Biological molecules proteins 2.1.2 Flashcards
1
Q
What are peptides?
A
- Peptides are polymers made up of amino acid molecules. Proteins consist of one or more polypeptides arranged as complex macromolecules and they have specific biological functions.
2
Q
What elements do proteins contain?
A
Carbon, hydrogen, oxygen, nitrogen, sulphur. (CHONS)
3
Q
What is a gene?
A
- A gene is a stretch of DNA that codes for proteins.
- DNA is NOT made out of proteins
4
Q
What are the monomers of proteins?
A
amino acids
5
Q
How many amino acids are there within proteins in nature?
A
- There are 20 aas within proteins in nature
- Plants and microorganisms can synthesise all of these amino acids
- Animals can only synthesise non essential amino acids.
6
Q
Structure of amino acids
A
*look on pp
7
Q
Condensation reaction of 2 amino acids
A
*look on pp
