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3.1.1 Macromolecules Review
Test Description: This is aligned with MD Core Learning Goals 3.1.1 Contains: Macromolecules
Instructions: Answer all questions to get your test result.
1) A child’s bones break very easily. Which of the following may be lacking in their diet?
A
Vitamin D
B
Vitamin C
C
Vitamin A
D
Vitamin K
2) In circulatory systems, a large part of the fluid is water. For example, human blood plasma is approximately 90% water. Which of these properties of water makes it an ideal material for dissolving necessary chemical substances?
A
Water molecules are polar.
B
Water molecules are stable.
C
Water freezes at 0C.
D
Water evaporates at 100C.
3) Bears eat all summer to store energy for their winter hibernation. Which of these are their main energy source during hibernation?
A
proteins
B
carbohydrates
C
lipids
D
nucleic acids
4) Starch from food is a source of energy for organisms. Starch is a type of
A
carbohydrate
B
nucleotide
C
lipid
D
protein
5) The major role of carbohydrates in the human diet is to
A
supply energy
B
form cell membranes
C
make proteins
D
catalyze reactions
6) Which of these supply the main energy source used in cellular respiration?
A
lipids
B
nucleic acids
C
carbohydrates
D
proteins
7) The cell wall of a plant helps the plant cell maintain its shape. Which of these pairs correctly describes the main structural component of the cell wall?
A
nucleic acid, amylase
B
cellulose, carbohydrate
C
lipid, protein
D
amino acid, protein
8) When the cells of most organisms freeze, they burst. Which property of water causes this to occur?
A
Water is a universal solvent.
B
Water changes temperature rapidly.
C
Water is less dense as a solid than as a liquid.
D
Water is a nonpolar molecule.
9) Which of these are the repeating unit that form a DNA molecule?
A
amino acids
B
monosaccharides
C
nucleotides
D
fatty acids
10) Venus fly traps consume insects and can break them down. Which of the following would most likely break down the insect?
A
nucleic acids
B
enzymes
C
minerals
D
lipids
11) Venus fly trap plants obtain much of their nitrogen from amino acids found in the insects. Which of these chemical compounds are the source of the amino acids?
A
carbohydrate
B
lipid
C
nucleic acid
D
protein
12) Cell membranes have a double layer of
A
phospholipids
B
amino acids
C
carbohydrates
D
nucleic acids
13) What is the main role of lipids?
A
They are the main structural component of cell membrane.
B
They catalyze chemical reactions.
C
They move RNA into the cytoplasm.
D
They cause DNA to replicate
14) Which of these pairs controls the reaction rate of cellular respiration?
A
oil, fatty acid
B
nucleic acid, DNA
C
cellulose, carbohydrate
D
enzyme, protein
15) Glucose is a building block of carbohydrates. Which of these describes glucose?
A
monosaccharide
B
amino acid
C
fatty acid
D
nucleotide
16) Blood needs to be able to clot so that when someone is hurt, they do not bleed to death. Which of these helps blood to clot?
A
Vitamin D
B
Vitamin A
C
Vitamin K
D
Vitamin C
17) When someone is ill or hurt, they must consume large amounts of
A
Vitamin D
B
Vitamin C
C
Vitamin A
D
Vitamin K
18) Which of these stores the genetic information of organisms?
A
lipids
B
carbohydrates
C
proteins
D
nucleic acids
19) Which of the following is paired correctly?
A
Proteins: Enzymes; cellulose; amino acids
B
Carbohydrates: Cellulose, dietary fiber, energy; wax; monosaccharide
C
Lipids: Cell membrane, stored energy; lactase; fatty acids
D
Nucleic acids: Store genetic info/direct protein formation; DNA; nucleotides
20) Which of the following sets is organic?
A
Minerals, carbohydrates, lipids, nucleic acids, vitamins
B
Carbohydrates, lipids, proteins, water, nucleic acids
C
Minerals, water, carbohydrates, vitamins, lipids
D
Carbohydrates, lipids, nucleic acids, proteins, vitamins
*select an answer for all questions
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