Proteins

Question 1

Proteins are made of ______ synthesised together

Answer 1

Amino acids

Question 2

The 5 main groups of proteins

SHARE

Answer 2

Structural 
Hormones 
Antibodies
Receptors
Enzymes

Question 3

Functions of SHARE

Answer 3

S- give support to cell structure

H-chemical messengers that carry specific messages through the bloodstream

A-defend against pathogens such as bacteria and viruses

R- allow cells to recognise specific substances

E- speed up chemical reactions in cells

Question 4

Examples of SHARE

Answer 4

S-proteins found in cell membranes required for active transport

H-insulin signalling to the liver to store excess glucose in the form of glycogen

A-immunoglobulins that provide a specific defence against influenza viruses

R- liver cells have receptors for the signals sent by insulin

E- starch is broken down into maltose by the enzyme amylase in the digestive system

Question 5

4 Enzymes properties

Answer 5

Made of proteins
Speed up chemical reactions
Produces by living cells
Unchanged during chemical reactions

Question 6

Specific substrate

Answer 6

The only substrate that the enzyme can bind too (binds at active site)

Question 7

Degradation reactions?

Answer 7

Break down reaction using enzymes
Large molecules to small molecules
SAM

Question 8

Synthesis reactions

Answer 8

Use of enzyme to build up smaller molecules to large molecules
G1PS

Question 9

Optimum conditions?

Answer 9

The temperature and pH at which an enzyme works best(most active) not the same for each enzyme

Question 10

Denatures?

And causes

Answer 10

Active site changes- substrate can no longer bind

Extreme pH
High temperatures

Question 11

Hormones are composed of?

Answer 11

Proteins