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Photosynthesis, a process vital for life, involves two main stages: light-dependent reactions and the light-independent reactions (also called the Calvin cycle).

In the Calvin cycle, carbon atoms from CO 2 are fixed (incorporated into organic molecules) and used to build three-carbon sugars. This process is fueled by, and dependent on, ATP and NADPH from the …

Overview of the light-dependent reactions, including the structure of the chloroplast, the photosystems, and how ATP is synthesized.

The ATP and NADPH from the light-dependent reactions are used to make sugars in the next stage of photosynthesis, the Calvin cycle. In another form of the light reactions, called cyclic …

Cellular respiration is a metabolic pathway that breaks down glucose and produces ATP. The stages of cellular respiration include glycolysis, pyruvate oxidation, the citric acid or Krebs cycle, and oxidative …

You can think of ATP and ADP as being sort of like the charged and uncharged forms of a rechargeable battery (as shown above). ATP, the charged battery, has energy that can be used to power cellular …

Learn about the Calvin cycle and its role in photosynthesis on Khan Academy.

We know plants make their own food, but what is the actual process where food is made? Watch this video on Calvin cycle to understand how plants use atmospheric carbon to produce glucose.

Jul 17, 2016 · The Calvin cycle, also called the light-independent reactions, takes place in the stroma and does not directly require light. Instead, the Calvin cycle uses ATP ‍ and NADPH ‍ from the light …