Photolysis

Question 1

When does photolysis happen faster? And why?

Answer 1

• In the presence of chlorophyll
• because chlorophyll acts as a catalyst

Question 2

What occurs in non-cyclical photophosphorylation?

Answer 2

• The electrons and protons from photolysis replace those that are lost in reduced NADP (NADPH)

Question 3

What occurs during cyclical photophosphorylation ?

Answer 3

• Elections are recycled
• the electrons from photosystem 1 are passed back to photosystem 2
• so the only product is ATP