Biology Life on Earth with Physiology 10th Edition By Audesirk - Test Bank

3.1   Multiple Choice Questions

1) Prions are known to cause

A) mad cow disease.

B) the common cold.

C) herpes.

D) sickle cell anemia.

Answer:  A

Diff: 2

Section:  3.1

Skill:  Knowledge/Comprehension

2) Which of the following is NOT an organic molecule?

A) Protein

B) Nucleic acid

C) Monosaccharide

D) Carbon monoxide

E) Lipid

Answer:  D

Diff: 2

Section:  3.1

Skill:  Knowledge/Comprehension

3) You are telling your friend that organic molecules are all made up of carbon backbones with hydrogens. She doesn't understand how there can be so many different organic molecules if they all are made up of the same basic components. You explain that organic molecules

A) vary because they possess different isotopes of carbon.

B) vary because they possess different functional groups.

C) actually all have the same structure but differ in the number of electrons.

D) are different because of the different types of hydrogen bonds that form.

Answer:  B

Diff: 2

Section:  3.1

Skill:  Application/Analysis

4) Which of the following best explains the molecular complexity of living organisms?

A) The large number of different monomers allows for the construction of many polymers.

B) Each organism has its own unique set of monomers for use in constructing polymers.

C) Condensation reactions can create different polymers because they can combine virtually any molecules in the cell.

D) Although there are not many biological molecules in cells, each one has many different functions.

E) A small number of monomers can be assembled into large polymers with many different sequences.

Answer:  E

Diff: 1

Section:  3.2

Skill:  Application/Analysis

5) Large biological molecules are synthesized by removing

A) carbon.

B) covalent bonds.

C) water.

D) oxygen.

E) peptides.

Answer:  C

Diff: 1

Section:  3.2

Skill:  Knowledge/Comprehension

6) What type of chemical reaction results in the breakdown of organic polymers into their respective subunits?

A) Condensation

B) Oxidation

C) Hydrolysis

D) Ionization

Answer:  C

Diff: 2

Section:  3.2

Skill:  Knowledge/Comprehension

7) Which of the following reactions requires the removal of water to form a covalent bond?

A) Glycogen → glucose subunits

B) Peptide → alanine + glycine

C) Cellulose → glucose

D) Glucose + galactose → lactose

E) Fat → fatty acids + glycerol

Answer:  D

Diff: 2

Section:  3.2

Skill:  Application/Analysis