Question 1

How many amino acids make up substance P?

Accepted Answer

A)  5 
B)  7 
C)  9 
D)  11 
A)  5 
B)  7 
C)  9 
D)  11 D

Question 2

A steroid hormone might act by doing which of the following?

Accepted Answer

A)  activating enzymes 
B)  affecting gene transcription 
C)  changing membrane permeability 
D)  any one of these 
A)  activating enzymes 
B)  affecting gene transcription 
C)  changing membrane permeability 
D)  any one of these D

Question 3

Consider the following diagram of a neuron.  
-Which number represents the axon?

Accepted Answer

A)  1 
B)  2 
C)  3 
D)  4 
E)  5 
A)  1 
B)  2 
C)  3 
D)  4 
E)  5 B

Question 4

Broadly speaking, based on their chemical nature, how many different classes of chemical messengers are there?

Accepted Answer

A)  2 
B)  3 
C)  4 
D)  5 
A)  2 
B)  3 
C)  4 
D)  5

Question 5

Which of the following is associated with botulism poisoning?

Accepted Answer

A)  improper functioning of the acetylcholine receptor 
B)  improper release of the acetylcholine messenger 
C)  improper synthesis of acetylcholine 
D)  improper synthesis of the acetylcholine messenger 
A)  improper functioning of the acetylcholine receptor 
B)  improper release of the acetylcholine messenger 
C)  improper synthesis of acetylcholine 
D)  improper synthesis of the acetylcholine messenger

Question 6

How many different subunits are present in the nicotinic acetylcholine receptor?

Accepted Answer

A)  4 
B)  5 
C)  6 
D)  7 
A)  4 
B)  5 
C)  6 
D)  7

Question 7

Hormones can belong to which of the following classes of chemical messengers?

Accepted Answer

A)  adrenergic 
B)  peptidergic 
C)  steroid 
D)  all of these 
A)  adrenergic 
B)  peptidergic 
C)  steroid 
D)  all of these

Question 8

Which of the following is the long fiber-like part of a nerve cell?

Accepted Answer

A)  the axon 
B)  a dendrite 
C)  the synapse 
D)  the vesicle 
A)  the axon 
B)  a dendrite 
C)  the synapse 
D)  the vesicle

Question 9

Hormones cannot belong to which of the following classes of chemical messengers?

Accepted Answer

A)  adrenergic 
B)  cholinergic 
C)  peptidergic 
D)  steroid 
A)  adrenergic 
B)  cholinergic 
C)  peptidergic 
D)  steroid

Question 10

Which of the following are discrete bodies within cells?

Accepted Answer

A)  nuclei 
B)  mitochondria 
C)  both a and b 
D)  neither a nor b 
A)  nuclei 
B)  mitochondria 
C)  both a and b 
D)  neither a nor b

Question 11

Which of the following hormones is produced in the kidney?

Accepted Answer

A)  insulin 
B)  glucagon 
C)  renin 
D)  vasopressin 
A)  insulin 
B)  glucagon 
C)  renin 
D)  vasopressin

Question 12

Which of the following acts through a secondary messenger?

Accepted Answer

A)  epinephrine 
B)  glucagon 
C)  luteinizing hormone 
D)  all of these 
A)  epinephrine 
B)  glucagon 
C)  luteinizing hormone 
D)  all of these

Question 13

Antidepressants such as Marplan do which of the following?

Accepted Answer

A)  increase the activity of monoamine oxidases 
B)  suppress the activity of monoamine oxidases 
C)  suppress the G-protein−adenylate cyclase cascade 
D)  suppress the synthesis of monoamine messengers 
A)  increase the activity of monoamine oxidases 
B)  suppress the activity of monoamine oxidases 
C)  suppress the G-protein−adenylate cyclase cascade 
D)  suppress the synthesis of monoamine messengers

Question 14

Consider the following diagram of a neuron.  
-Which number represents the synapse?

Accepted Answer

A)  1 
B)  2 
C)  3 
D)  4 
E)  5 
A)  1 
B)  2 
C)  3 
D)  4 
E)  5

Question 15

Which of the following ions can pass through the open channel of the acetylcholine receptor?

Accepted Answer

A)  Ca2+ 
B)  K+ 
C)  both a and b 
D)  neither a nor b 
A)  Ca2+ 
B)  K+ 
C)  both a and b 
D)  neither a nor b

Question 16

Which of the following is an adrenergic messenger?

Accepted Answer

A)  dopamine 
B)  histamine 
C)  serotonin 
D)  all of these 
A)  dopamine 
B)  histamine 
C)  serotonin 
D)  all of these

Question 17

Ligand is a term which can be used to describe which of the following?

Accepted Answer

A)  a chemical messenger 
B)  a neuron 
C)  a receptor 
D)  none of these 
A)  a chemical messenger 
B)  a neuron 
C)  a receptor 
D)  none of these

Question 18

Which of the following is an excitatory neurotransmitter?

Accepted Answer

A)  β-alanine 
B)  cysteine 
C)  taurine 
D)  none of these 
A)  β-alanine 
B)  cysteine 
C)  taurine 
D)  none of these

Question 19

How many distinct mechanisms are there for the control of neurotransmission by acetylcholine?

Accepted Answer

A)  1 
B)  2 
C)  3 
D)  4 
A)  1 
B)  2 
C)  3 
D)  4

Question 20

Consider the following diagram of a neuron.  
-Which number represents the dendrites?

Accepted Answer

A)  1 
B)  2 
C)  3 
D)  4 
E)  5 
A)  1 
B)  2 
C)  3 
D)  4 
E)  5

Exam 24: Chemical Communications: Neurotransmitters and Hormones

How many amino acids make up substance P?

A steroid hormone might act by doing which of the following?

Consider the following diagram of a neuron. -Which number represents the axon?

Broadly speaking, based on their chemical nature, how many different classes of chemical messengers are there?

Which of the following is associated with botulism poisoning?

How many different subunits are present in the nicotinic acetylcholine receptor?

Hormones can belong to which of the following classes of chemical messengers?

Which of the following is the long fiber-like part of a nerve cell?

Hormones cannot belong to which of the following classes of chemical messengers?

Which of the following are discrete bodies within cells?

Which of the following hormones is produced in the kidney?

Which of the following acts through a secondary messenger?

Antidepressants such as Marplan do which of the following?

Consider the following diagram of a neuron. -Which number represents the synapse?

Which of the following ions can pass through the open channel of the acetylcholine receptor?

Which of the following is an adrenergic messenger?

Ligand is a term which can be used to describe which of the following?

Which of the following is an excitatory neurotransmitter?

How many distinct mechanisms are there for the control of neurotransmission by acetylcholine?

Consider the following diagram of a neuron. -Which number represents the dendrites?

Matter, Energy, and Measurement

Atoms

Chemical Bonds

Chemical Reactions

Gases, Liquids, and Solids

Solutions and Colloids

Reaction Rates and Chemical Equilibrium

Acids and Bases

Nuclear Chemistry

Organic Chemistry

Alkanes

Alkenes and Alkynes

Benzene and Its Derivatives

Alcohols, Ethers, and Thiols

Chirality: the Handedness of Molecules

Amines

Aldehydes and Ketones

Carboxylic Acids

Carboxylic Anhydrides, Esters, and Amides

Carbohydrates

Lipids

Proteins

Enzymes

Nucleotides, Nucleic Acids, and Heredity

Gene Expression and Protein Synthesis

Bioenergetics: How the Body Converts Food to Energy

Specific Catabolic Pathways: Carbohydrate, Lipid, and Protein Metabolism

Biosynthetic Pathways

Nutrition

Immunochemistry

Body Fluids

Filters