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The carbon cycle (video) | Carbon cycle | Khan Academy
Carbon is crucial for life, forming molecules like glucose, ATP, amino acids, and DNA. The carbon cycle involves plants taking in carbon dioxide, fixing carbon, and creating organic molecules.
The carbon cycle (article) | Ecology | Khan Academy
Jun 10, 2016 · Learn how carbon moves through Earth's ecosystems and how human activities are altering the carbon cycle.
The Calvin cycle (article) | Photosynthesis | Khan Academy
How the products of the light reactions, ATP and NADPH, are used to fix carbon into sugars in the second stage of photosynthesis.
The nitrogen cycle (video) | Ecology | Khan Academy
So as the plant in the video on the carbon cycle we talk about how plants fix carbon, carbon makes up a large part of organic molecules, but many important organic molecules also need …
Pyruvate oxidation | Cellular respiration (article) | Khan Academy
Overall, pyruvate oxidation converts pyruvate—a three-carbon molecule—into acetyl CoA —a two-carbon molecule attached to Coenzyme A—producing an NADH and releasing one …
The carbon cycle (video) | Khan Academy
Carbon is crucial for life, forming molecules like glucose, ATP, amino acids, and DNA. The carbon cycle involves plants taking in carbon dioxide, fixing carbon, and creating organic molecules.
Overview of cellular respiration (video) | Khan Academy
The Krebs cycle occurs in the mitochondrial matrix, where pyruvate is turned into acetyl-CoA, which then goes through a series of reactions, producing ATP, NADH, and FADH2.
Light-dependent reactions (photosynthesis reaction) (article)
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 …
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