Cellular Respiration

Only available on StudyMode
  • Download(s) : 36
  • Published : May 20, 2013
Open Document
Text Preview
-Cellular Respiration

In this paper I will be telling you about Cellular Respiration in excruciating detail. Cellular Respiration is the “Process in which substrate (glucose or other food molecules) is combined with oxygen (oxidation) to release the energy from chemical bonds; formation of ATP (adenosine triphosphate) from ADP and phosphate (phosphorylation of ADP) largely within the mitochondrion of the cell.” Now what does that mean? Basically that is saying that we eat food and breath air in order to store energy in chemical bonds. ATP gives our cells => Tissues => Organs => Organ Systems the energy to function. But how do we make ATP? ...You guessed it; Cellular Respiration!!!Cellular Respiration consists of four steps: 1-Glycolysis 2-Oxidative Decarboxylation 3-Kreb's Cycle 4-Electron Transport System. In conditions of hypoxia(lack of O2) an oxygen debt is given in order to keep cellular respiration going.

First, what is glucose? Glucose is the smallest possible sugar unit. It as a carbohydrate carried in our blood that is a major source of energy for our cells. In the cytosol of a cell(anaerobic conditions) 1-Glucose (C6 H12 O6) during glycolysis is broken down to 2-Pyruvic acid (C3 H4 O3). During this breakdown energy and 4-H atoms are also released. The 4-H atoms are used to reduce(gain electrons) 2-NAD(Nicotinaide Adenine Dinucleotide) molecules. NAD takes both electrons and one Proton(H+) to become NADH and H+. This is used as an intermediate electron carrier for the overall cellular respiration. The energy released from the break down of glucose is used to produce a net of 2 molecules of ATP from ADP and Phosphate. With a overall equation of 1 Glucose + 2 NAD + 2 ADP + 2 P => 2 Pyruvic acid + 2 NADH + 2 ATP. The 2NADH goes to the mitochondria for oxidation in step-4

Now,... More detail. So this process actually goes through 9 steps to do this net reaction. 1.Glucose first needs energy from the...
tracking img