Biology I Unit 4.2: Photosynthesis

6 CO2 + 6H2O + light energy --> C6H12O6 + 6O2

What is the equation for photosynthesis?

Solar energy

What type of energy does the light dependent reaction use?

Chemical (ATP)

What form of energy do organisms use?

Photosynthesis

transforms energy from the sun to a usable form of energy for other organisms.

6CO2 + 6H2O

What are the reactants of photosynthesis?

C6H12O6 + 6O2

What are the products of photosynthesis?

Thylakoid

disc-shaped, membrane-bound structure inside a chloroplast where the light-dependent reaction of photosynthesis take place.

Grana

pancake-like stacks of thylakoid membrane.

Stroma

fluid-like substance that fills the space between the grana.

The chloroplast

Where does photosynthesis take place?

Capture light energy from the sun and store energy in ATP and NADPH.

What is the purpose of the light dependent reaction?

Grana (thylakoid membranes where chlorophyll is stored).

Where does the light dependent reaction occur?

It breaks into H+ and O2 ions.

What happens to water in the light dependent reaction?

ATP, NADPH, and H+

What leaves the grana for the stroma to be used in the Calvin cycle?

Chlorophyll

captures the energy from the sun.

Photosystem

captures light, energizes electrons.

ATP synthase

used H+ ions to turn ADP + Pi --> ATP.

Electrons (e-)

NADP + H+ use energy from what to make NADPH?

No, the light independent reaction does not require solar energy.

Does the light independent reaction require energy?

Calvin cycle or dark reaction.

What are other names for the light independent reaction?

Use the energy from the ATP and NADPH (from the light-dependent reaction) to make glucose.

What is the purpose of the Calvin cycle?

Stroma

Where is the location of the Calvin cycle?

H+ + CO2 to form glucose.

Summarize the Calvin cycle.

ATP and NADPH

What is the Calvin cycle powered by?

H+ and CO2

What is the input of the Calvin cycle?

NADPH and ATP

What is used/gone in the Calvin cycle?

G3P

What are the outputs for the Calvin cycle?

Twice so G3P + G3P = glucose.

How many times does the Calvin cycle happen?