Food: Protein Flashcards Preview

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Flashcards in Food: Protein Deck (10)
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1
Q

Elements in protein

A
(C) Carbon
(H) Hydrogen
(O) Oxygen 
(N) Nitrogen
Maybe sulfur
2
Q

Peptide bond

A

A bond between amino acids that have less than 20 amino acids

3
Q

Polypeptide bonds

A

More than 20 amino acids

4
Q

Protein

A

At least 20 amino acids

5
Q

Types of protein

A

Fibrous

Globular

6
Q

Fibrous protein

A

Show little to no folding
Form long fibres
Strong and tough
E.g keratin in hair, nails

7
Q

Globular protein

A

Shows lots of folding
Form rounded shapes
E.g egg whites (albumen)

8
Q

Role of protein (structural)

A
Keratin
          - Hair
          - nails
          - skin
Myosin 
          - muscle
Proteins and phospholipid
          - cell membrane
9
Q

Role of protein metabolic

A

Enzymes (speed up chemical reactions)
Hormones
Chlorophyll (needed for photosynthesis)
Haemoglobin (red pigment in blood, carries oxygen)

10
Q

Sources of proteins

A
Lean meat
Eggs
Nuts
Beans 
Fish 
Lentils