Lecture 3: Biological Molecules

Question 1

Which group of macromolecules is non-polar in shape, is important for cell membranes, and is used for long-term energy?

Answer 1

Lipids

Question 2

Which group of macromolecules provides short-term energy to the cells?

Answer 2

Carbohydrates

Question 3

Which group of macromolecules is responsible for the “work” (or metabolism) that a cell does?

Answer 3

Proteins

Question 4

Glucose is a good example of a monosaccharide. True of False.

Answer 4

True

Question 5

Sucrose is a good example of a monosaccharide. True of False

Answer 5

False

Question 6

Starch is a storage polysaccharide in plants. True of False.

Answer 6

True

Question 7

Cellulose is a polysaccharide in plants that is a good source of energy. True or False.

Answer 7

False

Question 8

Which type of lipid is mainly found in animal products, and is more difficult to digest in your cells? (Saturated or Unsaturated)

Answer 8

Saturated

Question 9

Enzymes are good examples of proteins that perform metabolism in your cells. True or False.

Answer 9

True

Question 10

Proteins are made from monomers called ____, and the sequence of these determines the primary shape of the protein.

Answer 10

Amino acids

Question 11

The DNA molecule is a “double-helix” molecule, and has a ___ shape.

Answer 11

Secondary

Question 12

Adenine, Guanine, Thymine and Cytosine are members of the macromolecule group ___.

Answer 12

Nucleic Acids

Question 13

What group of macromolecules stores genetic information in your cells?

Answer 13

Nucleic Acids