Question 1

Which of the following correctly lists the hierarchy of biological organization from least inclusive to most inclusive?

Accepted Answer

molecule, organelle, cell, tissue, organ, organ system, organism, population, community, ecosystem

Question 2

A person eating a hamburger is mainly consuming ground-up beef muscle. What levels of biological organization are represented in this muscle?

Accepted Answer

organelle, cell, and tissue

Question 3

Which of the following is a trace element in the human body?

Accepted Answer

zinc

Question 4

Which statement best describes a chemical compound?

Accepted Answer

A compound contains two or more different elements in a fixed ratio.

Question 5

An uncharged atom of boron has an atomic number of 5 and an atomic mass of 11. How many electrons does boron have?

Accepted Answer

5

Question 6

If the atomic number of uranium is 92, how many neutrons does an atom of uranium-235 have in its nucleus?

Accepted Answer

143

Question 7

What type(s) of bond(s) is(are) found in a molecule of octane, the major component of gasoline?

Accepted Answer

only nonpolar covalent bonds

Question 8

You are experiencing acid indigestion due to excess stomach acid. After taking antacid tablets, what would you expect to find if you analyzed your stomach fluids 30 minutes later?

Accepted Answer

fewer hydrogen ions

Question 9

Which of the following statements about hydrocarbons is FALSE?

Accepted Answer

Hydrocarbons are inorganic compounds.

Question 10

Which molecule contains both a carboxyl group and an amino group?

Accepted Answer

amino acid

Question 11

The results of dehydration reactions can be reversed by

Accepted Answer

hydrolysis reactions

Question 12

Which list contains only polysaccharides?

Accepted Answer

cellulose, starch, and glycogen

Question 13

A phospholipid is composed of

Accepted Answer

one glycerol molecule linked to one phosphate group and two fatty acids

Question 14

What is the DNA sequence complementary to the DNA strand TCGATGG?

Accepted Answer

AGCTACC

Question 15

Which statement about cells is true?

Accepted Answer

All cells have internal structures that move.

Question 16

Which statement about electron microscopes is true?

Accepted Answer

Electron microscopes focus electron beams to create a magnified image of an object.

Question 17

Unlike animal cells, plant cells have ________ and ________. Unlike plant cells, animal cells have ________.

Accepted Answer

chloroplasts; cell walls; centrioles

Question 18

The main function of the rough endoplasmic reticulum is the production of

Accepted Answer

membrane and proteins secreted by the cell.

Question 19

The function of chloroplasts is

Accepted Answer

photosynthesis.

Question 20

Which process is endergonic?

Accepted Answer

the synthesis of glucose from carbon dioxide and water

General Biology Final Exam Review: Key Concepts and Step-by-Step Guidance

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