Question 1

Which of the following molecules is an aldehyde? 
A) molecule a
B) molecule b
C) molecule c
D) molecule d
E) molecule e

Accepted Answer

A

Question 2

Which structure is NOT an amide? A) CH₃CONHCH₃ B) CH₃CH₂NHCHO C) NH₂CH₂CHO D) (CH₃)₂NOCCH₃ E) CH₃CH₂NHCOCH₂CH₃

Accepted Answer

An amide has a carbonyl group (C=O) directly attached to a nitrogen atom. Structure C has an aldehyde group (CHO) attached to an amine (NH2), not forming an amide.

Question 3

Because L-dopa is metabolized into an active drug in the body, L-dopa is a________.
A) metabolite
B) biomolecule
C) precursor
D) prodrug
E) generic drug

Accepted Answer

L-dopa is considered a prodrug because it is metabolized into an active drug (dopamine) within the body, rather than being active in its initially administered form.

Question 4

What do the following molecules have in common? 
A) an ionic bond
B) They hydrogen bond with like molecules.
C) a carbon with a linear molecular geometry
D) an alcohol
E) a carbonyl-containing functional group

Accepted Answer

The answer of What do the following molecules have in...

Question 5

What is the role of dopamine in the body?
A) It is a neurotransmitter.
B) It is a protein.
C) It is the energy currency of the cell.
D) It is part of our genetic material.
E) It is part of the cell membrane.

Accepted Answer

Dopamine is a neurotransmitter, which means it is a chemical messenger that transmits signals in the brain and other areas of the body. It plays several important roles, including influencing mood, reward, and motor control.

Question 6

What is the name of the parent chain of the following molecule? 
A) ethylamine
B) dimethylamine
C) propylamide
D) propylamine
E) butylamide

Accepted Answer

The answer of What is the name of the parent...

Question 7

Does isopropyl alcohol have a higher or lower boiling point than acetone? 
A) Higher, because isopropyl alcohol has hydrogen bonding.
B) Lower, because isopropyl alcohol has hydrogen bonding.
C) Higher, because isopropyl alcohol can form dispersion forces.
D) Lower, because isopropyl alcohol can form dispersion forces.
E) It is not possible to determine the answer based on the information provided.

Accepted Answer

The answer of Does isopropyl alcohol have a higher or...

Question 8

Below is a ball-and-stick model of acetone.Which of the following Lewis structures is acetone? 
A) structure a
B) structure b
C) structure c
D) structure d
E) structure e

Accepted Answer

The answer of Below is a ball-and-stick model of acetone.Which...

Question 9

Below are several different molecules.Which ones contain a ketone? 
A) All of these molecules contain a ketone.
B) All of these molecules except III contain a ketone.
C) Only I and II are ketones.
D) Only I and IV are ketones.
E) Only I is a ketone.

Accepted Answer

The answer of Below are several different molecules.Which ones contain...

Question 10

Which molecule is N-ethylpropanamide? A) CH₃CH₂CH₂NHCH₂CH₃ B) CH₃CH₂CONHCH₂CH₃ C) CH₃CONHCH₂CH₂CH₃ D) CH₃CH₂CH₂CONHCH₂CH₃ E) CH₃CH₂CNH₂CH₂CH₃

Accepted Answer

N-ethylpropanamide has a propanamide group (CH3CH2CONH-) with an ethyl group (CH2CH3) attached to the nitrogen atom.

Question 11

Provide the IUPAC name for the following carboxylic acid. 
A) 4,6-dimethylheptanoic acid
B) 2,4-dimethyl-7-heptanoic acid
C) 4,6-dimethylheptanal
D) 2,4-dimethyl-7-heptanal
E) 2,4-dimethyl-7-heptanol

Accepted Answer

The answer of Provide the IUPAC name for the following...

Question 12

What is the IUPAC name of the following molecule? 
A) 2-methylbutanal
B) 2-carbonylpropane
C) 2-pentanal
D) 3-methylbutanone
E) 3-methylbutanal

Accepted Answer

The answer of What is the IUPAC name of the...

Question 13

How many amides does the following peptide (a sequence of several amino acids)contain? 
A) 0
B) 1
C) 2
D) 3
E) 4

Accepted Answer

The answer of How many amides does the following peptide...

Question 14

What is the name of the carbonyl-containing compound that has the following general structure: RCO₂R? A) aldehyde B) amide C) ether D) ester E) carboxylic acid

Accepted Answer

The general structure RCO₂R represents an ester, which is characterized by a carbonyl group (C=O) adjacent to an oxygen atom that is connected to another carbon atom.

Question 15

Which functional group does NOT contain a carbonyl group?
A) amide
B) amine
C) ketone
D) carboxylic acid
E) ester

Accepted Answer

Amines do not contain a carbonyl group; they are characterized by the presence of a nitrogen atom bonded to one or more alkyl or aryl groups.

Question 16

Anandamide is a neurotransmitter that is involved in controlling mood and appetite.Which choice BEST describes the functional groups found in this molecule? 
A) alcohols, esters, alkenes, and ketones
B) alcohols, ketones, and alkenes
C) alcohols, phenols, and ketones
D) phenols, ethers, alkenes, esters, and ketones
E) phenols, ethers, alkenes, and ketones

Accepted Answer

The answer of Anandamide is a neurotransmitter that is involved...

Question 17

Which biomolecule contains three ester functional groups?
A) 
B) 
C) 
D) 
E)

Accepted Answer

The answer of Which biomolecule contains three ester functional groups?
A)...

Question 18

Which statement BEST describes the role of a neurotransmitter in the body?
A) Neurotransmitters facilitate the transfer of a signal from one neuron to the next, across the synaptic cleft.
B) Neurotransmitters facilitate the passage of an electrical impulse through a neuron.
C) Neurotransmitters facilitate the passage of an electrical impulse through an axon.
D) Neurotransmitters initiate an electrical response to a stimulus.
E) Neurotransmitters block all electrical impulses through neurons.

Accepted Answer

Neurotransmitters are chemicals that facilitate the transfer of signals from one neuron to the next across the synaptic cleft. They are released from the synaptic vesicles in the presynaptic neuron and bind to receptors on the postsynaptic neuron, enabling the transmission of the signal.

Question 19

A common misconception is that the following molecule contains two functional groups, an alcohol and a ketone, but this is not the case.What functional group does this molecule actually contain, and why is it important to differentiate between this functional group and an alcohol? 
A) This molecule contains a carboxylic acid, which reacts very differently than an alcohol.
B) This molecule contains a carboxylic acid, which is an isomer of an alcohol.
C) This molecule contains a carbonyl, which hydrogen bonds much more than an alcohol.
D) This molecule contains a carbonyl, which reacts very differently than an alcohol.
E) This molecule contains a carboxylic acid, which is unreactive.

Accepted Answer

The answer of A common misconception is that the following...

Question 20

Which statement about amides is FALSE?
A) The C-N bond has some double bond character.
B) Amides are found in proteins.
C) Amides act as organic bases.
D) Amides do not form ions at physiological pH.
E) Amides are polar functional groups.

Accepted Answer

Amides are generally weak bases and do not act as organic bases in the same way that amines do. Their nitrogen atom does not readily accept protons due to the resonance stabilization of the lone pair on nitrogen, which is partially delocalized to the carbonyl oxygen, reducing its availability to bond with protons.

Quiz 12: The Carbonyl Containing Functional Groups

Which of the following molecules is an aldehyde?

Which structure is NOT an amide?

Because L-dopa is metabolized into an active drug in the body, L-dopa is a________.

What do the following molecules have in common?

What is the role of dopamine in the body?

What is the name of the parent chain of the following molecule?

Does isopropyl alcohol have a higher or lower boiling point than acetone?

Below is a ball-and-stick model of acetone.Which of the following Lewis structures is acetone?

Below are several different molecules.Which ones contain a ketone?

Which molecule is N-ethylpropanamide?

Provide the IUPAC name for the following carboxylic acid.

What is the IUPAC name of the following molecule?

How many amides does the following peptide (a sequence of several amino acids) contain?

What is the name of the carbonyl-containing compound that has the following general structure: RCO₂R?

Which functional group does NOT contain a carbonyl group?

Anandamide is a neurotransmitter that is involved in controlling mood and appetite.Which choice BEST describes the functional groups found in this molecule?

Which biomolecule contains three ester functional groups?

Which statement BEST describes the role of a neurotransmitter in the body?

A common misconception is that the following molecule contains two functional groups, an alcohol and a ketone, but this is not the case.What functional group does this molecule actually contain, and why is it important to differentiate between this functional group and an alcohol?

Which statement about amides is FALSE?