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WorksheetsBiochemistry
Total questions: 15
Worksheet time: 8mins
Name
Class
Date
1.
In red blood cells, a protein called ________ binds to oxygen.
a)
hemoglobin
b)
ATP
c)
RNA
d)
DNA
2.
The building blocks of nucleic acids are called ...
a)
amino acids
b)
nucleotides
c)
carbohydrates
d)
proteins
3.
ATP is...
a)
a unit of energy in the cell
b)
a type of lipid
c)
a molecule of DNA
4.
Phospholipids have a _________ head and a __________ tail.
a)
hydrophilic, hydrophobic
b)
hydrophobic, hydrophilic
5.
Hydrophilic technically means...
a)
water-hating
b)
water-loving
6.
Enzymes are _________ that __________ chemical reactions.
a)
proteins, slow down
b)
proteins, speed up
c)
lipids, slow down
d)
lipids, speed up
7.
RNA is an example of a ...
a)
nucleic acid
b)
phosphate group
c)
protein
d)
carbohydrate
8.
The cell membrane is formed mostly by...
a)
carbohydrates
b)
proteins
c)
phospholipids
d)
nucleic acids
9.
Nucleotides are made up of three parts. The three parts are...
a)
DNA, RNA, and a sugar
b)
a lipid, a fat, and an oil
c)
a carbohydrate, a protein, and a fat
d)
a sugar, a phosphate, and a base
10.
Regulatory substances that are in an organism are called...
a)
enzymes
b)
hormones
11.
Carbohydrates are made up of...
a)
monosaccharides
b)
lipids
c)
oils
d)
proteins
12.
A plant is an example of an autotroph because ...
a)
they make their own food
b)
they eat other organisms for food
13.
Amino acids are the subunits of ...
a)
proteins
b)
carbohydrates
c)
nucleic acids
d)
lipids
14.
___________ are the main source of energy for cells.
a)
Proteins
b)
Lipids
c)
Nucleic acids
d)
Carbohydrates
15.
Metabolism is the sum of an organism's chemical processes.
a)
True
b)
False
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