Photosynthesis

What is Photosynthesis?

A process that converts light (solar) energy into stored (chemical) energy in the form of food molecules like glucose or starch

Process used by AUTOTROPHS like plants and algae to make food.

Where does photosynthesis take place?

• Inside the leaves• Inside the cell• Inside the chloroplast

What does photosynthesis require?

The process requires: Sunlight – source of energy Chlorophyll, the green pigment that

captures light energy. Water (H2O) Carbon dioxide (CO2)

6H2O + 6CO2 C6H12O6 + 6O2

WATER + CARBON GLUCOSE + OXYGEN

DIOXIDE

The photosynthesis equation

Where does photosynthesis take place?

• Inside the chloroplast– Chlorophyll is found inside the chloroplast

Stages of Photosynthesis

1. Energy is captured from sunlight.

2. Light energy is converted to chemical energy stored.

3. The stored energy transforms into carbohydrates using CO2

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Summary of Photosynthesis

6CO2 + 6H2O + sunlight C6H12O6 + 6O2

What are the reactants (needed) for photosynthesis?

What are the products (made) of photosynthesis?

Types of Organisms

• AutotrophsMake their own food

• HeterotrophsObtain energy from the food they consume or absorb

ENERGY

• Energy is the ability to do work

• http://www.galenaparkisd.com/curriculum/science/curriculum_science_grade_6.htm/Photosynthesis-VideoClip.asf

• http://www.brainpop.com/science/cellularlifeandgenetics/photosynthesis/