Overview of photosynthesis

Photo + synthesis

“light-making”EQ: what is being made?

Making through light

• Photosynthesis produces ATP from ADP

• ATP is cell’s energy package

ADP + P = ATP So, we can say, photosynthetic

organisms are producers.

Producers of what?

1) ADP + P = ATP,2) ATP is cell’s

energy package3) Definition of a

producer

Photosynthesis in chloroplasts

• Chloroplast = grana + stroma• Grana are stacks of thylakoids,• Stroma is the fluid outside the grana.

• Thylakoids do the work of photosynthesis—Taking in the water and carbon dioxide and

making glucose and oxygen

Photosynthesis reactions happen in parts

• 1) light-dependent reactions-energy captured from the sunlight—water is broken down and oxygen released,

• 2) light independent reactions-use energy from light-dependent reactions to make glucose.

PhotosynthesisCarbon dioxide + water glucose + oxygen

1) The light-dependent reaction makes the energy to….

2) Perform the light independent reaction of making the glucose.

EQ: How is energy from sunlight used to make glucose molecules?