photosynthesis. light dependent reaction vs. light independent reaction

Photosynthesis

Light Dependent Reactionvs.

Light Independent Reaction

Light Dependent Reaction• Light, water, NADP+, and ADP enter the thylakoid.• Oxygen, ATP, NADPH leave• Requires light to occur• Stores energy temporarily

Light Independent Reaction

• Also known as Calvin cycle• ATP, NADPH, and CO2 enter• ADP,NADP+, and sugar exit• Stores energy for long period of time. • Does not need light to occur

• Which reaction stores energy temporarily?¿Qué reacción almacena energía

temporalmente?

• Which stores energy for long periods of time?¿Cuál almacena la energía por períodos del

tiempo largos?

Gas Exchange

• Stomata-– Openings in the leafs where gases can enter and

leave

• Which gas enters through the stomata?¿Qué gas entra a través de los estomas?

• Which gas leaves through the stomata?¿Qué gas se va a través de los estomas?

Photosynthesis is affected by…

• Sunlight• Water availability• CO2• Temperature

• How could you test whether light intensity effects photosynthesis?

¿Cómo podría usted probar si la intensidad de luz efectúa fotosíntesis?

ATP vs. ADP

• Energy carrier

• Adenosine Triphosphate

vs. Adenosine Diphosphate

NADPH vs. NADP

• Electron carrier• Accepts H+ from Water

• What is the electron carrier for the chloroplast?

¿Cuál es el portador del electrón para el cloroplasto?

• What is the energy carrier for the reaction?¿Cuál es el portador de energía para la reacción?

Parts of the Chloroplast

• The light independent reaction takes place in the ___________.

La reacción independiente ligera ocurre en el ___________.

• The light dependent reaction takes place in the ___________.

La reacción dependiente ligera ocurre en el ___________.

• What is a stack of thylakoids called?¿Qué un apilado de thylakoids se llama?

• Where does photosynthesis take place?¿Dónde la fotosíntesis ocurre?

Chlorophyll

• Pigment that traps sunlight• Absorbs all colors but green• The chloroplast is green because green is reflected