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Mader Biology Chapter 3

Total questions: 40

Worksheet time: 39mins

Name
Class
Date
1.

In science, organic means

a)

to identify those molecules that contain hydrogen and carbon.

b)

chemical free foods.

c)

to identify those molecules that are non-living.

d)

better for you, nutritionally.

2.

Steroids have a carbon skeleton of __________ fused carbon rings.

a)

2

b)

3

c)

4

d)

5

3.

Carbohydrates ratio of carbon, hydrogen and oxygen is

a)

1:2:3

b)

2:3:1

c)

1:2:1

d)

3:2:1

4.

When you bond two amino acids together it becomes a

a)

polypeptide

b)

peptide

c)

disaccharide

d)

lipid

5.

The structural polysaccharide for a crab’s exoskeleton is _____________.

a)

chitin

b)

peptidoglycan

c)

cellulose

d)

starch

6.

Which organic molecule is known as a fat?

a)

carbohydrate

b)

lipid

c)

protein

d)

nucleic acid

7.

________________________ is a specific combination of bonded atoms that always has the same chemical properties and always reacts the same way regardless of the carbon backbone to which it is attached.

a)

carbon backbone

b)

biomolecules

c)

disaccharides

d)

functional group

8.

A fatty acid is unsaturated if it

a)

contains hydrogen

b)

contains C-C double bonds

c)

contains carboxyl group

d)

is bound to a glycerol

9.

The monomer for proteins are called _______.

a)

nucleotides

b)

monosaccharides

c)

amino acids

d)

glycerol and fatty acids

10.

Which macromolecule is made up of simple sugars and complex sugars?

a)

lipids

b)

carbohydrates

c)

proteins

d)

nucleic acids

11.
DNA and RNA are examples of 
a)
Carbohydrates
b)
Lipids
c)
Proteins
d)
Nucleic Acids
12.
Nucleotides are monomers of
a)
Carbohydrates
b)
Lipids
c)
Proteins
d)
Nucleic Acids
13.
What is the function of nucleic acids?
a)
store genetic information
b)
store energy (long-term)
c)
store energy (short-term)
d)
build skin, hair, nails, muscles
14.
What type of macromolecule are enzymes?
a)
Protein
b)
Carbohydrate
c)
Lipid
d)
Nucleic Acid
15.

The study of chemicals that, in general, do not contain carbon is traditionally called what type of chemistry?

a)

bio

b)

inorganic

c)

physical

d)

analytical

16.

The breakdown of a disaccharide into 2 molecules (requiring H2O) is called?

a)

Photosynthesis

b)

Dehydration Synthesis

c)

Hydrolysis

d)

Respiration

17.
What is the difference between DNA and RNA from the point of view of the nitrogenous bases that are present in their nucleotides?
a)
In DNA, nucleotides can be made up of A, T, C, G. In RNA, nucleotides can also contain A, C or G; however, instead of T, they contain U.
b)
Purine and Pyrimidine
c)
Pyrimidine: Thymine, Cytosine (Urical)
d)
DNA, RNA
18.
What are the components of a nucleotide?
a)
nitrogen base, phosphate group, and pentose sugar
b)
pentose sugar, purine, and pyrimidine
c)
nitrogen base and a phosphate group
d)
DNA, phosphate group, monosaccharide
19.
How many different amino acids are there?
a)
15
b)
20
c)
25
d)
30
20.
The level of protein structure in which amino acids are bonded in a linear chain by peptide bonds.
a)
Primary
b)
Secondary
c)
Tertiary
d)
Quartenary
21.
___________ form the two layers of the cell membrane. 
a)
Carbohydrates 
b)
Proteins 
c)
Phospholipids 
d)
Cholesterol
22.

Monomer of triglyceride

a)

fatty acid

b)

Glycerol

c)

Fatty acid & glycerol

23.
What type of carbohydrate is shown?
a)
monosaccharide
b)
disaccharide
c)
polysaccharide
24.
The following equation represents the digestion of a protein.
Peptide + Water  --->  Amino acid + Amino Acid 
What type of reaction does this demonstrate?
a)
dehydration synthesis
b)
combustion
c)
hydrolysis
d)
single replacement
25.
Which of the following best describes the diagram?
a)
protein synthesis
b)
dehydration synthesis
c)
aerobic respiration
d)
hydrolysis
26.
What are the building blocks of proteins?
a)
amino acid
b)
fatty acid
c)
nucleotide
d)
lipid
27.
Monosaccharides are monomers of
a)
Carbohydrates
b)
Lipids
c)
Proteins
d)
Nucleic Acids
28.
Which of the following organic compounds is the main source of energy for living things?
a)
carbohydrates
b)
lipids
c)
nucleic acids
d)
proteins
29.
Lipids can be digested into what smaller subunits?
a)
nucleic acids
b)
amino acids
c)
fatty acids
d)
glucose
30.
Which is an example of a lipid?
a)
Candy
b)
Olive Oil
c)
DNA
d)
Meat
31.
Contains a phosphate, sugar and nitrogen base
a)
nucleic acid
b)
lipid
c)
carbohydrate
d)
protein
32.
Identify the macromolecule in the picture
a)
carbohydrate
b)
lipid
c)
protein
d)
nucleic acid
33.

Is the following chemical reaction illustrating condensation reaction or hydrolysis?

Starch + Water -------> Glucose

a)

Condensation Reaction

b)

Hydrolysis

34.
Water is used to break bonds between polymers
a)
dehydration synthesis
b)
Hydrolysis
35.
Produces water as a by-product
a)
Dehydration synthesis
b)
Hydolysis
36.
Connects monomers to form a polymer
a)
Dehydration synthesis
b)
hydrolysis
37.
Breaks up polymers, forming monomers
a)
dehydration synthesis
b)
hydrolysis
38.
Joins amino acids to form a protein
a)
Dehydration synthesis
b)
hydrolysis
39.
What is a hydrocarbon that contains only single bonds called? 
a)
organic  
b)
saturated
c)
unsaturated
d)
fully bonded
40.

Is the following compound saturated or unsaturated?

a)

Saturated

b)

Unsaturated

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