PROTEINS

Question 1

WHAT MAKES UP THE THOUSANDS OF DIFFERENT PROTEINS THAT EXIST IN NATURE?

Answer 1

20 DIFFERENT AMINO ACIDS PUT TOGETHER IN MANY DIFFERENT WAYS

Question 2

WHAT IS THE MONOMER IN PROTEIN?

Answer 2

AMINO ACIDS (20 DIFFERENT ONES)

Question 3

WHAT IS THE POLYMER OF PROTEIN?

Answer 3

POLYPEPTIDE

Question 4

WHAT ARE THE ELEMENTS OF PROTEIN?

Answer 4

CARBON, HYDROGEN, OXYGEN, NITROGEN + COULD CONTAIN SULFUR

Question 5

WHAT’S THE BOND BETWEEN MONOMERS IN PROTEIN?

Answer 5

PEPTIDE BOND

Question 6

HOW MANY LEVELS OF STRUCTURE ARE IN PROTEINS?

Answer 6

4

Question 7

WHAT ARE THE THREE LEVELS OF PROTEIN STRUCTURE RELATED TO?

Answer 7

A SINGLE POLYPEPTIDE CHAIN

Question 8

WHAT IS THE FOURTH LEVEL OF PROTEIN STRUCTURE RELATED TO?

Answer 8

A PROTEIN THAT HAS TWO OR MORE POLYPEPTIDE CHAINS

Question 9

WHAT ARE THE TWO BROAD GROUPS OF PROTEIN?

Answer 9

FIBROUS + GLOBULAR

Question 10

WHAT DO FIBROUS PROTEINS RESEMBLE?

Answer 10

A LONG STRING / FIBRE (LONG + THIN)

Question 11

HOW ARE THE FIBROUS PROTEIN CHAINS LINKED?

Answer 11

BY CROSS BRIDGES OF FIBRES

Question 12

WHAT ARE THE PROPERTIES OF FIBROUS PROTEINS?

Answer 12

• STABLE
• INSOLUBLE IN WATER
• PHYSICALLY TOUGH

Question 13

WHAT ARE THE PROPERTIES OF GLOBULAR PROTEINS?

Answer 13

• COMPACT
• FOLDED
• HYDROPHOBIC GROUPS ARE ON THE INSIDE OF MOLECULE
• HYDROPHILIC ARE FACING OUTWARDS = WATER SOLUBLE

Question 14

WHAT ARE 4 EXAMPLES OF GLOBULAR PROTEINS?

Answer 14

1. ENZYMES
2. RECEPTORS
3. HORMONES
4. HAEMOGLOBIN