Proteins Flashcards
Main 5 functions:
- Catalyst
- Structure
- Immunoglobulins
- Transport
- Regulatory
Catalyst
(enzymes)
Structure
(cover and support: skin, tendons, muscles, nails, hair and bones)
Immunoglobulins
(immune system)
Transport
(material movement)
Regulatory
(hormones and metabolism)
Nails and hair are…
Keratine
Skin and tendons are…
Collagen
Transports oxygen…
Hemoglobin
Amino acids joined by…
Peptide bonds
H2N
Amino Group
COOH
Carboxyl group
R
LIGANDS
How many aminoacids are there?
20
How many can the human body produce?
10
Where do the others aminoacids are there?
From the food
What happens in case of lack of proteins?
Muscles shrink and malfunction
CO-NH
Peptide Bond
The more complex the structure…
the more complex the function
Primary
Sequence of amino acids
Secondary
High attraction force
2-D zigzag
Tertiary
3-D zigzag
Quarternary
More than 1 TERTIARY protein
What is an essential amino acid?
Amino acid that the body can’t produce