Table of Contents
What four pathways are involved in the breakdown of glucose to carbon dioxide and water?
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.
What are the three pathways involved in the complete breakdown of glucose to carbon dioxide and water?
The three pathways are glycolysis, the electron transport chain, and the Krebs Cycle. The reaction of the pyruvate joining with CoA enzyme and NAD to produce acetyl CoA, NADH, and carbon dioxide.
What are the 3 pathways of breakdown of glucose?
In aerobic respiration, there are three specific processes, which are glycolysis, Krebs cycle and electron transport chain (oxidative phosphorylation). In this process, the glucose is converted to pyruvate during glycolysis and the same pyruvate produces carbon dioxide and water, along with the generation of energy.
What pathway is glucose broken down?
Glycolysis
Glycolysis is the metabolic pathway that converts glucose (C 6H 12O 6), into pyruvic acid ( CH 3COCO 2H). The free energy released in this process is used to form the high-energy molecules adenosine triphosphate (ATP) and reduced nicotinamide adenine dinucleotide (NADH).
What are the 4 phases of glucose breakdown?
What are the three major pathways that occur in cellular respiration?
The metabolic pathway involved in respiration can be split into three main parts:
- glycolysis – occurs in the cytoplasm.
- citric acid cycle – occurs in the matrix of the mitochondria .
- electron transport chain – occurs in the inner membrane of the mitochondria.
What is glycolysis pathway?
Glycolysis refers to a metabolic pathway by which organisms extract energy in the form of ATP during the conversion of glucose into pyruvate and lactate. Glycolysis produces ATP required for energy-requiring reactions and processes, for example, ion transport, protein synthesis and reactions catalysed by kinases.
Where does the breakdown of glucose to carbon dioxide is completed?
In the cell cytoplasm, glucose is broken down to pyruvate. On entry to the mitochondria, pyruvate is converted to carbon dioxide and water.
How is glucose broken down into water?
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.
In which step stage of glucose breakdown is water H2O made?
Water is formed when hydrogen and oxygen react to form H2O during the electron transport chain, which is the final stage of cellular respiration.
What are the 2 pathways of cellular respiration?
Cellular respiration is a collection of three unique metabolic pathways: glycolysis, the citric acid cycle, and the electron transport chain. Glycolysis is an anaerobic process, while the other two pathways are aerobic.
What are the three pathways of cellular respiration quizlet?
The cellular respiration process consists of three stages: glycolysis, the Krebs cycle, and the electron transport chain.
What are the 3 steps of cellular respiration and where do they occur?
1 Answer. BRIAN M. The three main stages of cellular respiration (aerobic) would include Glycolysis in the cytoplasm, the Kreb’s Cycle in the Mitochondrial Matrix and the Electron Transport Chain in the Mitochondrial Membrane.
Which metabolic pathway produces CO2?
In the case of aerobic respiration, during glycolysis, a glucose molecule is converted to two molecules of pyruvate and carbon dioxide. However, if oxygen is not present, fermentation of the pyruvate molecule will occur, which also results in the formation of carbon dioxide.
What are the 4 main stages of glycolysis?
The glycolytic pathway: steps, products, and regulation
- Reaction 1: glucose phosphorylation to glucose 6-phosphate.
- Reaction 2: isomerization of glucose 6-phosphate to fructose 6-phosphate.
- Reaction 3: phosphorylation of fructose 6-phosphate to fructose 1,6-bisphosphate.
What starts the process of glucose breakdown?
Glycolysis is the first step in the breakdown of glucose to extract energy for cellular metabolism. Glycolysis consists of an energy-requiring phase followed by an energy-releasing phase.
What are the three pathways involved in cellular respiration?
Cellular respiration is a collection of three unique metabolic pathways: glycolysis, the citric acid cycle, and the electron transport chain.
What are the three pathways in cellular respiration?
What are the four pathways involved in the breakdown of glucose?
What four pathways are involved in the breakdown of glucose to carbon dioxide and water -glycolysis -citric acid cycle -breakdown of pyruvate -oxidative phosphorylation
How is glucose broken down?
To provide energy to the body, glucose is oxidised. The following are the various ways in which glucose is broken down. In aerobic respiration, breakdown of pyruvate takes place in the presence of oxygen to give rise to 3 molecules of carbon dioxide and water.
What is the pathway of glycolysis?
Glycolysis is the name given to the sequence of reactions which couple partial breakdown of glucose to the three-carbon acid pyruvate, linking this process to synthesis of ATP by condensing Pi onto ADP. Pyruvate can then be consumed in other pathways.
How is glucose broken down into pyruvate and water?
Glycolysis During glycolysis, glucose is broken down in ten steps to two molecules of pyruvate, which then enters the mitochondria where it is oxidised through the tricarboxylic acid cycle to carbon dioxide and water. Glycolysis can be split into two phases, both of which occur in the cytosol.