ipl-logo

Glycolysis, Krebs Cycle And The Electron Transport Chain

446 Words2 Pages

The three processes involved in aerobic respiration are Glycolysis, Krebs cycle and the Electron Transport Chain. In cellular respiration when molecules are entered into the cell, when glucose enters a tissue cell. In the cell, cellular respiration will oxidized the glucose molecule which yields in high resulting elections. By this, the storage form in cells will make ATP. Glycolosis, is defined as splitting sugars with is the first step in cellular respiration occur in the cytoplasm of the cell. Two ATP molecules transfer energy to the glucose energy forming a 6 carbon sugar diphosphate, as it splits into a 2, 3 carbon molecules are converted to pyruvate which forms ATP. In the process of this action, a net of 2 molecules of atp, 2 molecules of pyruvate, and 2 electron carrying molecules oh NADH are produce, Although when oxygen is present, pyruvate and NADH enter the mitochondria when yields the next stage of cellular respiration. …show more content…

A pyruvate molecule of actyl CoA in converted into additional compounds by which the pyruvate oxidation reaction transfers electrons to the NAD that results in the assembly of NADH. This is where a carbon is loss resulting in carbon dioxide. The Krebs cycle, actyl CoA, binds with oxaloacetate, in enzyme redox reactions, carbons, hydrogen’s, oxygen’s in pyruvate end up as carbon dioxide and water. In glycolosis, every glucose that enters the path way of the cycle with complete twice, this occurs one for each of the molcecule of the pyruvate that has entered the mitochondria at this step. During pyruvate oxidation and krebs cycle, a net of 8 NADH, 2 FADH 2 ,2 ATP and 6 Co2 are produce for each glucose

Show More
Related
146 Words | 1 Pages

Many organisms use energy to perform their cellular functions. That energy comes from the energy that is stored in food then converted to adenosine triphosphate or ATP. ATP can be obtained with or without oxygen, aerobic respiration and anaerobic respiration. Aerobic respiration produces carbon dioxide (CO2) as a by-product while anaerobic respiration produces Ethanol (C2H6O) or Lactic acid (C3H6O3). In aerobic respiration the “CO2 produced during cellular respiration can combine with water to produce carbonic acid.”

Read More
1200 Words | 5 Pages

These mitochondria perform the process of cellular respiration. Cellular respiration is an intracellular process that converts energy found in bonds of nutrients like glucose and lipids into ATP. ATP is the main energy currency

Read More
420 Words | 2 Pages

The stomata are the most critical piece to this process, as this is where CO2 enters and can be stored, and where water and O2 exit. Cellular respiration also known as oxidative metabolism is important to convert biochemical energy from nutrients in the cells of living organisms to useful energy known as adenosine triphosphate (ATP). Without cellular respiration living organisms would not be able to sustain life. This process is done by cells exchanging gases within its surroundings to create adenosine triphosphate commonly known as ADT, which is used by the cells as a source of energy. This process is done through numerous reactions; an example is metabolic pathway.

Read More
489 Words | 2 Pages

In cellular respiration, your body uses glucose and oxygen in a process to make energy. The glucose is split in the cytoplasm of your cell, then its atoms go through a complex process which turns them into ATP, a useable energy source for your body. ATP can either be used, or stored in lipids for long term use. Lipids are one of the most diverse macromolecules because of the many functions they can perform. They make up a cell membrane, so without them, there would be no humans, they also can be used as a long term energy storage in the form of fat.

Read More
858 Words | 4 Pages

Once in the mitochondria, namely in the matrix, mitochondrial LDH catalyses the conversion of lactate back to pyruvate. The pyruvate is oxidized through the PDH (pyruvate dehydrogenase) reaction to acetyl-CoA. The acetyl-CoA would then continue through the TCA cycle so as to provide energy. (Kowalchuk JM et al,

Read More
264 Words | 2 Pages

Arsenate can replace inorganic phosphate in step 6 of glycolysis that produces 1,3-bisphosphoglycerate instead of glyceraldehyde 3-phospahte. This yields 1-arseno-3-phosphoglycerate instead, which is unstable and quickly hydrolyzes, forming the next intermediate in the pathway, 3-phosphoglycerate. This is the same product that is normally formed in step 7. This is a problem because the product forms before it should and therefore does not reach the enzyme so the energy released cannot be harvested to generated ATP. Arsenate wastes energy by the uncoupling phosphotransfer reaction so its very POISONOUS.

Read More
1788 Words | 8 Pages

b) Discuss the NADH, FADH2, production steps in the TCA cycle and explain the importance of the TCA cycle to function respiratory chain. The citric acid cycle refers to the first components that create during the cycle’s reactions- citrate / in it are protonated form citric acids. However series of reactions known as tricarboxylic acids (TCA) cycles, for three carboxyl groups on its primary 2 intermediates or the kreb cycles, after its discoverer Hans Krebs. Whatever citric cycles is a central driver of cellular respirations, it obtains acetyl co-A produced by the oxidation of pyruvate and originally derived from glucose as its starting material and in a series of redox reactions.

Read More
615 Words | 3 Pages

Introduction: Respiration encompasses cellular respiration and external respiration. In cellular respiration the vast majority of energy that most living organisms need are satisfied by the mitochondria. The main driving force behind the mitochondria producing the high yield of ATP would be due to oxygen gas. For external respiration, encompasses breathing, gas exchange in the alveoli, transportation of gases through the blood, the delivery of gases to the systemic tissues, and the gas exchange at the systemic capillaries.

Read More
1363 Words | 6 Pages

In the process, electrons and a hydrogen ion are transferred to NAD to form high-energy NADH. Following glycolysis, comes the Krebs cycle, also called the citric acid cycle which uses the two molecules of pyruvic acid made in glycolysis and yields high-energy molecules of NADH, FADH2 and some ATP. By the end of the Krebs cycle, the final product is oxaloacetic acid, and receives an additional acetyl-CoA molecule to begin another turn of the cycle. The Krebs cycle forms two ATP molecules, ten NADH molecules, and two FADH2 molecules. The

Read More
1017 Words | 5 Pages

Introduction Enzymes regulate the biochemical processes in various organisms. The enzymes catalyze reactions and at times help with the generation of the ATP, which is an energy source. Among the enzymes of biological importance is the succinyl CoA synthetase. The essay focuses on the structure, functions, and relations of succinyl CoA synthetase.

Read More
1432 Words | 6 Pages

Then, tests are performed to determine if the products of aerobic and anaerobic respiration are present in the flasks. The citric acid cycle consists of a series of chemical reactions used by all aerobic organisms to release stored energy through the oxidation of acetyl-CoA derived from carbohydrates, fats, and proteins into carbon dioxide and chemical energy in the form of ATP (Biology). The tests detect the presence of carbon dioxide and ethanol. Carbon dioxide should be present irrespective of the type of respiration taking place, but ethanol is present only if fermentation has occurred. Another factor that can indicate whether fermentation occurred or cellular respiration occurred is the amount of glucose utilized during incubation.

Read More
998 Words | 4 Pages

The 2 molecules of pyruvate are passed down to the oxidation of pyruvate, and NADH will be used for the electron transport chain. The rest of the products, 4 ATP, ADP, and P, are used where needed in the cell. After glycolysis occurs, oxidation of pyruvate takes places in the mitochondrial matrix. During this stage,

Read More
911 Words | 4 Pages

Simple sugars such as glucose, fructose, and galactose are converted to a three carbon compound called pyruvate. Because this process occurs in the cytosol and does not require oxygen, it is termed anaerobic. The net energy yield from anaerobic respiration is two molecules of ATP. In the absence of oxygen, pyruvate is converted to lactic acid, which is a metabolic dead end. Although the liver can convert lactic acid to pyruvate and pyruvate back into glucose, this requires the hydrolysis of more

Read More
595 Words | 3 Pages

It is never used up in the chemical reaction, however it is recycled and used over and over again. Description Metabolic pathways are controlled by the presence or absence of particular enzymes in the metabolic pathway and also through the regulation of the rate of reaction of key enzymes within the pathway [1]. Each enzyme required for a step in metabolic pathway is a central point of control of the overall metabolic pathway. Without the specific enzyme to catalyze a reaction, the metabolism would be too slow to support life and the pathway cannot be completed [2].

Read More
1393 Words | 6 Pages

The pyruvate molecules that were created in glycolysis are then sometimes fermented into lactic acid. Lactic acid can be used to transform lactose into lactic acid, for example in the making of yoghurt. This process is also used in animal muscles when they require extra energy in their tissue in order to run faster than oxygen can be given. C6H12O6 (glucose) > 2CH3CHOHCOOHc*lactic acid) is the net equation for glucose to lactic acid.

Read More

More about Glycolysis, Krebs Cycle And The Electron Transport Chain

Open Document