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WorksheetsChapter 6 Test Review
Total questions: 28
Worksheet time: 10mins
Name
Class
Date
1.
Glucose & Fructose, with the formula C6H12O6, differ in _.
a)
number of atoms
b)
kinds of atoms
c)
arrangement of atoms
d)
arrangement of electrons
2.
Electrons move about the nucleus of an atom in regions called _.
a)
nuclei
b)
electron clouds
c)
air
d)
isotopes
3.
A Chlorine atom becomes a chloride ion when it _.
a)
gains an electron
b)
loses an electron
c)
gains a neutron
d)
loses a proton
4.
The various enzymes in our bodies are _.
a)
lipids
b)
carbohydrates
c)
proteins
d)
nucleotides
5.
What are the basic building blocks of proteins?
a)
nucleic acids
b)
peptide bonds
c)
amino acids
d)
glycerol & fatty acids
6.
Which of the following does NOT describe a polymer?
a)
Polymers are made of monomers
b)
Polymers are large molecules
c)
Polymers usually form by covalent bonding
d)
Polymers are broken down by the process of hydrogenation
7.
Which of the following compounds may be polymers?
a)
carbohydrates
b)
nucleic acids
c)
proteins
d)
all of these
8.
When molecules of glucose & fructose combine to form sucrose, they do so by _.
a)
hydrolysis
b)
electron clouds
c)
condensation
d)
radiation
9.
Which of the following represents a formula for a chemical compound?
a)
H
b)
C
c)
P
d)
H2O
10.
Water dissolves many ionic & molecular compounds because to its _.
a)
ionic bonding
b)
polarity
c)
covalent bonding
d)
hydrogen bonding
11.
Diffusion continues until there is no _.
a)
dynamic equilibrium
b)
turgor pressure
c)
concentration gradient
d)
homeostasis
12.
Which of the following is a chemical reaction?
a)
tearing paper into strips
b)
burning paper
c)
picking up iron filing with a magnet
d)
mixing salt & sugar in the same container
13.
The total number of atoms in a molecule of sucrose, C12H22O11 is _.
a)
11
b)
12
c)
22
d)
45
14.
Sodium & Chlorine combine to form a stable compound by _ bonding.
a)
covalent
b)
ionic
c)
peptide
d)
chemical
15.
An unsaturated lipid contains _.
a)
more oxygen than hydrogen
b)
double bonds
c)
ionic bonds
d)
only one fatty acid
16.
Carbon-12, Carbon-13, and Carbon-14 are _.
a)
isotopes
b)
polymers
c)
radioisotopes
d)
macromolecules
17.
The nucleus of an atom contains _.
a)
protons & neutrons
b)
neutrons & electrons
c)
protons & electrons
d)
protons, neutrons & electrons
18.
A very strong base might have a pH of _.
a)
3
b)
5
c)
9
d)
13
19.
How many electrons can a carbon atom share?
a)
1
b)
3
c)
2
d)
4
20.
Brownian motion is evidence of _.
a)
polar ions
b)
random movement of molecules
c)
chemical energy
d)
microorgansims
21.
molecule with unequal distribution of charge
a)
cellulose
b)
polymer
c)
polar molecule
d)
peptide bond
22.
All the chemical changes that occur within an organism
a)
metabolism
b)
enzyme
c)
solution
d)
nucleus
23.
Glucose polymer that forms the cell walls of plants
a)
enzyme
b)
polymer
c)
solution
d)
cellulose
24.
Protein that speeds up a chemical reaction
a)
polar molecule
b)
enzyme
c)
peptide bond
d)
solution
25.
Large molecule formed when many smaller molecules bond together
a)
polymer
b)
polar molecule
c)
enzyme
d)
cellulose
26.
bond formed between amino acids
a)
covalent bond
b)
peptide bond
c)
ionic bond
d)
polar molecule
27.
center of an atom
a)
energy level
b)
electrons
c)
nucleus
d)
ion
28.
mixture in which one substance is distributed evenly in another
a)
solution
b)
solute
c)
solvent
d)
enzyme
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