Question 1

Which of the following best describes the relationship between a cell and a tissue, as compared to an atom and a molecule?

Accepted Answer

A cell is to a tissue as an atom is to a molecule.

Question 2

After eating a large amount of sugar, your pancreas releases insulin to lower your blood sugar back to normal. This is an example of which characteristic of life?

Accepted Answer

Homeostasis

Question 3

Which of the following statements about ions is correct?

Accepted Answer

Positively charged ions are called cations.

Question 4

Ionic bonds involve which of the following?

Accepted Answer

Electrostatic interactions between anions and cations.

Question 5

A substance with a pH of 3 is:

Accepted Answer

More acidic than a substance with a pH of 5.

Question 6

How many neutrons does a typical carbon atom have, given its atomic number is 6 and its atomic mass is approximately 12?

Accepted Answer

$$12 - 6 = 6$$

Question 7

Which of the following is the correct order of the Biological Levels of Organization from largest to smallest?

Accepted Answer

Biosphere $$\rightarrow$$ Ecosystem $$\rightarrow$$ Community $$\rightarrow$$ Population $$\rightarrow$$ Organism

Question 8

Which molecule is used to break polymers into monomers during hydrolysis?

Accepted Answer

Water

Question 9

What is the name for a carbohydrate made of two monomers?

Accepted Answer

Disaccharide

Question 10

Which of the following is the monomer of a protein?

Accepted Answer

Amino acid

Question 11

Which of these is NOT a base found in DNA (deoxyribonucleic acid)?

Accepted Answer

Uracil

Question 12

A triglyceride molecule is composed of which of the following components?

Accepted Answer

Three fatty acids and one glycerol

Question 13

Which organelle is the site of cellular respiration and produces most of the cell's ATP?

Accepted Answer

Mitochondrion

Question 14

Which organelle is responsible for digesting old organelles and food particles using enzymes in a low pH environment?

Accepted Answer

Lysosome

Question 15

Which of the following best describes a saturated fatty acid?

Accepted Answer

It contains no double bonds between carbon atoms.

Question 16

Which of the following best explains why water is able to dissolve many substances?

Accepted Answer

Water is a polar molecule, allowing it to form hydrogen bonds with many solutes.

Question 17

A student observes that the number of air bubbles produced by a plant decreases as the depth of water increases beyond 10 meters. What is the most likely explanation for this trend?

Accepted Answer

Less light is available for photosynthesis at greater depths.

Question 18

Which of the following best describes the function of the Golgi apparatus?

Accepted Answer

It accepts, sorts, packs, and sends off proteins in vesicles.

Question 19

Which of the following best describes a hydrogen bond?

Accepted Answer

A weak attraction between a hydrogen atom in one polar molecule and a negative region in another molecule.

Question 20

Which property of water allows it to 'stick' to the sides of a glass, as seen when water forms a meniscus?

Accepted Answer

Adhesion

General Biology I: Foundational Concepts and Biological Molecules

Study Guide - Practice Questions

Study Guide - Flashcards