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In Every Body Cell

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In Every Living Cell

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11y ago
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12y ago

Cellular respiration is the process that releases energy by breaking down food molecules in the presence of oxygen. Cellular repiration takes place in the mitochodrion. The 3 phases of cellular respiration are Glycolysis (Fermentation), Krebs Cycle, and Electron Transport. Glycolysis takes place in the cytoplasm. The Krebs cycle and electron transport takes place in the mitochondria. Aerobic respiration (requires oxygen) includes glycolysis, Krebs cycle, and electron transort with end products of carbon and hydrogen and a net gain of 36 ATP. Aerobic respiration (does not require oxygen) includes fermentation including glycolysis with end products of lactic acid or ethyl alcohol and carbon; and a net gain of 2 ATP.

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12y ago

Cellular respiration occurs in the mitochondria.
Cellular respiration is the process by which a living creature's cells turns glucose into energy.

There are 3 main steps in cellular respiration: Glycolosis; the Krebs Cycle; and Oxidative Phosphorylation, also known as the electron transport chain.

Glycolysis

Summary:

* Outside Mitochrondria, in cell's fluids * In goes Glucose, 2 ATP, and 2 NAD+

* Out comes a total of 4 ATP, 2 NADH, and 2 Pyruvate (Pyruvic Acid)

Explanation:

# Glycolysis begins with a molecule of Glucose. This process of Glycolysis occurs in the fluid outside of the mitochondria (the organelle in which cellular respiration occurs), and it begins by having 2 molecules of Adenosine Triphospate (ATP, the body's main way of storing/using energy). The 2 ATP molecules cause the glucose molecule to split into 2 molecules with 3 carbon atoms and 1 phospate group (from the ATP). The ATP becomes Adenosine Diphospate (ADP).

# Now focusing on only 1 of the 3 carbon atoms created, a phospate group (these "hang out" in your cells) attaches to the "other end" of the 3 carbon chain. This makes the molecule lose 2 electrons, which are given to NAD+, a carrier molecule. NAD+ becomes NADH when there are 2 more electrons. # The 3 carbon molecule with 2 phosphate groups on each end then loses its phospate groups. They attach to ADP, and make it become ATP. The three carbon molecules are called Pyruvic acid. These then move to the Krebs Cycle. The Krebs Cycle:

Summary: (For only one of the 2 pyruvates from Glycolysis)

* Inside mitochrondrion's fluid matrix in inner membrane * In goes Pyruvate, 3 H2O(water), ADP, FAD, 4 NAD+ * Out comes 3 CO2(Carbon dioxide), ATP, FADH2, 3 NADH Explanation:

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9y ago

Cellular respiration begins with a pathway called glycolysis in the chloroplast. It then continues in the mitochondria with the krebs cycle.

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7y ago

mitochondriaThere are two sites in the cell.They are the cytoplasm and the mitochondria

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14y ago

mitochondria

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14y ago

Mitochondria

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Q: Where does the cellular respiration occur?
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