Cells and Energy!! Part 2.

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Presentation transcript:

Cells and Energy!! Part 2

4.2 Overview of Photosynthesis Objectives Explain what producer organisms are Summarize how photosynthesis works

Key Concept: The overall process of photosynthesis produces sugars that store chemical energy Main Idea #1: Photosynthetic organisms are producers Main Idea #2: Photosynthesis in plants occurs in chloroplasts

Main Idea #1: Photosynthetic organisms are producers Producers make their own source of chemical energy. Plants use photosynthesis and are producers. Photosynthesis captures energy from sunlight to make sugars.

Chlorophyll is a molecule that absorbs light energy. Chloroplast Leaf cell Leaf Chlorophyll is a molecule that absorbs light energy. In plants, chlorophyll is found in organelles called chloroplasts.

Main Idea #2: Photosynthesis in plants occurs in chloroplasts stroma grana (thylakoids) Photosynthesis takes place in two parts of chloroplasts. grana (thylakoids) stroma Stroma is the fluid surrounding the grana inside a chloroplast