PROTEINS

Question 1

Amino acids are linked by

Answer 1

peptide bonds.

Question 2

selective acceleration of chemical rection

ex: digestive enzymes catalyze the hydrolysis of bonds in food molecules

Answer 2

enzymatic proteins

Question 3

protection against disease

ex: antibodies inactivate and help destroy viruses and bacteria

Answer 3

defensive protein

Question 4

found in mucous, tears, saliva, and breast milk. protects against pathogens.

Answer 4

IgA

Question 5

part of B cell receptors. activates basophils and mast cells

Answer 5

IgD

Question 6

protects against parasitic worms. responsible for allergic reactions.

Answer 6

IgE

Question 7

secreted by plasma cells in the blood. able to cross the placenta into the fetus

Answer 7

IgG

Question 8

may be attached to the surface of a B cell or secreted into the blood. responsible for early stages of immunity

Answer 8

IgM

Question 9

storage of amino acids

ex: casein, the protein of milk, is the major source of amino acid for baby mammals. plants have storage proteins in their seeds. OVALBUMIN is the protein of egg white, used as amino acid source for the developing embryo.

Answer 9

storage proteins

Question 10

another protein that stores iron in the transport protein, hemoglobin

Answer 10

ferritin

Question 11

transport of substances

Answer 11

transport proteins

Question 12

iron containing protein of vertebrate blood, transport oxygen from the lungs to other parts of the body,

Answer 12

hemoglobin

Question 13

coordination of an organism’s activities

Answer 13

hormonal proteins

Question 14

a hormonal protein secreted by the pancreas, causes other tissues to take up glucose, thus regulating blood sugar concentration.

Answer 14

insulin

Question 15

known as the love hormone

Answer 15

oxytocin

Question 16

growth hormone

Answer 16

somatotropin

Question 17

response of a cell to chemical stimuli

Answer 17

receptor protein

Question 18

proteins responsible for movement

ex: actin and myosin
or flagella and cilia

Answer 18

contractile and motor proteins

Question 19

protein for support

ex: keratin, collagen, elastin.

Answer 19

structural protein

Question 20

digestive enzymes

Answer 20

• amylase
• lipase
• pepsin
• trypsin

Question 21

types of transport protein

Answer 21

hemoglobin
albumin

Question 22

protein produces by the liver

Answer 22

albumin

Question 23

structural protein

Answer 23

tubulin
keratin

Question 24

hormonal protein

Answer 24

insulin
thyroxine

Question 25

hormonal protein produced from the thyroid gland , which stimulates the metabolic rate. It controls the speed at which oxygen and food products react to release energy for the body to use.

Answer 25

thyroxine

Question 26

defense protein protects the body from foreign pathogens.

Answer 26

immunoglobulins

Question 27

contractile protein

Answer 27

actin myosin

Question 28

storage protein

Answer 28

egg white also albumin