Proteins

Question 1

What are proteins?

Answer 1

Nitrogen containing compounds with functions in the human body

Question 2

Give examples of proteins

Answer 2

Hormones
Muscle fibres
Amylase

Question 3

What are enzymes

Answer 3

Examples of proteins which catalyse chemical reactions in the body, each enzyme has a unique shape due to change in temp or Ph

Question 4

What are amino acids

Answer 4

Smaller molecules that make up proteins they contain amine group (-NH2) and carboxylate group (-COOH)

Question 5

How do you make proteins

Answer 5

Several amino acids react together to form protein molecule. Amine group and carboxyl group react to form amide link and water

Question 6

What is the amide or peptide link

Answer 6

H. O
N. C

C O double bond

Question 7

What are essential amino acids?

Answer 7

Proteins that have to be obtained from the diet

Question 8

Describe Protein digestion process

Answer 8

Hydrolysis - protein is broken down to individual amino acids peptide link to broken to form carboxylic and amine groups in amino acids

Question 9

Describe hydrogen bonding in proteins

Answer 9

Proteins and amino acids contain N-H

Long strands of protein can bended into different shapes due to strength of bonding