Aerobic and Anaerobic Respiration

Question 1

What is cellular respiration?

Answer 1

An exothermic reaction which is continuously occurring in living cells. The energy transferred supplies all the energy for living processes.

Question 2

Compare the processes of aerobic and anaerobic respiration.

Answer 2

Aerobic needs oxygen to work.
Aerobic produces CO2 + water, anaerobic produces lactic acid.
Aerobic respiration produces much more energy per glucose molecule than anaerobic respiration.
Both need glucose.

Question 3

What do organisms need energy for?

Answer 3

Chemical reactions to build larger molecules.
Movement
Keeping warm

Question 4

What is the equation for aerobic respiration?

Answer 4

glucose + oxygen = carbon dioxide + water

C6 H12 O6 + O2 = CO2 + H2O

Question 5

What is the equation for anaerobic respiration in muscles?

Answer 5

glucose = lactic acid

Question 6

What is the equation for anaerobic respiration in plant and yeast cells?

Answer 6

glucose = ethanol + carbon dioxide

Question 7

How is anaerobic respiration used in yeast cells?

Answer 7

Happens in microorganisms as they need to release energy too. This type of respiration is called fermentation and produces ethanol + CO2, ethanol is useful for brewers and winemakers and CO2 helps make bread rise.