Organic Chemistry (Ch03) Practice Questions printable pdf download

Organic chemistry (ch03) Practice Questions

Name:

1. Sugar is an organic molecule because

A) it is complex B) it has carbon

C) it has water

D) it has oxygen

E) All of the previous

2. What is true when comparing macromolecules (polymers) like proteins and simple organic molecules?

A) macromolecules are not actually organic molecules

B) some organic molecules constitute units that repeat hundreds of times to form a macromolecule

like proteins, nucleic acids, and some polysaccharides

C) all organic molecules can form part of a macromolecule

D) macromolecules and organic molecule are composed of different atoms

3. Two sugar molecules that have the same number and type of atoms give a different result when

chemically tested with the same reagent. This may happen most likely because

A. The amount of each one in the test tubes is different

B. The spatial arrangement of the atoms is different, and both molecules do not react in the same way

C. The test tubes may be contaminated with a third molecule

D. options B and C are correct

4. All of the following are monosaccharides (simple sugars) except____

A) fructose

B) cellulose

C) glucose

D) deoxyribose

5. Which of the following organic molecules stores energy and provides insulation?

A) Proteins

B) lipids

C) nucleic acids

D) amino acids

6. The monomers of polysaccharides are

A) amino acids

B) nucleotides

C) steroids

D) sugars like glucose

E) lipids

7. Which of the following are macromolecules? (MARK ALL THAT APPLY)

A) sucrose and glucose

B) fructose and deoxyribose

C) DNA and RNA

D) starch and glycogen

8. Glycogen is a polysaccharide made of glucose units used for energy storage in

A) plants

B) animals

C) both plants and animals

D) fungi

9. Which of the following is true of cellulose?

A) Plants store glucose as cellulose

B) Animals store glucose as cellulose

C) Plants store energy as cellulose

D) The structure of plants’ cell walls is made of cellulose

10. What do wax and testosterone have in common?

A) both are proteins

B) both are steroids

C) both are true fats

D) both are lipids

11. Every protein has a unique shape and function because

A) each protein has a unique sequence of nucleotides

B) each protein has a unique sequence of amino acids in its primary structure

C) the bonds between the amino acids vary between proteins

D) the number of nitrogen atoms in each amino acid differs

General Biology

Instructor: José Bava, Ph.D

Organic Chemistry (Ch03) Practice Questions

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