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Khan Academy
Monitoring of the cell's energy state through levels of molecules like ATP, ADP, AMP, and NADH is another common feature. The diagram below summarizes the key enzymes we’ve discussed, along with some of their most important regulators.
Khan Academy
The Citric Acid Cycle article on Khan Academy explains the steps and significance of this crucial process in cellular respiration.
Khan Academy
Throughout cellular respiration, there are many steps where ADP and Pi are used to make ATP. However, where do ADP and Pi come from? Are they provided by previously broken down ATPs?
Khan Academy
Unravel the mystery of ATP production in cellular respiration. Explore how glucose oxidation contributes to ATP synthesis, understand the roles of NADH and FADH2, and learn why ATP yield varies. Dive into the electron transport chain and the proton gradient's role in ATP synthase.
The light-dependent reactions - Khan Academy
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 photophosphorylation, electrons follow a different, circular path …
Khan Academy
Review of photosynthesis, including light-dependent and light-independent reactions, and their significance in cellular energetics.
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. Finally, oxidative phosphorylation uses NADH and FADH2 to create a …
Glycolysis - Khan Academy
Introduction to glycolysis. Role of glycolysis in producing ATPs and NADHs and converting glucose to pyruvates.
Myosin and actin (video) | Muscles | Khan Academy
Learn how proteins, specifically myosin and actin, use ATP to produce movement in muscles. Understand the role of ATP hydrolysis in this process. This is a key part of how muscles function, converting chemical energy into mechanical energy.