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Chemistry Of Life
Test Description: Students will review key concepts in the chemistry of biology.
Instructions: Answer all questions to get your test result.
1) Acid solutions are produced by the release of ________ ions.
A
Oxygen
B
Hydrogen
C
Potassium
D
Sodium
2) Atoms of the same element that have different numbers of neutrons are called ____.
A
compounds
B
molecules
C
isotopes
D
polymers
3) Which of the following carbohydrates is a polysaccharide?
A
starch
B
glucose
C
sucrose
D
fructose
4) What are saturated fats?
A
proteins with double bonds between carbon atoms
B
lipids with double bonds between carbon atoms
C
lipids with single bonds between carbon atoms
D
proteins with single bonds between carbon atoms
5) Negatively charged particles that move around the nucleus of an atom are called ____.
A
protrons
B
electrons
C
neutrons
D
isotopes
6) A(n) ____________ bond involves the sharing of electrons.
A
molecular
B
ionic
C
covalent
D
hydrogen
7) Small compounds that form proteins are called ____.
A
phospholipids
B
amino acids
C
lipids
D
carbohydrates
8) Which of these elements is NOT part of a carbohydrate molecule?
A
oxygen
B
carbon
C
hydrogen
D
nitrogen
9) A base _________.
A
measures below pH 7
B
combines with water to form an acid
C
forms hydrogen ions (H-) in water
D
forms hydroxide ions (OH-) in water
10) The total number of atoms in the molecule glucose, C6H12O6
A
12
B
24
C
6
D
48
*select an answer for all questions
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