Proteins✅

Question 1

What are the subunits of proteins

Answer 1

amino acids

Question 2

what are the bonds between amino acids acids called

Answer 2

peptide bonds

Question 3

How many different amino acids are there

Answer 3

20

Question 4

What are the amino acids called that our body cannot create

Answer 4

essential

Question 5

What are amino acids called that can be synthesised

Answer 5

non-essential

Question 6

How are polypeptide chains formed

Answer 6

When connected together by a series of peptide bonds

Question 7

What are proteins structure impacted by

Answer 7

temperature and pH

Question 8

Denaturation

Answer 8

When an external factor negatively alters the shape of a protein

Question 9

If one end of the protein has an amine group (NH2) the other ends must be.

Answer 9

a carboxyl group (-COOH)

Question 10

How many amino acids is glucagon made up of

Answer 10

29

Question 11

amino acids are the monomers of

Answer 11

polypeptides

Question 12

how many amino acids are found in polypeptides

Answer 12

20

Question 13

What is the structure of an amino acid

Answer 13

central carbon atom
an amino group (NH2)
a carboxyl group (COOH)
a hydrogen atom
an R group

Question 14

How is a peptide bond formed

Answer 14

a hydroxyl group (OH) is lost from a carboxylic group (COOH) of one amino acid
and a hydrogen is lost from the amine group (NH2)

Question 15

What are the amino acids called that are cells make ourselves

Answer 15

non-essential amino acids

Question 16

What are the amino acids called that we need to consume in our diets

Answer 16

essential amino acids

Question 17

What are 3 roles of proteins

Answer 17

• Cell adhesion (where cells in the same tissue stick together)
• Blood Clotting (where blood proteins interact with oxygen)
• Hormones (chemical messengers that are secreted in one part of the body to have an effect elsewhere