Biology
NAD is a coenzyme and an electron carrier, it acts as an electron acceptor in glycolysis and Krebs cycle through dehydrogenation processes and is then reduced to NADH. WHen it is reduced to NADH, it is utilized as an electron donor during oxidative phosphorylation. Electrons are transferred from NADH and FADH2 to oxygen by the electron transport chain via a series of redox reactions. The electrons are gradually passed down to lower and lower energy levels. The energy is used to generate a proton gradient across the inner mitochondrial membrane. This stores potential energy that can be used to phosphorylate ADP to ATP during chemiosmosis.
- Krebs Cycle Broken Down
The Krebs cycle, also known as the Citric Acid cycle, is a very important process in cellular respiration. Without this portion, respiration would not be possible. This is because the Krebs cycle uses the pyruvate molecules from glycolysis to produce...
- Q: Explain The Small Yield Of Atp From Anaerobic Respiration
In the absence of oxygen, the conversion of pyruvate to acetyl CoA, the Krebs cycle, and oxidative phosphorylation are prevented as oxygen is not available as the final electron acceptor. Hence, only glycolysis can occur, generating 2 molecules of ATP...
- Q: Outline The Main Features Of A Krebs Cycle
The Krebs cycle occurs in the matrix of the mitochondrion. It occurs only in aerobic conditions, that is, only when oxygen is present. Its main function is to oxidise acetyl CoA generated from glycolysis. In the Krebs cycle, acetyl CoA and oxaloacetate...
- #85 Energy And Respiration - Syllabus 2016
12.1 Energy12.2 Respiration Energy is a fundamental concept in biology. All living things require a source of cellular energy to drive their various activities. ATP is the universal energy currency as its molecules are small,...
- Photosynthesis And Cellular Respiration
Photosynthesis is the processes of converting carbon dioxide and water, using light energy, into glucose and oxygen. Plants, algae, and certain prokaryotes capture about 1% of the energy in the sunlight that reaches Earth and convert it to chemical energy...
Biology
Q: Describe the role of NAD in aerobic respiration
NAD is a coenzyme and an electron carrier, it acts as an electron acceptor in glycolysis and Krebs cycle through dehydrogenation processes and is then reduced to NADH. WHen it is reduced to NADH, it is utilized as an electron donor during oxidative phosphorylation. Electrons are transferred from NADH and FADH2 to oxygen by the electron transport chain via a series of redox reactions. The electrons are gradually passed down to lower and lower energy levels. The energy is used to generate a proton gradient across the inner mitochondrial membrane. This stores potential energy that can be used to phosphorylate ADP to ATP during chemiosmosis.
- Krebs Cycle Broken Down
The Krebs cycle, also known as the Citric Acid cycle, is a very important process in cellular respiration. Without this portion, respiration would not be possible. This is because the Krebs cycle uses the pyruvate molecules from glycolysis to produce...
- Q: Explain The Small Yield Of Atp From Anaerobic Respiration
In the absence of oxygen, the conversion of pyruvate to acetyl CoA, the Krebs cycle, and oxidative phosphorylation are prevented as oxygen is not available as the final electron acceptor. Hence, only glycolysis can occur, generating 2 molecules of ATP...
- Q: Outline The Main Features Of A Krebs Cycle
The Krebs cycle occurs in the matrix of the mitochondrion. It occurs only in aerobic conditions, that is, only when oxygen is present. Its main function is to oxidise acetyl CoA generated from glycolysis. In the Krebs cycle, acetyl CoA and oxaloacetate...
- #85 Energy And Respiration - Syllabus 2016
12.1 Energy12.2 Respiration Energy is a fundamental concept in biology. All living things require a source of cellular energy to drive their various activities. ATP is the universal energy currency as its molecules are small,...
- Photosynthesis And Cellular Respiration
Photosynthesis is the processes of converting carbon dioxide and water, using light energy, into glucose and oxygen. Plants, algae, and certain prokaryotes capture about 1% of the energy in the sunlight that reaches Earth and convert it to chemical energy...