Photosynthesis & Cellular
Respiration
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mages/life/chap1_2/Ph
otosyn.swf://
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Photosynthesis and Cellular Respiration: The Processes that Power Life, Study notes of Biological Sciences
An overview of photosynthesis and cellular respiration, two fundamental processes that enable organisms to produce energy and sustain life. Photosynthesis is the process by which plants convert light energy into chemical energy in the form of glucose, while cellular respiration is the process by which organisms break down glucose to release stored energy. the key components of each process, the role of chloroplasts and mitochondria, and the importance of these processes for all living organisms.
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Photosynthesis & Cellular Respiration http://mrescience.com/i mages/life/chap1_2/Ph otosyn.swf://
Photosynthesis
Photosynthesis is a chemical reaction. Plants use light to make their own food.
Photosynthesis takes place in the cell part known as the CHLOROPLAST
What is needed for photosynthesis to occur?
- Light is needed for photosynthesis to occur.
- The plant’s chloroplasts use the light to make a sugar called glucose.
- Plants make enough glucose to be used during the night and on cloudy days when they don’t get sunlight.
- The extra glucose is stored in the plant’s leaves and other parts as starch.
What happens during
photosynthesis?
Photosynthesis is a chemical reaction. Chemical reactions can be shown in the form of a chemical equation.
EQUATION FOR
PHOTOSYNTHESIS
**6CO 2
- ENERGY C 6 H 12 O 6
- 6O 2 CARBON DIOXIDE WATER GLUCOSE OXYGEN 6H 2 O +**
Describe Photosynthesis
- Changes light to food.
- Glucose is sugar.
- Plants need light, carbon dioxide and water. Photosynthesis
Why is this important to us?
How does photosynthesis help us?
- During the process of photosynthesis, oxygen is produced. The oxygen released is necessary for all living things.
What is Cellular Respiration?
What is Cellular Respiration?
The chemical breakdown of glucose molecules to release stored chemical energy.