Photosynthesis+and+respiration+pvms[1]
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Transcript of Photosynthesis+and+respiration+pvms[1]
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Photosynthesisand
Respiration
How are they related?
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PhotosynthesisThe process of photosynthesis
is a chemical reaction.
It is the most important chemical reaction on our planet.
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What is the Process? The process of changing light energy (from
the sun or other light source) to chemical energy
This energy is stored as sugar (a carbohydrate)
Occurs in plants and some algae Plants need light energy, CO2, and H2O Photosynthesis takes place in the chloroplasts, using chlorophyll, the green pigment in plants
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What Happens in this Chemical Reaction?
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How Do Scientists Write this Chemical
Reaction?
What does this mean? Six molecules of carbon dioxide react with
six molecules of water to form 1 molecule of glucose and six molecules of oxygen.
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HUH?
Plants capture light energy and use that energy to make sugar (which can be changed to starch, a carbohydrate, also)
Sunlight provides the energy needed by chlorophyll to change molecules of carbon dioxide and water into glucose
Oxygen is also released in this reaction
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Why Is This So Important?
We cannot make our own food (glucose, energy), we must get our food from plants.
Plants are the first step in the food chain.
The oxygen released during photosynthesis is necessary for all living things.
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Respiration There are two types of respiration:
and
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What is Cellular Respiration?
The process of cellular respiration is a chemical reaction.
It is the most important chemical reaction in our bodies
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What is the Process? Cellular respiration is a process, like
photosynthesis. Cellular respiration takes place in the
mitochondria. The mitochondria take in nutrients (glucose
and oxygen), break them down, and create energy for the cell.
This process of creating cell energy is known as cellular respiration.
Takes place in all living things (even plants!)
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Let’s Write the Chemical Equation
Glucose + Oxygen Carbon Dioxide + Water
Or another way of writing the equation is:
C6H12O6 + 6O2 6CO2 + 6H2O
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Notice Any Similarities?
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Notice any now?
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Photosynthesis and Respiration are Related
It is the basic cycle on Earth.
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Some information from Science-class.net