Light and Dark Reactions

Do LDR need light?

• Yes

• No

When can light reactions occur?

• day

• night

• anytime

Tags

NGSS.HS-LS1-5

where do light reactions occur

• in the grana

• in the stroma

• in the thylakoid

what are the reactants of light reactions?

• light

• water

• carbon dioxide

• oxygen

what are the products of light reactions?

• ATP and NADPH

• Oxygen

• Carbon Dioxide

• glucose

Photosynthesis is converting _____ energy to _____ energy

• chemical to light

• light to chemical

• mechanical to chemical

• kinetic to light

Tags

NGSS.HS-LS1-5

what is the first step of light reactions

• energy rich molecules (atp and nadph) are produced- used to make glucose in the calvin cycle

• water is split by sunlight-O2 is a by product, H+ ion build up

• Chlorophyll captures the sun's energy-pigments are responsible

what is the second step of light reactions

• Water is split by sunlight- oxygen is a by product, h+ ion build up

• chlorophyll captures the suns energy- pigments are responsible

• energy rich molecules (atp and nadph) are produced - used to make glucose in the calvin cycle

Tags

NGSS.HS-LS1-5

what is the third step of light reactions

• chlorophyll captures the sun's energy - pigments are responsible

• energy rich molecules (atp and nadph) are produced- used to make glucose in the calvin cycle

• water is split by sunlight- o2 is a by product, H+ ion build up

Tags

NGSS.HS-LS1-5

what is the first step of dark reactions

• co2 enters the stomata

• atp/nadph come from LDR fuel

• used to produce glucose/carbs and other macromolecules