Intro To Proteins

Question 1

The most important of all biological compounds

Answer 1

Proteins

Question 2

Greek : proteios

meaning- ________

Answer 2

of first importance

Question 3

compounds of high molar mass consisting largely or entirely of chains of amino acids

Answer 3

Proteins

Question 4

C, H, O, S, and ____ with traces of P or other elements

Answer 4

N

Question 5

Functions of Proteins

Answer 5

•structure
•catalysis (enzyme)
•movement(contractile)
•transport
•regulatory
•storage
•protection

Question 6

FUNCTION:
structure

BIOLOGICAL FUNCTION: __________

Answer 6

•provide strength and structure

example:
skin, bones, hairs, and nails;
keratin, collagen

Question 7

FUNCTION:
Catalysis (enzyme)

BIOLOGICAL FUNCTION: __________

Answer 7

• accelerate biological functions

example:
a-Amylase catalyzes the hydrolysis of starch and glycogen.

Question 8

FUNCTION:
Movement (contractile)

BIOLOGICAL FUNCTION: __________

Answer 8

•muscle contraction; cell division

example:
Myosin is one protein needed for the contraction of muscles

Question 9

FUNCTION:
transport

BIOLOGICAL FUNCTION: __________

Answer 9

•transport substances from one place to another

example:
Hemoglobin transports oxygen from the lungs throughout the body

Question 10

FUNCTION:
regulatory

BIOLOGICAL FUNCTION: __________

Answer 10

•regulate the functions of other proteins

example:
Insulin regulates the activity of specific enzymes in the body; erythropoietin, hGH

Question 11

FUNCTION:
storage

BIOLOGICAL FUNCTION: __________

Answer 11

•provide storage of essential nutrients

example:
Ovalbumin stores amino acids in the egg white that will be used by the developing bird; casein in milk, ferritin (liver)

Question 12

FUNCTION:
protection

BIOLOGICAL FUNCTION: __________

Answer 12

•protect cells or the organism from foreign substances

example:
Immunoglobulins recognize and
breakdown foreign molecules; fibrinogen