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The Krebs cycle is a cycle that is after glycolysis which allows the cell to get more ATP and have more ATP efficiency than that of glycolysis itself or fermentation and glycolysis. Infact, it makes the ATP effeciency about 20 times of glycolysis itself!
Here is the Krebs cycle:
Step 1: The acetyl CoA (a two carbon) joins with oxaloacetic acid (a four carbon). The CoA (Coenzyme A) is returned back to the mitochondira. The result is a six carbon called citric acid.
Step 2: The citric acid gives off carbon dioxide and gives a hydrogen ion (H+) to NAD+ resulting in NADH. Since the citric acid gave off a carbon in the form of CO2, (carbon dioxide) it is now a 5-carbon molecule.
Step 3: The 5-carbon molecule then gives off CO2 once again, gives a hydrogen ion(H+) to NAD+ resulting in NADH, and in this process, phosphate joins with ADP to create ATP. The resulting molecule is a 4-carbon.
Step 4: The 4-carbon molecule gives a hydrogen ion (H+) to FAD (similar to NAD), which results to FADH2.
Step 5: The 4-carbon molecule once again gives off H+ to NAD resulting into NADH. The 4-carbon molecule is then known as oxaloacetic acid, and the cycle begins again.
Remember:glycolysis produces 2 pyruvic acid molecules, which produces 2 acetyl CoA molecules (and 2 NADH), which means that for every molecule of glucose, the Krebs cycle happens twice.
The resulting amounts of NADH and FADH2 go through the electron transport chain and the enzyme ATP synthase to produce a waste of water, ATP molecules, and a restoration of the NADH to NAD+ and the FADH2 to FAD+ so that they can be used again in the Krebs cycle.
What else can I help you with?
What year did Hans Krebs discover the Krebs cycle?
Hans Krebs discovered the Krebs cycle, also known as the citric acid cycle, in 1937.
Which compounds involved in the urea cycle are linked to the Krebs cycle?
Fumarate and aspartate are the compounds that are linked between the urea cycle and the Krebs cycle. Fumarate from the Krebs cycle can be converted to arginine in the urea cycle, while aspartate from the urea cycle can be converted to oxaloacetate in the Krebs cycle.
Why pyruvic acid do not move as it is in the Krebs cycle?
why pyruvic acid do not move as it is in krebs cycle
Where in the cell do the Krebs cycle?
The Krebs, or citric acid cycle, occurs in the mitochondrial matrix.
In the Krebs cycle acetate combines with what 4-carbon compound?
oxaloacetic acid
What year did Hans Krebs discover the Krebs cycle?
Hans Krebs discovered the Krebs cycle, also known as the citric acid cycle, in 1937.
In the presence of oxygen glycolysis is followed by?
Krebs cycle.
Which compounds involved in the urea cycle are linked to the Krebs cycle?
Fumarate and aspartate are the compounds that are linked between the urea cycle and the Krebs cycle. Fumarate from the Krebs cycle can be converted to arginine in the urea cycle, while aspartate from the urea cycle can be converted to oxaloacetate in the Krebs cycle.
Prefix of Krebs cycle acid?
Krebs
What occurs in the Krebs cycle?
the Krebs cycle, aka citric acid cycle, occurs in the mitochondrial matrix
Why pyruvic acid do not move as it is in the Krebs cycle?
why pyruvic acid do not move as it is in krebs cycle
Where in the cell do the Krebs cycle?
The Krebs, or citric acid cycle, occurs in the mitochondrial matrix.
Is the Krebs cycle anaerobic?
No, the Krebs cycle is aerobic, meaning it requires oxygen to function.
What is a sentence using the word the Krebs cycle?
The Krebs cycle is also called the citric acid cycle (CAC).
In the Krebs cycle acetate combines with what 4-carbon compound?
oxaloacetic acid
Is the Krebs cycle aerobic or anaerobic?
The Krebs cycle is aerobic, meaning it requires oxygen to function.
The Krebs cycle occurs in which region of the mitochondrion?
The Krebs cycle occurs in the matrix of the mitochondrion.
