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CMB_Unit 1: The Biochemistry of the Cell

Total questions: 16

Worksheet time: 7mins

Name
Class
Date
1.
Which group of organic molecules serve as long-term energy storage and make the cell membrane is?
a)
proteins
b)
carbohydrates
c)
lipids
d)
nucleic acids
2.

Amino acids are linked together by _______.

a)

hydrogen bonds

b)

peptide bonds

c)

covalent bonds

d)

ionic bonds

3.
Nucleotides are made up of three parts. The three parts are...
a)

DNA, RNA, and a nucleoside

b)

a fatty acid, a cholesterol, and steroid

c)
a carbohydrate, a protein, and a fat
d)

a sugar, a phosphate group, and a nitrogenous base

4.
The primary purpose the body uses monosaccharides for is?
a)

building muscles

b)

transport oxygen

c)

immediate energy

d)

generate heat

5.

The following are polysaccharides, except

a)

starch

b)

glycogen

c)

cellulose

d)
glycerol
6.

There are 20 different kinds of amino acids. These amino acids consist of five separate parts, except

a)

central carbon atom

b)

carboxyl group

c)

hydrogen

d)

carbon dioxide

7.

Which of the following is least likely to dissolve in water?

a)
nonpolar fats and oils
b)
polar sugar molecules
c)
salt made of a positive sodium ion and a negative chloride ion
d)
all of the substances will dissolve easily in water
8.

The following are building blocks of macromolecules, except

a)

fatty acid

b)

amino acid

c)

nucleotide

d)

acetic acid

9.

This is necessary to carry the instructions from DNA to the cytoplasm where the protein is made.

a)

nucleic acid

b)

ribonucleic acid

c)

nucleotide

d)

nucleoside

10.

Choose the correct answer from the given choices.

a)

saturated fats

healthy fats

butter and lard

b)

unsaturated fats

unhealthy fats

plant and fish fats

c)

saturated fats

unhealthy fats

animal fats

d)

unsaturated fats

healthy fats

animal fats

11.

Carbohydrates that consist of 3 to 10 monosaccharide units.

a)

oligosaccharides

b)

monosaccharides

c)

polysaccharides

d)

disaccharides

12.

Genes are made up of DNA, a nucleic acid made up of monomers called ________.

a)

nucleosides

b)

nucleotides

c)

purines

d)

pyrimidines

13.

Choose the wrong answer from the given choices.

a)

phosphate group + nucleoside = nucleotide

b)

sugar + nitrogenous base = nucleoside

c)

nitrogenous base + nucleoside = nucleotide

d)

nitrogenous base + sugar = nucleoside

14.

Home Activity 1 is made up of what biomolecules?

a)

proteins

b)

lipids

c)

carbohydrates

d)

nucleic acids

15.
What do disaccharides, such as sucrose, and polysaccharides, such as starch, have in common?
a)
They are lipids made of fatty acids.
b)
They are proteins made of amino acids.
c)
They are nucleic acids made of nucleotides.
d)
They are carbohydrates made of simple sugars.
16.

For 5 points. Explain briefly why humans can't digest cellulose.

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