AnswersBiology - SC3209 CRUnit Test

Macromolecules Answers

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1
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Which macromolecule provides a person with the highest amount of energy per mass?

A
lipids
B
carbohydrates
C
nucleic acids
D
proteins
2
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Which substance is a nucleic acid?

A
amino acid
B
fat
C
polysaccharide
D
RNA
3

At which of these locations is a dietician least likely to work?

A
school
B
theater
C
hospital
D
nursing home
4

How does a dietician help a patient?

A
A dietician treats vision problems.
B
A dietician cures genetic disorders.
C
A dietician performs surgery on patients to improve digestion.
D
A dietician helps patients get the proper amount of nutrients.
5

Which list correctly shows carbohydrates in size from smallest to largest?

A
monosaccharide, disaccharide, polysaccharide
B
disaccharide, polysaccharide, monosaccharide
C
disaccharide, monosaccharide, polysaccharide
D
polysaccharide, disaccharide, monosaccharide
6

Cellulose is found throughout the cell walls of plant cells. Cellulose makes cell walls rigid, which indicates that cellulose is a

A
carbohydrate.
B
lipid.
C
nucleic acid.
D
protein.
7

Which statement correctly compares nucleic acids and carbohydrates?

A
They both contain carbon, but only nucleic acids contain hydrogen.
B
They both contain carbon, hydrogen, and oxygen in a 1:2:1 ratio.
C
They both contain carbon, but only carbohydrates contain oxygen.
D
They both contain carbon, but only nucleic acids contain phosphorous.
8

If Tyler does not eat a diet that includes essential amino acids, his cells will not be able to build

A
nucleic acids.
B
certain proteins.
C
cell membranes.
D
certain carbohydrates.
9

Which statement best describes the components of nucleic acids?

A
They are made up of chains of amino acids.
B
They are made up of carbon, hydrogen, and oxygen only.
C
They are made up almost entirely of carbon and hydrogen.
D
They are made up of nitrogenous bases, sugars, and phosphates.
10

The picture shows a carafe of olive oil.What is one of the primary functions of this food in the body?

Question illustration
A
building proteins
B
storing energy
C
providing structure to cell walls
D
carrying genetic information

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