Enzymes

Question 1

What are enzymes

Answer 1

Catalysts produced by living things

Question 2

What’s a catalyst

Answer 2

Substance that speeds up a reaction without being changed or used up in the reaction

Question 3

What are enzymes made of?

Answer 3

They are proteins made of chains of amino acids

Question 4

what is special about enzymes?

Answer 4

they have special shapes so they can catalsye reactions

Question 5

what 2 factors do enzymes need to work?

Answer 5

temp and ph

Question 6

what does changing the temp do?

Answer 6

increase the rate of reaction

Question 7

if it gets too hot what happens?

Answer 7

bonds that hold the enzyme together break which changes the special shape so it doesnt work and is denatured

Question 8

what temp does enzymes in the human body work at?

Answer 8

37 degrees

Question 9

what is the optimum ph of an enzyme?

Answer 9

neutral ph 7

Question 10

what do digestive enzymes do?

Answer 10

break down big molecules into smaller

Question 11

examples of big molecules?

Answer 11

starch proteins and fats

Question 12

examples of smaller molecues

Answer 12

sugars amino acids and fatty acids

Question 13

3 types of digestive enzyme

Answer 13

protease lipase and amylase

Question 14

amylase function

Answer 14

convert starch into sugars

Question 15

where is amylase made?

Answer 15

salivary glands pancreas and small intestine

Question 16

protease function

Answer 16

converts proteins into amino acids

Question 17

where is protease made?

Answer 17

stomach(called pepsin
pancreas
small intestine

Question 18

lipase function

Answer 18

converts lipids into glycerol and fatty acids

Question 19

where is lipase made

Answer 19

pancreas small intestine

Question 20

bile function

Answer 20

neutralise stomach acid and emulsify fats

Question 21

where is bile produced and stored

Answer 21

liver and gall bladder

Question 22

meaning of emulsifying fats?

Answer 22

breaking down fats