perm SS PP

What is hair made from?

• Keratin

• Cotton

• Silk

• Wool

What are the long chains in keratin called?

• Polypeptides

• Sugars

• Fibres

• Threads

What links the chains in keratin?

• Cross-links

• Knots

• Ties

• Strings

What is below the polypeptide chain in the diagram?

• Atoms

• Amino acids

• Protofibril

• Cortex

What is the function of the diagram?

• To show how to build a house

• To show the structure of hair

• To show how to cook food

• To show the structure of a car

What is the eighth layer from the top in the diagram?

• Cortex

• Amino acids

• Protofibril

• Microfibril

What are the chains shown in the diagram called?

• Polypeptide chains

• Water chains

• Oxygen chains

• Carbon chains

What does the diagram show being applied to the hair?

• Shampoo

• Conditioner

• Perm lotion

• Hair gel

What is the chemical symbol for hydrogen?

• He

• H

• Hy

• Hg

What does the oxygen remove to form water?

• Hydrogen

• Oxygen

• Sulfur

• Carbon