3.1.1 Macromolecules Review Question Preview (ID: 23392)

This Is Aligned With MD Core Learning Goals 3.1.1 Contains: Macromolecules.

Which of the following sets is organic?
a) Minerals, water, carbohydrates, vitamins, lipids
b) Carbohydrates, lipids, proteins, water, nucleic acids
c) Minerals, carbohydrates, lipids, nucleic acids, vitamins
d) Carbohydrates, lipids, nucleic acids, proteins, vitamins

Which of the following is paired correctly?
a) Proteins: Enzymes; cellulose; amino acids
b) Carbohydrates: Cellulose, dietary fiber, energy; wax; monosaccharide
c) Nucleic acids: Store genetic info/direct protein formation; DNA; nucleotides
d) Lipids: Cell membrane, stored energy; lactase; fatty acids

When someone is ill or hurt, they must consume large amounts of
a) Vitamin A
b) Vitamin C
c) Vitamin D
d) Vitamin K

Which of these stores the genetic information of organisms?
a) lipids
b) carbohydrates
c) nucleic acids
d) proteins

Which of these pairs controls the reaction rate of cellular respiration?
a) enzyme, protein
b) cellulose, carbohydrate
c) nucleic acid, DNA
d) oil, fatty acid

Glucose is a building block of carbohydrates. Which of these describes glucose?
a) amino acid
b) monosaccharide
c) nucleotide
d) fatty acid

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 A
b) Vitamin C
c) Vitamin D
d) Vitamin K

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) nucleic acid
c) lipid
d) protein

Cell membranes have a double layer of
a) phospholipids
b) amino acids
c) carbohydrates
d) nucleic acids

What is the main role of lipids?
a) They cause DNA to replicate
b) They catalyze chemical reactions.
c) They are the main structural component of cell membrane.
d) They move RNA into the cytoplasm.

Which of these are the repeating unit that form a DNA molecule?
a) fatty acids
b) amino acids
c) nucleotides
d) monosaccharides

Venus fly traps consume insects and can break them down. Which of the following would most likely break down the insect?
a) enzymes
b) lipids
c) minerals
d) nucleic acids

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 is less dense as a solid than as a liquid.
c) Water changes temperature rapidly.
d) Water is a nonpolar molecule.

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) lipid, protein
b) cellulose, carbohydrate
c) amino acid, protein
d) nucleic acid, amylase

The major role of carbohydrates in the human diet is to
a) form cell membranes
b) catalyze reactions
c) supply energy
d) make proteins

Which of these supply the main energy source used in cellular respiration?
a) lipids
b) proteins
c) carbohydrates
d) nucleic acids

Starch from food is a source of energy for organisms. Starch is a type of
a) protein
b) carbohydrate
c) nucleotide
d) lipid

Bears eat all summer to store energy for their winter hibernation. Which of these are their main energy source during hibernation?
a) lipids
b) proteins
c) carbohydrates
d) nucleic acids

A child’s bones break very easily. Which of the following may be lacking in their diet?
a) Vitamin A
b) Vitamin C
c) Vitamin D
d) Vitamin K

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 freezes at 0C.
b) Water evaporates at 100C.
c) Water molecules are polar.
d) Water molecules are stable.

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