Light-Dependent Reactions & Light-Independent Reactions

thylakoids

sac-like photosynthetic membranes, on the diagram they are each individual member of a stack

granum

stack of thylakoids

stroma

region outside the thylakoid membranes in chloroplasts

light dependent reactions

reactions of photosynthesis that use energy from light and water to produce ATP and oxygen that is released into the atmosphere

Calvin Cycle / Light Independent reactions

plants use ATP and CO2 to produce high-energy sugars such as glucose

What is the function of ATP?

Provides small amounts of energy for cellular reactions to take place.

What factors affect photosynthesis

type of light and pigments
amount/intensity of light
source/abundance of CO2
source/abundance of H2O
temperature and pH

Where do light dependent reactions take place?

within the thylakoid membrane of the chloroplast

Where does the Calvin Cycle take place?

stroma

What molecules are NEEDED for photosynthesis?

carbon dioxide and water

What molecules are PRODUCED in photosynthesis?

glucose and oxygen

chloroplast

organelle where photosynthesis occurs

What pigment makes plants green?

chlorophyll

light-independent reaction are also called

Calvin Cycle, named after Melvin Calvin who discovered these reactions