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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 C
B
Vitamin K
C
Vitamin A
D
Vitamin D
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 stable.
B
Water freezes at 0C.
C
Water molecules are polar.
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
carbohydrates
B
proteins
C
lipids
D
nucleic acids
4) Starch from food is a source of energy for organisms. Starch is a type of
A
nucleotide
B
protein
C
carbohydrate
D
lipid
5) The major role of carbohydrates in the human diet is to
A
catalyze reactions
B
make proteins
C
supply energy
D
form cell membranes
6) Which of these supply the main energy source used in cellular respiration?
A
nucleic acids
B
carbohydrates
C
lipids
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
amino acid, protein
D
lipid, protein
8) When the cells of most organisms freeze, they burst. Which property of water causes this to occur?
A
Water is less dense as a solid than as a liquid.
B
Water changes temperature rapidly.
C
Water is a universal solvent.
D
Water is a nonpolar molecule.
9) Which of these are the repeating unit that form a DNA molecule?
A
fatty acids
B
amino acids
C
monosaccharides
D
nucleotides
10) Venus fly traps consume insects and can break them down. Which of the following would most likely break down the insect?
A
minerals
B
enzymes
C
nucleic acids
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
lipid
B
nucleic acid
C
protein
D
carbohydrate
12) Cell membranes have a double layer of
A
amino acids
B
phospholipids
C
carbohydrates
D
nucleic acids
13) What is the main role of lipids?
A
They catalyze chemical reactions.
B
They cause DNA to replicate
C
They move RNA into the cytoplasm.
D
They are the main structural component of cell membrane.
14) Which of these pairs controls the reaction rate of cellular respiration?
A
nucleic acid, DNA
B
enzyme, protein
C
oil, fatty acid
D
cellulose, carbohydrate
15) Glucose is a building block of carbohydrates. Which of these describes glucose?
A
amino acid
B
nucleotide
C
fatty acid
D
monosaccharide
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 K
B
Vitamin A
C
Vitamin D
D
Vitamin C
17) When someone is ill or hurt, they must consume large amounts of
A
Vitamin C
B
Vitamin K
C
Vitamin A
D
Vitamin D
18) Which of these stores the genetic information of organisms?
A
proteins
B
lipids
C
nucleic acids
D
carbohydrates
19) Which of the following is paired correctly?
A
Nucleic acids: Store genetic info/direct protein formation; DNA; nucleotides
B
Carbohydrates: Cellulose, dietary fiber, energy; wax; monosaccharide
C
Lipids: Cell membrane, stored energy; lactase; fatty acids
D
Proteins: Enzymes; cellulose; amino acids
20) Which of the following sets is organic?
A
Carbohydrates, lipids, nucleic acids, proteins, vitamins
B
Minerals, carbohydrates, lipids, nucleic acids, vitamins
C
Minerals, water, carbohydrates, vitamins, lipids
D
Carbohydrates, lipids, proteins, water, nucleic acids
*select an answer for all questions
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