Donate a proton (H\textsuperscript{+}) to solution.

Question 1

Which of the following best describes the main structural forms of lipids?

Accepted Answer

Ring and chain.

Question 2

Nucleic acids primarily function to store and transfer genetic information, while carbohydrates primarily provide:

Accepted Answer

Energy and structural support.

Question 3

Which process involves the removal of water to form a new bond between monomers?

Accepted Answer

Dehydration synthesis.

Question 4

What type of bond links nucleotides together in a nucleic acid polymer?

Accepted Answer

Phosphodiester bond.

Question 5

The arrangement where hydrophilic heads face outward and hydrophobic tails face inward is characteristic of:

Accepted Answer

Phospholipid structure and membranes.

Question 6

Which of the following is generally insoluble in water due to nonpolar hydrocarbon tails?

Accepted Answer

Fat.

Question 7

Lipids' solubility in water is best explained by:

Accepted Answer

Their nonpolar hydrocarbon tails.

Question 8

Which of the following best describes a nucleic acid?

Accepted Answer

A macromolecule with phosphodiester bonds.

Question 9

The tendency of nonpolar molecules to aggregate in water, minimizing their exposure to water molecules, is called the:

Accepted Answer

Hydrophobic effect.

Question 10

Cholesterol is classified as which type of lipid?

Accepted Answer

Steroid.

Question 11

Glycogen serves as:

Accepted Answer

A carbohydrate for short-term energy storage.

Question 12

Which of the following is a carbohydrate monomer?

Accepted Answer

Triose/Pentose/Hexose.

Question 13

The monomers of nucleic acids are:

Accepted Answer

Nucleotides.

Question 14

Saturated fatty acids differ from unsaturated fatty acids in that saturated fatty acids:

Accepted Answer

Have no double bonds, making them more rigid.

Question 15

Which of the following is a primary function of carbohydrates in animal cells?

Accepted Answer

Energy storage and structural support.

Question 16

Monosaccharides are best described as:

Accepted Answer

Monomers of carbohydrates.

Question 17

The structure of carbohydrates is characterized by the presence of which functional groups?

Accepted Answer

Carbonyl and hydroxyl groups.

Question 18

A functional group that acts as an acid in biological molecules is most likely to:

Accepted Answer

Donate a proton (H	extsuperscript{+}) to solution.

Question 19

Which class of biological macromolecules is primarily responsible for storing and transmitting genetic information?

Accepted Answer

Nucleic acids.

Question 20

DNA is double-stranded while RNA is usually single-stranded. This structural difference allows RNA to:

Accepted Answer

Be more flexible and participate in diverse cellular functions.

Fundamental Biomolecules and Their Functions in General Biology

Study Guide - Practice Questions