Amino Acids Flashcards Preview

Home Economics: 01.3 - Proteins > Amino Acids > Flashcards

Flashcards in Amino Acids Deck (16)
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1

What are the components of an amino acid?
(5)

An amino group
A carboxyl group
A central carbon
A single hydrogen
A variable group

2

What is the chemical composition of an amino group?

NH2

3

What is the chemical composition of a carboxyl group?

COOH

4

What letter is used to represent the variable group present in every amino acid?

R

5

Draw the basic structure of an amino acid.

...............H
............... |
NH2 --- C --- COOH
.............. |
............. R

6

What does one or more amino acids joined together form?

A protein

7

Give two examples of amino acids who's chemical structure you know and can be drawn.

Glycine
Cystine

8

What is the variable group in glycine?

Hydrogen

9

What is the variable group in cystine?

HS-CH2

10

What are essential amino acids?
(3)

Amino acids that cannot be made naturally by the body
They have to be obtained from food
Foods that provide them are called high biological foods
Adults require 8 while children require 10

11

How many essential amino acids are there?

8

12

Give the names of the essential amino acids.
(2/8)

Valine
Lysine
Leucine
Isoleucine
Phenylalanine
Methionine
Threonine
Histidine (children)
Arginine (children)

13

What two amino acids are essential for children?

Histidine
Arginine

14

What are non-essential amino acids?

Amino acids that can be manufactured by the body and therefore do not need to be obtained by the diet
There are ten non-essential amino acids

15

How many non-essential amino acids are there?

Ten

16

Give the name of the non-essential amino acids.
(2/10)

Alanine
Aspartic acid
Cysteine
Ornithine
Serine
Asparagine
Proline
Tyrosine
Glycine
Glutamic acid