Biology 2b

Question 0

At what temperature do enzymes in the human body work best at?

Answer 0

37 degrees

Question 1

What is a catalyst?

Answer 1

A substance that increases the speed of a reaction without being changed or used up

Question 2

What does amylase do?

Answer 2

Converts starch into sugars

Question 3

What does protease do?

Answer 3

Turns proteins into amino acids

Question 4

What does lipase do?

Answer 4

Turns lipids into glycerol and fatty acids

Question 5

What is respiration?

Answer 5

The process of releasing energy from glucose which goes on in every cell

Question 6

What is the word equation for aerobic respiration?

Answer 6

Glucose + oxygen = carbon dioxide + water + energy

Question 7

What is the energy released by aerobic respiration used for?

Answer 7

Build larger molecules from smaller ones, allow muscles to contract, keep body temp steady in mammals and birds, build nutrients into amino acids to build proteins

Question 8

What is the word equation to anaerobic respiration?

Answer 8

Glucose = energy + lactic acid

Question 9

What is oxygen debt?

Answer 9

When you stop exercising you have to repay the oxygen which didn’t get to your muscles in time because the rest could not keep up. The pulse and breathing rate stay high to rectify the situation. Blood flows through muscles to remove lactic acid by oxidisation.

Question 10

What does DNA stand for?

Answer 10

Deoxyribose nucleic acid