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MOLECULES OF LIFE

Total questions: 26

Worksheet time: 40mins

Name
Class
Date
1.
Sugar or starch that living things use for energy. 
a)
protein
b)
carbohydrate
c)
lipids
d)
nucleic acids
2.

Scientific name for fats and oils (made up of fatty acids)

a)

carbohydrates

b)

lipids

c)

proteins

d)

nucleic acids

3.

A large molecule made up of amino acids that is often plentiful in meat.

a)

carbohydrates

b)

lipids

c)

proteins

d)

nucleic acids

4.
Information molecules that provide directions to make proteins. Most important DNA & RNA 
a)
carbohydrates
b)
lipids
c)
nucleic acids
d)
proteins
5.
A ______________ is a smaller part of a polymer. 
a)
micromer
b)
macromer
c)
minimer
d)
monomer
6.
Many monomers make up a _______________. 
a)
multimer
b)
polymer
c)
pillowmer
d)
micromolecule
7.
______________ is the monomer that makes up lipids. 
a)
fatty acids
b)
sugar
c)
nucleotides
d)
amino acids
8.
__________ is the monomer that makes up proteins. 
a)
amino acids 
b)
sugar
c)
nucleotides
d)
fatty acids 
9.

What elements are present in this fatty acid chain?

a)

H, O, C

b)

H, C

c)

Ag, C, He

d)

Ti, Aq, O

10.

What elements are present in glucose?

a)

P, Ag, Si

b)

C, H, O

c)

H, N, S, C

d)

OH, CH2

11.
Which macromolecule is made of simple and complex sugars?
a)
lipids
b)
proteins
c)
carbohydrates
d)
nucleic acids
12.
DNA and RNA are examples of...
a)
proteins
b)
nucleic acids
c)
carbohydrates
d)
lipids
13.
Unsatured fats are healthier for you. Which is an example of an unsaturated fat?
a)
butter
b)
bacon
c)
olive oil
d)
eggs
14.
What is the function of nucleic acids?
a)
Stores energy
b)
Stores genetic information
c)
Movement
d)
Physical structure
15.
This is an example of a(n) ___________,
a)
amino acid
b)
monosaccharide
c)
disaccharide
d)
triglyceride
16.
The bond that joins amino acids are called:
a)
Peptide Bonds
b)
Ester Bonds
c)
Glycosidic Linkages
d)
Phosphodiester Bonds
17.

If a methyl group (-CH3), which does not like water, were at the 'R', the amino acid would likely be:

a)

Hydrophobic

b)

Hydrophilic

c)

Ionic

d)

Acidic

18.
Amino acids all have the same general structure except for the:
a)
Amino Group
b)
Carboxyl Group
c)
'R' Group
d)
Carbonyl Group
19.
The reaction used to digest and break the bond in red is:
a)
Hydrolysis
b)
Dehydration Synthesis
c)
Oxidation
d)
Single Displacement
20.
The number of amino acids used to produce proteins for all living things is:
a)
20
b)
∞
c)
15
d)
42
21.

Which of the following describes the shape of a DNA molecule?

a)

double helix

b)

sphere

c)

pyramid

d)

rectangle

22.

Name this structure

a)

double helix

b)

nucelotide

c)

twisted ladder

d)

hydrogen bond

23.

The letters of the DNA alphabet are:

a)

A, C, G and T

b)

A, O, G, and T

c)

C, G, P and T

d)

C, G, T and D

24.

The FULL NAME of the letter A from the DNA alphabet is:

a)

Adenine

b)

Albertine

c)

Augmentium

d)

Arginine

25.

In the DNA alphabet, T always pairs with:

a)

A

b)

T

c)

G

d)

C

26.

In the DNA alphabet, C always pairs with:

a)

A

b)

C

c)

T

d)

G

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