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Chapter 6 Test

Total questions: 40

Worksheet time: 37mins

Name
Class
Date
1.
What is the monomer for proteins?
a)
monosaccharides
b)
amino acids
c)
nucleotides
d)
glycerine & fatty acids
2.
What is the monomer for carbohydrates?
a)
monosaccharide
b)
amino acids
c)
nucleotides
d)
glycerin & fatty acids
3.
What is the monomer for nucleic acids?
a)
monosaccharide
b)
amino acids
c)
nucleotides
d)
glycerin & fatty acids
4.
What is the monomer for lipids? 
a)
monosaccharide
b)
amino acids
c)
nucleotides
d)
glycerin & fatty acids
5.
Which elements are found in all 4 macromolecules?
a)
C, H, O
b)
C, H, N
c)
H, N, P
d)
O, P, S
6.
An isotope of carbon is different from carbon in what way?
a)
number of protons
b)
number of neutrons
c)
number of electrons
d)
atomic number
7.
How do buffers help people?
a)
decrease the pH
b)
raises and lowers the pH
c)
balance the pH
d)
does not affect the pH
8.

How can a covalent molecule be polar?

a)

there are no polar covalent molecules

b)

one atom gives the electrons

c)

one atom takes the electrons

d)

uneven sharing of electrons

9.
Where can you find the number of valence electrons (electrons in the outer shell) for each element?
a)
atomic number
b)
period number
c)
group number
d)
mass number
10.

The "my plate" guidelines divide which food groups into approximately 1/4 divisions of the plate?

a)

carbohydrates, dairy, fruit, vegetables

b)

oil, protein, fruit, vegetables

c)

carbohydrates, oil, dairy, protein

d)

carbohydrates, protein, fruit, vegetables

11.
What type of atoms are in an ionic bond?
a)
metal & nonmetal & metal
b)
metal & metal
c)
metal & nonmetal
d)
nonmetal & nonmetal
12.
Which are the correct charges of a proton?
a)
positive
b)
negative
c)
neutral
d)
none of these
13.

What is the purpose of an enzyme in a biological reaction?

a)

to allow reactions to happen

b)

to maintain reactions

c)

to slow down reactions

d)

to speed up reactions

14.
Which macromolecule functions as a barrier?
a)
proteins
b)
nucleic acids
c)
carbohydrates
d)
lipids
15.
What type of atoms are in a covalent bond?
a)
metal, nonmetal , metal
b)
metal & metal
c)
metal & nonmetal
d)
nonmetal & nonmetal
16.
Ions form when atoms give or take electrons. Which number of valence electrons increases the chance of forming an ion?
a)
4
b)
8
c)
1
d)
12
17.
Which of the following is an example of a chemical formula?
a)
NaCl
b)
Br
c)
Ag
d)
H-O-H
18.
If atoms in a covalent bond share electrons, what do atoms in ionic bonds do?
a)
share electrons too 
b)
give or take electrons
c)
take turns with the electrons
d)
none of these
19.
What is activation energy?
a)
heat left after a reaction
b)
overall heat
c)
heat needed to start a reaction
d)
none of these
20.
Saturated and unsaturated lipids (fats) tells about the number of bonds. Which atom is removed?
a)
N
b)
O
c)
C
d)
H
21.

Water and oil do not mix due to what property?

a)

polarity between water molecules

b)

hydrogen bonding between water and oil molecules

c)

stickiness of oil molecules

d)

mass of the molecules

22.
When a solution is acidic, what does it release?
a)
H2O
b)
OH-
c)
H+
d)
none of these
23.
When a solution is basic, what does it release?
a)
H2O
b)
OH-
c)
H+
d)
none of these
24.
The first energy level of atoms have 2 electrons. How many can be in the other levels? 
a)
4
b)
6
c)
8
d)
10
25.
Which macromolecule's job is to be a main source of energy?
a)
carbohydrates
b)
lipids
c)
nucleic acids
d)
proteins
26.
Which macromolecule forms genetic makeup of organisms?
a)
carbohydrates
b)
lipids
c)
nucleic acids
d)
proteins
27.
Which macromolecule forms enzymes in our body?
a)
carbohydrates
b)
lipids
c)
nucleic acids
d)
proteins
28.
Compounds have all the following characteristics except...
a)
cannot be broken down physically
b)
have a specific ratio
c)
have different characteristics as its atoms
d)
have the same characteristics as its atoms
29.
How many atoms are in (C2H6O)2 ?
a)
17
b)
11
c)
10
d)
18
30.
A balanced chemical equation shows...
a)
matter can be multiplied
b)
matter is not created or destroyed
c)
matter is created or destroyed
d)
none of these
31.
What is a van der Walls force?
a)
molecular attraction due to slight polarity
b)
molecular repulsion due to slight polarity
c)
no molecular attraction
d)
none of these
32.
How many bonds can carbon make?
a)
1
b)
8
c)
4
d)
2
33.
If an atom has 11 electrons, how many valence electrons are there?
a)
7
b)
9
c)
3
34.
What is the charge of an electron?
a)
positive
b)
negative
c)
neutral
d)
none of these
35.
What is the charge of a neutron?
a)
positive
b)
negative
c)
neutral
d)
none of these
36.

The electrons in metallic bonds display which behavior?

a)

move around all the metal atoms

b)

stay near its own atom

c)

are given away

d)

stay between 2 atoms

37.
Which of the following are proteins?
a)
arugula
b)
Strawberries
c)
tortilla
d)
Beans, eggs, chicken
38.
Which of the following is NOT a Dairy source?
a)
Milk
b)
Yogurt
c)
Cheese 
d)
Eggs 
39.
Which one of the food categories below is NOT part of My Plate? 
a)
Grains
b)
Water
c)
Vegetables
d)
Protein
40.

What can affect the ability of an enzyme to function like in the apple browning lab?

a)

pH and color

b)

pH and temperature

c)

temperature and color

d)

color and flavor

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