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Chapter 2/3 Part 4
Test Description: Environmental Science Biochemistry
Instructions: Answer all questions to get your test result.
1) What element defines organic compounds?
A
O (Oxygen)
B
N (Nitrogen)
C
H (Hydrogen)
D
C (Carbon)
2) Why does carbon form four bonds?
A
Because carbon wants to have no electrons in its outer energy level.
B
Because carbon likes to be surrounded by atoms to become stable.
C
Because carbon can form double bonds to become stable
D
Because carbon has 4 electrons and needs to gain 4 more to become stable.
3) Why are functional groups important?
A
They determine the properties of macromolecules.
B
They determine the structure of a macromolecule.
C
They determine the job of a macromolecule.
D
They determine the shape of a macromolecule.
4) Amine
A
Phosphate
B
Hydroxyl
C
Carboxyl
D
Amine
5) Phosphate
A
Phosphate
B
Amine
C
Carboxyl
D
Hydroxyl
6) Hydroxyl
A
Carboxyl
B
Phosphate
C
Amine
D
Hydroxyl
7) Carboxyl
A
Hydroxyl
B
Amine
C
Phosphate
D
Carboxyl
8) Explain how monomers and polymers are related.
A
Monomers are the building blocks for polymers.
B
Polymers are the building blocks for monomers.
C
Monomers and polymers come together to make macromolecules.
D
Monomers are one polymer.
9) Which of the following is FALSE about condensation and hydrolysis reactions?
A
Hydrolysis reactions break down polymers and use water.
B
Condensation and hydrolysis reactions are the opposite of one another
C
Condensation and hydrolysis reactions are not related to one another.
D
Condensation reactions build polymers and release water.
10) Why is ATP (Adenosine triphosphate) important?
A
It is the molecule used to build proteins.
B
It is the molecule used to store energy.
C
It is the molecule used to store the genetic information.
D
It is the molecule used to store phosphates.
*select an answer for all questions
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