Kreb's cycle happens in ? *
Answers
Explanation:
The Krebs cycle occurs in the mitochondrion of a cell.
Answer:
The Krebs cycle happens only within the mitochondrial matrix. Pyruvate is formed in the cytosol of the cell, then imported into the mitochondria. Here, it is converted to acetyl CoA and imported into the mitochondrial matrix.
Explanation:
The Krebs cycle starts with pyruvic acid from glycolysis. Each small circle in the diagram represents one carbon atom. For example, citric acid is a six carbon molecule, and OAA (oxaloacetate) is a four carbon molecule. The product of this reaction is a two-carbon molecule called acetyl-CoA.
Plants are no exception. Plants respire in the normal way using glycolysis, Krebs cycle, oxidative phosphorylation etc. Often, the respiration is masked by the fact that photosynthesis produces oxygen faster than respiration takes it up and photosynthesis uses carbon dioxide faster than respiration produces it.
Some common C3 plant species are spinach, peanuts, cotton, wheat, rice, barley and most trees and grasses. The image above shows the C3 carbon fixation pathway also known as the Calvin Cycle, used my many types of plants.