Biology Topic 4 Higher Content

Question 1

What is meant by the limiting factor in photosynthesis?

Answer 1

The factor that restricts the reaction from continuing

E.g there may be lots of carbon dioxide but insufficient light for photosynthesis to take place

Question 2

How does the body remove lactic acid?

Answer 2

• blood flowing through the muscles transports the lactic acid to the liver
• the liver converts the lactic acid into glucose

Question 3

What is oxygen debt?

Answer 3

The amount of extra oxygen the body needs to react with the lactic acid to remove it from cells