Light Dependent Reactions vs Dark Reactions of Photosynthesis

Light Dependent Reactions vs Dark Reactions of Photosynthesis Notes #10

Photosynthesis Reactions 2 types 1) Light-Dependent Reactions -requires light Location in chloroplast: occurs in the thylakoids Function: absorbs sunlight & makes O 2 and chemical energy

Reactants used: * H 2 O, NADP+, & ADP Products produced: * O 2, NADPH, & ATP

2. Calvin Cycle (Dark Reaction/Light. Independent Reaction): Light IS NOT needed to make sugar Location: Stroma Function: uses chemical energy from the light-dependent reaction to make sugar (glucose) Reactants used: CO 2, ATP, NADPH Products produced: Glucose, ADP, & NADP+

Reactions of Photosynthesis Reactions Light. Dependent Calvin Cycle (Dark Reaction) Location in Chloroplast Reactants Thylakoids H 2 O, NADP+, & ADP O 2, ATP, & NADPH CO 2, NADPH, & ATP Glucose, ADP, & NADP+ Stroma Products

Class Work Colors Needed: Dark Green; Light Green: Blue; Yellow; Orange Color the Chloroplast diagram in the back of Notes #10 Label all the blanks with the appropriate vocab words (Use pg 209 as a reference) STAMP NEEDED WHEN COMPLETED

Overview of Photosynthesis Chemical Eq: 6 CO 2 + 6 H 2 O light C 6 H 12 O 6 + 6 O 2 B) H 2 O D) CO 2 C) O 2 E) C 6 H 12 O 6 A) Light (Glucose)

Photosynthesis Review 1) What does the Light-dependent reaction require in order for it to work? ANS: Light 2) Water in plants gets converted into this gas for humans to use. ANS: Oxygen 3) Where does the Light-Dependent Reaction occur in the chloroplast? ANS: The thylakoids 4) How is the Dark-Reaction different from the Light. Dependent Reaction? ANS: It does not require light. 5) What do plants convert CO 2 into during the Dark. Reaction? ANS: Glucose