Cell Energy: Class Notes 2 Photosynthesis Part 1.

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Presentation transcript:

Cell Energy: Class Notes 2 Photosynthesis Part 1

I. Photosynthesis happens in the chloroplasts

II. Ingredients for Photosynthesis A.Plants take in carbon-dioxide (CO 2 ) and water (H 2 O) and create glucose(C 6 H 12 O 6 ) and oxygen gas(O 2 ) The equation is 6CO 2 +6H 2 0→C 6 H 12 O 6 +6O 2

B. Two Parts of Photosynthesis 1.Light Dependent Reactions- Convert light energy to chemical energy through an electron transport chain 2. Light Independent Reactions- Use the chemical energy to make glucose in the Calvin Cycle

III. Light Dependent Reactions A. Chlorophyll in the thylakoid membrane of the chloroplast trap the energy from sunlight.

B. The energy from the sun is passed to an electron. It becomes excited and travels through an electron transport chain.

C. At the end of the chain, the excited electron is given to a molecule called NADP+. D. The NADP+ takes the excited electron, and 2 hydrogens from water, becoming NADPH.

E. ATP is created, and oxygen is released. F. The ATP and NADPH are passed to the next phase in photosynthesis.

Summary What do plants need for photosynthesis, and what do they produce? What are the 2 parts of photosynthesis? What does the first part of photosynthesis create?