PRELAB 3.2 AMINO ACIDS

Question 1

How many essential AA are found in the body?
How many are found in nature?

Answer 1

20, 500

Question 2

difference between essential and non-essential amino acid

Answer 2

essential - cannot be synthesized by the body
non-essential - can be produced by the body

Question 3

What is the general stucture of an AA

Answer 3

Chiral carbon- (amino group, carboxyl group, R-group attached)
R-group or side chains - defining the type of AA

Question 4

What makes the R-group the determining structure of a protein

Answer 4

it differs in structure, electrical charges and polarity

Question 5

Classifications of the R-groups

Answer 5

Alipathic
Aromatic
Acidic
Basic
Hydroxylic
Sulfur-containing
Amidic
Non-essential
Essential

Question 6

What are the essential amino acids

Answer 6

Isoleucine
Leucine
Valine
Phenylalanine
Histidine
Lysine
Threonine
Tryptophan
Methionine

Question 7

What are the conditionally essential amino acids

Answer 7

Arginine
Glycine
Cysteine
Tyrosine
Proline
Glutamine

Question 8

What are the other AA

Answer 8

Asparctic acid
Glutamic acid
Asparagine
Alanine
Serine

Question 9

negatively-charged R-groups are

Answer 9

acid