A - Proteins - Their Functions And Uses OLD

Question 1

What are enzymes?

Answer 1

CATALYSTS produced by living things

Question 2

What is a catalyst?

Answer 2

A substance which INCREASES the speed of a reaction without being CHANGED or USED UP in the reaction.

Question 3

Enzymes are all PROTEINS and all proteins are made of up chains of ________

Answer 3

Amino acids

Question 4

ENZYMES are really PICKY and only usually catalyse ONE REACTION. This is because, for the enzyme to work, the substance has to ____ into a particular _____

Answer 4

Fit

Shape

Question 5

After the reaction has taken place, the substance…

Answer 5

Splits

Question 6

Enzymes need the right: (2)

Answer 6

• Temperature ( if it’s too hot the enzymes will burst )

* PH

Question 7

What are digestive enzymes used for?

Answer 7

Breaking down larger molecules to smaller molecules

Question 8

Name the enzyme that converts starch into sugars…

Answer 8

Amylase

Question 9

Name the enzyme that converts proteins into amino acids…

Answer 9

Protease

Question 10

Name the enzyme that converts lipids into glycerol and fatty acids…

Answer 10

Lipase