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Photosynthesis and Cellular Respiration. Shivani Patel. The Photosynthesis Equation. Cellular Respiration Equation. Notice Anything?. The photosynthesis equation is the cellular respiration equation, but backwards. Photosynthesis makes the sugar.

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notice anything
Notice Anything?
  • The photosynthesis equation is the cellular respiration equation, but backwards.
  • Photosynthesis makes the sugar.
  • Through cellular respiration, we turn in into energy.
  • All living things contain a form of glucose also known as sweet sugar.
  • “Glu” means sweet
  • “Cose” means sugar
  • Light is important. Very important.
  • Light is a form of electromagnetic energy.
  • Green light is reflected.
  • Red and blue are mainly absorbed.
  • Primary colors are green, red, and blue.

NOT yellow, magenta (red), and cyan (blue).

chloroplast and chlorophyll
Chloroplast and Chlorophyll
  • Chloroplast has an important role.
  • It has chlorophyll that capture’s the sun’s rays.
  • Inside chloroplasts are thylakoids that are disc-like.
  • They trap the sun’s rays.
  • Chlorophyll is a chemical found inside the chloroplast giving its green pigment.
process of photosynthesis
Process of Photosynthesis
  • It doesn’t happen overnight.
  • There are 2 main steps.
  • First- light dependent reaction (Calvin cycle)
  • It turns light into ATP
  • Second- light independent reaction– it doesn’t necessarily mean that it happens at night.
  • It happens when ATP is turned into glucose.
cellular respiration
Cellular Respiration
  • How living organisms turn glucose into energy
  • There are byproducts like water and carbon dioxide.
  • Carbon dioxide is a waste.
  • CO2 mixes with water helping maintaining the blood’s pH (around 7.5).
  • Too much carbon dioxide causes to pH to lower, so CO2 has to leave on a continuous process.
  • Glucose: A simple, 6 carbon sugar that serves as the primary energy source
  • ATP (Adenosine triphosphate): The major energy currency of the cell.
  • NADH and FADH2: High energy electron carrier used to transport electrons generated in Glycolysis and Krebs Cycle to the Electron Transport Chain.
stages of c ellular respiration
Stages of Cellular Respiration
  • Glycolysis
  • Krebs's Cycle A.K.A. Citric Acid Cycle
  • Electron Transport Chain
  • The first stage is glycolysis in aerobic and anaerobic cellular respiration.
  • An easy way to think about it is splitting sugars.
  • It occurs in the cytoplasm.
  • It breaks glucose down to two pyruvic acid or pyruvate. This stage doesn’t require oxygen.
  • This stage requires 2 ATP and produces 4 ATP.
  • Aerobic?
  • Anaerobic?
  • Fermentation takes NADH to produce NAD+.
  • This stage makes nothing, no energy or ATP.
krebs s cycle a k a citric acid cycle
Krebs's Cycle A.K.A. Citric Acid Cycle
  • This step uses the pyruvic made in the glycolysis stage.
  • It produces ATP and several molecules of NADH AND FADH2.
  • This stage produces 2 ATP.
electron transport chain
Electron Transport Chain
  • The chain is made using FADH2 AND NADH (made in the previous cycles).
  • The electron transport chain makes a proton gradient that makes the production of 34 ATP.
  • It takes place in the mitochondria matrix.

By the way, Cellular Respiration produces a total of 38 ATP.