Enzymes

Question 1

enzyme

Answer 1

speeds up the rate of reactions by making or breaking molecules without being used up

Question 2

an enzyme’s ? is complimentary to a substrate’s shape

Answer 2

active site

Question 3

protease

Answer 3

protein, amino acids, small intestine, pancreas, stomach

Question 4

amylase

Answer 4

carbohydrates, maltose, small intestine, pancreas, salivary glands

Question 5

lipase

Answer 5

fats, fatty acids, small intestine, pancreas

Question 6

bile

Answer 6

emulsifies fat by increasing surface area to aid with lipase’s digestion of fats, neutralises stomach acid with alkaline conditions

Question 7

kinetic energy on enzyme’s activity

Answer 7

increases = increased collisions, optimum, further increase = denaturation + decreased collisions

Question 8

substrate concentration on enzyme’s activity

Answer 8

increases = increased collisions, maximum = all enzymes are occupied

Question 9

pH on enzyme’s activity

Answer 9

increases = gain hydroxide ions + denaturation, optimum, further increase = gain hydrogen ions + denaturation

Question 10

how do you speed up enzyme reactions?

Answer 10

stirring, optimum pH/ temperature/ concentration, quick removal of products, high surface area of substrate