Proteins

Question 0

Defensive proteins

Answer 0

Protection against disease

Question 1

Enzymatic Proteins

Answer 1

Selective accelerations of chemical reactions

Question 2

Storage proteins

Answer 2

Storage of amino acids

Example: casein (protein of milk)

Question 3

Transport proteins

Answer 3

Transportation of substances

Example: hemoglobin (protein in blood that transports oxygen)

Question 4

Hormonal proteins

Answer 4

Coordination of an organism’s activities

Example: insulin (hormone secreted by pancreas that causes other tissues to take up glucose)

Question 5

Receptor proteins

Answer 5

Response of cell to chemical stimuli

Question 6

Contractile and motor proteins

Answer 6

Movement

Example: actin and myosin (movement of muscles)

Question 7

Structural proteins

Answer 7

Structure

Example: keratin (protein of hair, horns, and feathers)