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- It starts with NADH and FADH2 transporting protons through the cell, creating ATP through a series of reactions. Toward the end of the electron transport chain, the hydrogen from the coenzymes meets the oxygen that the cell has consumed and reacts with it to form water. In this way, water is created as a byproduct of the metabolism reaction.
sciencing.com/water-formed-during-cellular-respiration-6245945.htmlHow Is Water Formed During Cellular Respiration? - Sciencing
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May 7, 2018 · Toward the end of the electron transport chain, the hydrogen from the coenzymes meets the oxygen that the cell has consumed and reacts with it to form water. In this way, water is created as a byproduct of the metabolism reaction.
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- Overview
- Introduction
- Steps of cellular respiration
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 phosphorylation.
Cellular respiration is one of the most elegant, majestic, and fascinating metabolic pathways on earth. At the same time, it’s also one of the most complicated. When I learned about it for the first time, I felt like I had tripped and fallen into a can of organic-chemistry-flavored alphabet soup!
Luckily, cellular respiration is not so scary once you get to know it. Let's start by looking at cellular respiration at a high level, walking through the four major stages and tracing how they connect up to one another.
Overview of the steps of cellular respiration.
During cellular respiration, a glucose molecule is gradually broken down into carbon dioxide and water. Along the way, some ATP is produced directly in the reactions that transform glucose. Much more ATP, however, is produced later in a process called oxidative phosphorylation. Oxidative phosphorylation is powered by the movement of electrons through the electron transport chain, a series of proteins embedded in the inner membrane of the mitochondrion.
These electrons come originally from glucose and are shuttled to the electron transport chain by electron carriers NAD+ and FAD , which become NADH and FADH2 when they gain electrons. To be clear, this is what's happening in the diagram above when it says + NADH or + FADH2 . The molecule isn't appearing from scratch, it's just being converted to its electron-carrying form:
NAD+ + 2e− + 2H+ → NADH + H+
FAD + 2e− + 2H+ → FADH2
To see how a glucose molecule is converted into carbon dioxide and how its energy is harvested as ATP and NADH / FADH2 in one of your body's cells, let’s walk step by step through the four stages of cellular respiration.
Oct 7, 2021 · It is important to know where the hydrogen bonds form between water molecules (oxygen of one water molecule to the hydrogen atom of another).
Jan 15, 2021 · Cellular respiration is the process through which cells convert sugars into energy. To create ATP and other forms of energy to power cellular reactions, cells require fuel and an electron acceptor which drives the chemical process of turning energy into a useable form.
- Gabe Buckley
Cells do cellular respiration to extract energy from the bonds of glucose and other food molecules. Cells can store the extracted energy in the form of ATP (adenosine triphosphate). What is ATP?
Oct 22, 2024 · In the oxidative phosphorylation stage, each pair of hydrogen atoms removed from NADH and FADH 2 provides a pair of electrons that—through the action of a series of iron-containing hemoproteins, the cytochromes—eventually reduces one atom of oxygen to form water.
What role does water play in photosynthesis and cellular respiration? Which do you think is stronger: the bonds between the hydrogen and oxygen atoms within a water molecule, or the bonds between the hydrogen and oxygen atoms between water molecules? Explain your answer.
