Amino acids

Question 1

proteins are chains of

Answer 1

amino acids

Question 2

changing polar to nonpolar amino acid can cause

Answer 2

sickle cell anemia (from glutamic acid to valine)

Question 3

building block of protein

Answer 3

amino acid

Question 4

how many naturally occurring amino acids do we have

Answer 4

20

Question 5

proteins are macromolecules that have amino acid polymers joint together by______ bonds

Answer 5

covalent

Question 6

amino acids make linear molecule a polymer that can fold into

Answer 6

three dimensional structure

Question 7

if a normal protein is heated, had a pH change, salt or has been shaken mechanically, it will

Answer 7

loose its function and become denatured protein

Question 8

basic components of an amino acid

Answer 8

Carbon in the middle
amine group
carboxyl group (acid group)
hydrogen
side chain

Question 9

how do we differentiate amino acids types?

Answer 9

by the side chain

Question 10

what can a side chain contain in an amino acid?

Answer 10

alkyl group
aromatic compounds
amino groups
carboxyl groups
hydroxyl groups
sulfur-containing groups

Question 11

how many amino acids that are hydrophobic

Answer 11

9

Question 12

how many amino acids that are hydrophilic

Answer 12

11

Question 13

how to determine hydrophobic proteins

Answer 13

tend to cluster on the inside of the molecule

Question 14

amino acids are classified as hydrophobic when the side chains are

Answer 14

alkyl groups
hydrogen
aromatic

Question 15

hydrophobic (non polar) R groups:

Answer 15

Glycine
Alanine
Valine
Leucine
Isoleucine
Methionine
Phenylalanine
Tryptophan
Proline

Question 16

Glycine contain?

Answer 16

hydrogen

Question 17

Alanine contains?

Answer 17

1 methyl

Question 18

Valine contains?

Answer 18

3 methyl groups

Question 19

leucine contains?

Answer 19

4 Methyl groups

Question 20

Isoleucine contains?

Answer 20

its an isomer of leucine that contains 4 methyl groups

Question 21

methionine contains?

Answer 21

sulfur and methyl

Question 22

phenylalanine contains?

Answer 22

Has a benzene ring

similar to alanine but in addition it has benzene ring

Question 23

Tryptophan contains?

Answer 23

has a benzene ring

similar to alanine but in addition it has double benzene ring

Question 24

Proline contains?

Answer 24

forms a cyclic structure that is linked to amine group

most unusual

Question 25

amino acids are classified as Hydrophilic when the side chains are

Answer 25

Alcohols
thiols
amides

Question 26

polar (hydrophilic) Neutral side chains

Answer 26

Serine 
Threonine
Tyrosine
Cysteine 
Asparagine
Glutamine

Question 27

Serine contains?

Answer 27

alchohol side chain

Question 28

Threonine contains

Answer 28

alchohol and a methyl

Question 29

Tyrosine contains

Answer 29

alchohol and a benzene ring

Question 30

cysteine contains

Answer 30

thiol group

can covalently link to another group of cysteine and form a disulfite bridge

Question 31

Does asparagine contain?

Question 32

Asparagine contain?

Answer 32

Amide side chain one methyl

Question 33

Glutamine Contains?

Answer 33

amide side chain two methyl

Question 34

Polar acidic (negatively charged) are

Answer 34

aspartic acid

glutamic acid