Aerobic and Anaerobic respiration

Question 1

What is aerobic respiration ?
Where does aerobic respiration take place ?
Word equation for aerobic respiration

Answer 1

respiration using oxygen. It’s the most efficient way to transfer energy from glucose. aerobic respiration goes on all the time in plants and animals.
- inside mitochondria

Glucose + oxygen -> carbon dioxide + water

Question 2

When does anaerobic respiration occur ?
What is anaerobic respiration ?
Word equation for anaerobic respiration in muscles.

Answer 2

• during vigorous exercise when you body can’t supply enough oxygen to your muscles.
• Anaerobic means w/o oxygen . Its the incomplete breakdown of glucose making lactic acid

Glucose -> lactic acid

Question 3

When is anaerobic respiration useful ?

Answer 3

only during emergencies, as anaerobic respiration does not transfer as much energy as aerobic respiration, because glucose is not fully oxidised

Question 4

why does Anaerobic respiration occur in plants and leaves?

Answer 4

• plant and yeast cells can’t respire without oxygen but they produce ethanol; and co2 instead of lactic acid.

Glucose -> ethanol + c02

Question 5

What’s fermentation and uses of it ?

Answer 5

Anaerobic respiration in yeast cells -> fermentation
- food and drink industry, fermentation by yeast is great value as its used to make alcohol and bread
- In breadmaking, fermentation is used to make the bread rise
- beer and wine making, fermentation used to produce alcohol