Proteins (Leaving Cert Biology): Flashcards
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Practise the cards
15 cards from this deck
4 main elements in proteins
4 main elements in proteins
Carbon, hydrogen, oxygen, nitrogen
Number of amino acids used by living things
Number of amino acids used by living things
20 common amino acids
Essential amino acids humans need from diet
Essential amino acids humans need from diet
9 essential amino acids
What makes each amino acid unique
What makes each amino acid unique
The R group (side chain)
Peptides definition
Peptides definition
Short chains of amino acids, up to 50
Polypeptides definition
Polypeptides definition
Long chains of more than 50 amino acids
Proteins definition (amino acid count)
Proteins definition (amino acid count)
Over 200 amino acids joined in a chain
Bond linking amino acids together
Bond linking amino acids together
Peptide bonds
Fibrous proteins role
Fibrous proteins role
Structural role - strong and tough support
Globular proteins role
Globular proteins role
Functional roles - specific jobs in body
Examples of fibrous proteins
Examples of fibrous proteins
Keratin, myosin, collagen
Examples of globular proteins
Examples of globular proteins
Haemoglobin, enzymes
Can proteins be stored in the body?
Can proteins be stored in the body?
No, need regular dietary supply
Role of protein enzymes
Role of protein enzymes
Control reactions in the body
Role of protein antibodies
Role of protein antibodies
Inactivate and destroy viruses and bacteria