Proteins Flashcards
1
Q
What are proteins used for?
A
Growth and repair and to build new cells
2
Q
What living things contain protein
A
Cell membranes, cytoplasm and muscle cells
3
Q
What are other sources of protein in our body?
A
Haemoglobin, enzymes, antibodies, Insulin
4
Q
What does protein contain?
A
Carbon, hydrogen, oxygen and nitrogen. (Sometimes sulphur)
5
Q
What is the structure of proteins
A
Long chains of amino acids
6
Q
What is found between amino acids?
A
Peptide links
7
Q
What happens when water is added?
A
Split into short polypeptide chains then into amino acids
8
Q
What happens when heated above 40 degrees?
A
They are denatured and lose their shape
9
Q
What are good sources of proteins?
A
Meat, fish, eggs, beans, nuts
10
Q
Why are soya beans used?
A
To make artificial meat since they have a lot of protein
