Question 1

Which of the following statements correctly describes the difference between amylose and cellulose?

Accepted Answer

Amylose contains $$\alpha(1 \rightarrow 4)$$ glycosidic bonds, while cellulose contains $$\beta(1 \rightarrow 4)$$ glycosidic bonds.

Question 2

Which of the following best describes a chiral carbon atom?

Accepted Answer

A carbon atom bonded to four different atoms or groups.

Question 3

Which of the following disaccharides is a nonreducing sugar?

Accepted Answer

Sucrose

Question 4

A fatty acid with the formula $$\mathrm{C$$_{18}$$H_{34}O_2$} is $$most likely:

Accepted Answer

A monounsaturated fatty acid

Question 5

Which of the following statements about the secondary structure of proteins is correct?

Accepted Answer

It involves hydrogen bonding between backbone atoms.

Question 6

Which of the following is true regarding the difference between DNA and RNA?

Accepted Answer

RNA contains uracil instead of thymine.

Question 7

Which of the following best describes the process of saponification?

Accepted Answer

The hydrolysis of triacylglycerols with a base to produce glycerol and soap.

Question 8

A peptide has the sequence Gly-Ala-Ser. Which end is the N-terminus?

Accepted Answer

Gly

Question 9

Which of the following is an essential amino acid?

Accepted Answer

Leucine

Question 10

Which of the following statements about enantiomers is correct?

Accepted Answer

They rotate plane-polarized light in opposite directions.

Question 11

Which of the following best describes the difference between fats and oils?

Accepted Answer

Fats are solid at room temperature due to a higher proportion of saturated fatty acids.

Question 12

Which of the following is a correct complementary DNA sequence for the strand 5'-ATGCCG-3'?

Accepted Answer

3'-TACGGC-5'

Question 13

Which of the following statements about the tertiary structure of proteins is correct?

Accepted Answer

It involves interactions between R groups of amino acids.

Question 14

Which of the following is a reducing sugar?

Accepted Answer

Lactose

Question 15

Which of the following best describes the function of bile salts in the human body?

Accepted Answer

They emulsify dietary fats, aiding in their digestion.

Question 16

Which of the following is true about the anomeric carbon in a Haworth projection of glucose?

Accepted Answer

It is the carbon that was the carbonyl carbon in the open-chain form.

Question 17

Which of the following is a correct description of a nucleotide?

Accepted Answer

A base, a sugar, and a phosphate group.

Question 18

Which of the following best describes the process of translation in cells?

Accepted Answer

Synthesizing proteins from an mRNA template.

Question 19

Which of the following is a property of essential fatty acids?

Accepted Answer

They are polyunsaturated and must be obtained from the diet.

Question 20

A mutation that results in the substitution of one amino acid for another in a protein is called:

Accepted Answer

A missense mutation

Comprehensive Study Notes: Carbohydrates, Lipids, Proteins, and Nucleic Acids

Study Guide - Practice Questions