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Unit 2 - Biochemistry Review

Total questions: 38

Worksheet time: 22mins

Name
Class
Date
1.
Why are macromolecules also known as "polymers?"
a)
They are large molecules made up of many monomers. 
b)
They are large molecules added together. 
c)
There are many types of macromolecules. 
d)
Many organisms have macromolecules.
2.
What are the monomers (building blocks) of CARBOHYDRATES?
a)

Monosaccharides (simple sugars)

b)
Amino Acids
c)
Nucleotides
d)

Fatty Acidy & Glycerol

3.

What are the monomers (building blocks) of LIPIDS?

a)

Monosaccharides (simple sugars)

b)
Amino Acids
c)
Nucleotides
d)

Fatty Acidy & Glycerol

4.

What are the monomers (building blocks) of PROTEINS?

a)

Monosaccharides (simple sugars)

b)
Amino Acids
c)
Nucleotides
d)

Fatty Acidy & Glycerol

5.

What are the monomers (building blocks) of NUCLEIC ACIDS?

a)

Monosaccharides (simple sugars)

b)
Amino Acids
c)
Nucleotides
d)

Fatty Acidy & Glycerol

6.

What is the primary function of PROTEINS?

a)
Source of energy
b)
Long term storage of energy
c)

Storing and Transmitting genetic information

d)

Enzymes that control reaction rates

7.

What is the primary function of NUCLEIC ACIDS?

a)
Source of energy
b)
Long term storage of energy
c)

Storing and Transmitting genetic information

d)

Enzymes that control reaction rates

8.
What is the primary function of CARBOHYDRATES?
a)
Source of energy
b)
Long term storage of energy
c)

Storing and Transmitting genetic information

d)

Enzymes that control reaction rates

9.

What is the primary function of LIPIDS?

a)
Source of energy
b)
Long term storage of energy
c)

Storing and Transmitting genetic information

d)

Enzymes that control reaction rates

10.

Which elements are found in carbohydrates?

a)

C H O

b)

C H O N P

c)

C H O N

11.

Which elements are found in proteins?

a)

C H O

b)

C H O N P

c)

C H O N

12.

Which elements are found in lipids?

a)

C H O

b)

C H O N P

c)

C H O N

13.

Which elements are found in nucleic acids?

a)

C H O

b)

C H O N P

c)

C H O N

14.

DNA and RNA are examples of ______.

a)

proteins

b)

lipids

c)

nucleic acids

d)

carbohydrates

15.

Waxes, fats, and oils are ____.

a)

proteins

b)

lipids

c)

nucleic acids

d)

carbohydrates

16.

Lots of jobs, including building muscles and bones.

a)

proteins

b)

lipids

c)

nucleic acids

d)

carbohydrates

17.

Glycogen, starch, and glucose are all examples of ______.

a)

proteins

b)

lipids

c)

nucleic acids

d)

carbohydrates

18.
The graph shows how enzymes affect reactions in cells. Which statement best summarizes the information shown in the graph?
a)
Enzymes increase the energy of the reactants.
b)
Enzymes decrease the energy level of the products.
c)
Enzyme decrease the activation energy of the reaction.
d)
Enzymes reverse the direction of the reaction.
19.
Enzymes are...
a)
nucleic acids
b)
proteins
c)
lipids
d)
carbohydrates
20.
What is the function of an enzyme?
a)
enzymes break themselves into small pieces
b)
enzymes slow down chemical reactions
c)
enzymes speed up chemical reactions
d)
enzymes combine products to form reactants 
21.

Which letter is the enzyme?

a)

B

b)

C

c)

D

d)

E

22.

Which letter is the substrate?

a)

B

b)

C

c)

D

d)

E

23.

Which letter is the active site?

a)

B

b)

C

c)

D

d)

E

24.
What happens to an enzyme when it is denatured?
a)
Activation energy is lowered.
b)

It's structure changes and it works better.

c)

It's structure changes and it does not function.

d)

Activation energy is raised and it works better.

25.

Which letter represents a protein channel?

a)
A
b)
C
c)
D
d)
26.

What letter represents cholesterol?

a)

D

b)
B
c)
C
d)
27.

What type of molecule is B? (top of glycoprotein)

a)

carbohydrate

b)

nucleic acid

c)

lipid

d)

cholesterol

28.

What is the function of cholesterol in the cell membrane?

a)

used to move large molecules across the cell membrane

b)

maintains stability and the fluidity of the cell membrane

c)

sending signals to other cells and cell identification

d)

limit what comes into the cell

29.

What is the function of protein channels (integral) in the cell membrane?

a)

used to move large molecules across the cell membrane

b)

maintains stability and the fluidity of the cell membrane

c)

sending signals to other cells and cell identification

d)

limit what comes into the cell

30.

What structure makes up most of the "bilayer" (double layer)?

a)

proteins

b)

phospholipids

c)

glycoproteins

d)

cholesterol

31.

What part of a phospholipid is hydrophobic?

a)

the head (a)

b)

the tails (b)

c)

the entire structure (a and b)

32.

What does hydrophobic mean?

a)

water loving because attracts to water

b)

water fearing because it is respelled by water

33.

What does hydrophilic mean?

a)

water loving because attracts to water

b)

water fearing because it is respelled by water

34.

What causes enzymes to become denatured?

a)

changes in the amount of enzyme

b)

only changes in pH

c)

changes in pH and temperature

d)

only changes in temperature

35.

What is the make function of the cell membrane?

a)

controls what comes in and out of the cell

b)

speed up reaction rates

c)

photosynthesis

d)

it acts like a wall

36.

Water takes longer to heat up; can absorb a lot of energy without changing temperature

a)

high specific heat

b)

surface tension

c)

capillary action

d)

adhesion

37.

Which property of water allows this insect to "walk on water"?

a)

surface tension

b)

high specific heat

c)

capillary action

d)

adhesion

38.

Water has a positive charge on one end and negative charge on other end

a)

polarity

(polar molecule)

b)

capillary action

c)

surface tension

d)

heat capacity