Question 1

Which of the following statements best describes a carbohydrate?

Accepted Answer

A major source of energy in our diet, made from carbon, hydrogen, and oxygen.

Question 2

Which formula correctly represents D-glucose?

Accepted Answer

$\mathrm{C_6H_{12}O_6}$

Question 3

Which of the following is NOT a monosaccharide?

Accepted Answer

Sucrose

Question 4

Which process converts the carbonyl group of a monosaccharide into a sugar alcohol?

Accepted Answer

Reduction

Question 5

Which of the following best describes a chiral molecule?

Accepted Answer

A molecule with at least one carbon atom bonded to four different groups.

Question 6

Which statement about D-glucose is correct?

Accepted Answer

It is an aldose found in fruits, corn syrup, and honey.

Question 7

Which of the following is a correct definition of a stereoisomer?

Accepted Answer

Molecules with the same molecular formula and connectivity but different spatial arrangement.

Question 8

Which of the following is a building block in sucrose, lactose, and maltose?

Accepted Answer

Glucose

Question 9

Which of the following best describes the difference between an alpha and beta isomer of glucose?

Accepted Answer

The orientation of the OH group on carbon 1 relative to carbon 2 in the ring.

Question 10

Which of the following is a correct example of a sugar alcohol used in sugar-free products?

Accepted Answer

D-sorbitol

Question 11

Which of the following is true about the structure of steroids?

Accepted Answer

They consist of four fused rings: three cyclohexane and one cyclopentane.

Question 12

Which process is used to produce soap from fats and oils?

Accepted Answer

Saponification

Question 13

Which of the following is a correct definition of a diastereomer?

Accepted Answer

Stereoisomers that are not mirror images of each other.

Question 14

Which of the following is a correct statement about unsaturated fatty acids?

Accepted Answer

They contain one or more double bonds between carbon atoms.

Question 15

Which of the following is a correct example of a polysaccharide?

Accepted Answer

Cellulose

Question 16

Which of the following best describes the primary structure of a protein?

Accepted Answer

The sequence of amino acids in a polypeptide chain.

Question 17

Which of the following is a correct statement about cholesterol?

Accepted Answer

It is a steroid that is a component of animal cell membranes.

Question 18

Which of the following is a correct definition of a zwitterion?

Accepted Answer

A molecule with both positive and negative charges but overall neutral.

Question 19

Which of the following best describes the tertiary structure of a protein?

Accepted Answer

The overall 3D shape formed by interactions between side chains.

Question 20

Which of the following is a correct statement about the process of hydrolysis?

Accepted Answer

It is the process of breaking a molecule into smaller units by adding water.

Carbohydrates, Lipids, and Proteins: GOB Chemistry Study Guide

Study Guide - Practice Questions