Proteins Health Notes

Question 1

Lactase: speeds up the hydrolysis of a disaccharide into two monosaccharides

Answer 1

Enzyme

Question 2

Hemoglobin: carries O2 in the blood

Answer 2

Transport

Question 3

Keratin: found in hair, nails, hooves, skin.

Answer 3

structure

Question 4

Vasopressin: is secreted by the pituitary gland to help regulate a normal range of electrolytes in bodily fluid.

Answer 4

Hormone

Question 5

Ferrin: store iron in liver

Answer 5

Sotrage

Question 6

Actin and Myosin: muscle contraction

Answer 6

contractile

Question 7

Antibody/ immunoglobin: recognize and latch on to antigens in order to remove them from the body

Answer 7

protection

Question 8

Calcitonin: is secreted by parafollicular cells in the thyroid gland to help regulate calcium and phosphorus levels in blood

Answer 8

Hormone

Question 9

Draw the simplest amino acid

Answer 9

_

Question 10

The simplest amino acid is?

Answer 10

Glycine

Question 11

What is an Essential Amino Acid? Examples:

Answer 11

obtained from diet. threonine, valine, lysine, histidine

Question 12

Zwitterions are a salt so they have a ___ melting point

Answer 12

high

Question 13

Zwitterions are insoluble/soluble

Answer 13

water soluble

Question 14

Amino acids are joined together by ____ to form peptide bonds

Answer 14

amide bonds

Question 15

The shape of protiens is dependent on the primary structure or the ___ of amino acids

Answer 15

sequence

Question 16

An alpha helix is due to the peptide chains twisting to ____

Answer 16

right handed/clockwise spirals

Question 17

R groups point ___ from the center of the helix

Answer 17

outward

Question 18

N-H and C=O bonds point parallel to the
____ of the helix and opposite to each other since they form ____ bonds

Answer 18

axis, hydrogen

Question 19

α-Helix units combine in some proteins such as α-keratins to form a

Answer 19

supercoil/ superhelix