Topic 4 - Respiration

Question 1

what is respiration?

Answer 1

the process of transferring energy from glucose, which happens constantly in every living cell

Question 2

what is the energy transferred by respiration used to make?

Answer 2

ATP

Question 3

what are the two types of respiration?

Answer 3

aerobic and anaerobic

Question 4

when does aerobic respiration happen?

Answer 4

when there’s oxygen available

Question 5

what is the word equation for aerobic respiration?

Answer 5

glucose + oxygen = carbon dioxide + water (+ energy)

Question 6

what is the balanced symbol equation for aerobic respiration?

Answer 6

C₆H₁₂O₆ + 6O₂ = 6CO₂ + 6H₂O

Question 7

when do muscles have to start respiring anaerobically?

Answer 7

when the body cannot supply enough oxygen to the muscles for aerobic respiration (e.g. when doing very vigorous exercise)

Question 8

why is anaerobic not the best way to convert glucose into energy?

Answer 8

it releases much less energy per glucose molecule

Question 9

what is the word equation for anaerobic respiration in humans?

Answer 9

glucose = lactic acid + energy

Question 10

what does lactic acid buildup cause?

Answer 10

cramp

Question 11

what is the word equation for anaerobic respiration in plants?

Answer 11

glucose = ethanol + carbon dioxide + energy