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Biochemistry Review (B1.1-1.2)

Total questions: 22

Worksheet time: 17mins

Name
Class
Date
1.
In polymerization, complex molecules are formed by the joining together of
a)
macromolecules.
b)
carbohydrates.
c)
polymers.
d)
monomers.
2.

What is the function of a carbohydrate?

a)

Insulation

b)

A quick source of energy

c)

Enzymes to speed up reactions

d)

Holds genetic information

3.

Which of the following is made up of repeating subunits of Beta glucose?

a)

Starch

b)

Protein

c)

Fats

d)

Cellulose

4.

A polymer of alpha-D-glucose found in plants has mostly 1,4 linkages and some 1,6 linkages. Which molecule fits this description?

a)

glycogen

b)

cellulose

c)

amylose

d)

amylopectin

5.

These biomolecules are, in order of appearance...

a)

cis and trans saturated fatty acids

b)

cis and trans unsaturated fatty acids

c)

trans and cis saturated fatty acids

d)

trans and cis unsaturated fatty acids

6.

The diagram shows the structure of palmitic acid. What type of fatty acid is palmitic acid?

a)

it is monosaturated

b)

it is polyunsaturated

c)

it is saturated

d)

it is a trans-fatty acid

7.

Which molecule diagram corresponds to the name?

a)
b)
c)
d)
8.
Saturated fat = single bonds between carbon atoms in hydrocarbon chain
Polyunsaturated fat = ?
a)
covalent bonds between carbon atoms in hydrocarbon chain
b)
ionic bonds between carbon atoms in hydrocarbon chain
c)
chemical bonds between carbon atoms in hydrocarbon chain
d)
double bonds between carbon atoms in hydrocarbon chain
9.
Organic compounds are always based on what two elements?
a)
hydrogen and oxygen
b)
nitrogen and oxygen
c)
hydrogen and carbon
d)
nitrogen and carbon
10.

The four organic compounds found in living things are?

a)

Carbohydrates, Lipids, Nucleic Acids, and Oxygen

b)

Carbohydrates, Lipids, Proteins, and Carbon

c)

Carbohydrates, Lipids, Proteins, Nucleic Acids

d)

Carbon, Lipids, Proteins, Nucleic Acids

11.
This is an example of 
a)
Lipid 
b)
Carbohydrate 
c)
Protein
d)
Nucleic Acid
12.

Which biomolecule is properly matched to its monomer?

a)

Nucleic acid: amino acid

b)

Protein (polypeptide):fatty acids

c)

Lipid: Nucleotide

d)

carbohydrate: monosaccharide (glucose)

13.

One function of lipids is to store energy. What is another function of lipids in the human body?

a)

To form plasma (cell) membranes

b)

To make energy from the sun

c)

To control chemical reactions

d)

To provide quick energy for the cell

14.
Which major macromolecule is being represented in this image? 
a)
carbohydrate
b)
lipid
c)
protein
d)
nucleic acid
15.

What kinds of environmental factors can denature an enzyme?

a)

Water and salt

b)

Temperature and pH

c)

Lipids and Carbohydrates

d)

Blood

16.
Which is a least likely primary function of proteins?
a)
to act as an organic catalyst
b)
to supply short-term energy
c)
to build and repair damaged cells
d)
to defend against foreign invaders
17.
What is a protein: 
a)
A polymer composed of many sugars.
b)
A polymer composed of many amino acids. 
c)
A polymer composed of fatty acids. 
d)
A polymer composed of nucleotides. 
18.
What is a peptide bond?
a)
Bond that holds two amino acids together.
b)
A bond that holds hydrogen and oxygen molecules together.
c)
A bond that holds the phosphate group of one nucleotide and a sugar of a neighboring nucleotide.
d)
A bond that is formed by the sharing of electrons.
19.
Which macromolecule is this?
a)
carbohydrate
b)
lipid
c)
protein
d)
nucleic acid
20.

What is a long chain of amino acids called?

a)

Polysaccharide

b)

Lipid

c)

Carbohydrate

d)

Polypeptide

e)

Nucleic acid

21.
The following figure is illustrating
a)
Dehydration Synthesis
b)
Hydrolysis
c)

Condensation

22.

What type of bonds are formed by dehydration synthesis (condensation) and connect monomers together in a polymer?

a)

Ionic

b)

Covalent

c)

Hydrogen

d)

Van der Waals

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