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
11

How are proteins and nucleic acids related?

A
They both provide energy.
B
They both carry genetic information.
C
The structure of proteins is determined by nucleic acids.
D
The subunits of nucleic acids are also the subunits of proteins.
12

Sebastian wants to make ball-and-stick models of the four macromolecules. He has colored balls for each of the elements in these molecules, including the following. red: hydrogen black: carbon purple: oxygen green: nitrogenWhich molecule could he make that consists of long chains of red and black colored balls?

A
carbohydrates
B
lipids
C
nucleic acids
D
proteins
13

Glycogen is an energy-storage molecule in humans. A hormone that is called insulin controls the storage of glycogen in the liver. Insulin is made up of amino acids. Which statement correctly identifies the types of macromolecules that are described?

A
Glycogen is a protein, and insulin is a lipid.
B
Glycogen is a protein, and insulin is a protein.
C
Glycogen is a carbohydrate, and insulin is a lipid.
D
Glycogen is a carbohydrate, and insulin is a protein.
14

The picture shows a jar of honey.Which statement is correct about this food?

Question illustration
A
It contains disaccharides, a complex type of lipid.
B
It contains monosaccharides, the simplest carbohydrate
C
It contains starch, which gives it a sweet taste.
D
It contains lipids, which give it a sweet taste.

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