Question 1

Which of the following molecules contains a nonpolar covalent bond?

Accepted Answer

Cl$$_2$$

Question 2

When a potassium atom bonds with a chlorine atom, what is likely to happen to the electrons?

Accepted Answer

Potassium donates an electron to chlorine, forming ions.

Question 3

Which of the following molecules contains a polar covalent bond?

Accepted Answer

H$$_2O$$

Question 4

Which arrow indicates an atom that can participate in a hydrogen bond?

Accepted Answer

Arrow pointing to an oxygen atom in a hydroxyl group

Question 5

A hydrophilic substance is one that:

Accepted Answer

Has an affinity for water

Question 6

The DNA of the parasite that causes malaria is 9% C. What is the percentage of T?

Accepted Answer

41%

Question 7

Polymers are made of monomer subunits that are joined by what type of bonds?

Accepted Answer

Covalent bonds

Question 8

Which of the following amino acids would most likely attract negatively charged ions like Cl$$^-$$?

Accepted Answer

Arginine

Question 9

Which of these possible types of interactions between side chains is strongest?

Accepted Answer

Disulfide bridge

Question 10

Which of the following describes the properties of the circled region in a fatty acid chain?

Accepted Answer

Saturated and hydrophobic

Question 11

What functional group is much more abundant in starch than in cholesterol, and helps explain the greater solubility of starch in water?

Accepted Answer

Hydroxyl (–OH)

Question 12

Which of the following reactions would occur in the lysosome?

Accepted Answer

Polysaccharide to monosaccharide

Question 13

Which of the following organelles can be found in both prokaryotes and eukaryotes?

Accepted Answer

Ribosome

Question 14

Which of the following statements about the endomembrane system is correct?

Accepted Answer

The nuclear envelope is continuous with the endoplasmic reticulum.

Question 15

Which of the following is NOT a function of the cytoskeleton in eukaryotic cells?

Accepted Answer

Movement of RNA molecules from the nucleus to the cytoplasm

Question 16

Which of the following is a common trait of chloroplasts and mitochondria?

Accepted Answer

Both contain their own DNA

Question 17

Which organelle is responsible for producing ATP in eukaryotic cells?

Accepted Answer

Mitochondrion

Question 18

Which of the following statements about phospholipids is true?

Accepted Answer

Phospholipids have both hydrophilic and hydrophobic regions.

Question 19

Which of the following molecules is most likely to be found in the plasma membrane of animal cells?

Accepted Answer

Cholesterol

Question 20

Which of the following is NOT a lipid?

Accepted Answer

Starch

General Biology: Foundations of Chemistry, Macromolecules, and Cell Structure

Study Guide - Practice Questions