Photosynthesis.

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Presentation transcript:

Photosynthesis

Plants are producers Plants make their own food by photosynthesis

Photosynthesis Energy from the sun is trapped by a pigment called chlorophyll inside chloroplasts and is used to turn water and CO2 into glucose.

Photosynthesis has 2 Parts 1. Light-Dependent Reaction Must have Light Uses light to split water (photolysis) Converts radiant energy into chemical energy Makes Oxygen * Occurs in the Thylakoid of chloroplasts!

2. Light-Independent Reaction/Dark Reaction/Calvin Cycle Can work at night or day Uses CO2 & energy from light dependent Rxs Makes glucose (sugar) * Occurs in the stroma of chloroplasts!

Equation for Photosynthesis

Photosynthesis

The sun and the electromagnetic spectrum We can only see the visible spectrum ROY-G-BIV Green plants don’t use very much green because they reflect it