their Closest Relatives

Population Ecology

Population Interactions and Community Ecology

Ecosystems

Conservation of Biodiversity

Putting Selection to Work

Organization of the Plant Body

Transport in Plants

Reproduction and Development in Flowering Plants

Plant Nutrition

Plant Signals and Responses to the Environment

Introduction to Animal Organization and Physiology

Transport in Animals: the Circulatory System

Reproduction in Animals

Animal Development

Control of Animal Processes: Neural Control

Control of Animal Processes: Neural Integration

Muscles, Skeletons, and Body Movements

Animal Behaviour

Animal Nutrition

Gas Exchange: the Respiratory System

Regulating the Internal Environment

Defences Against Disease

Conservation and Evolutionary Physiology

Filters

What will be caused in the postsynaptic membrane by the binding of a neurotransmitter to ligand-gated K⁺ channels?

Which of the following remove(s) Ca²⁺ from the inside of an axon terminal of a chemical synapse after an electrical impulse has passed?

Match each situation to the most appropriate term. -begins when Na⁺ channel inactivation gates close and K⁺ activation gates open

Match each situation to the most appropriate term. -occurs in a postsynaptic membrane when ligand-gated Na⁺ channels open