| 单词 | oxaloacetate |
| 例句 | The oxaloacetate is converted into another organic acid, such as malate. Fundamentals of Biology 2015-01-01T00:00:00Z Then, the first step of the cycle begins: This is a condensation step, combining the two-carbon acetyl group with a four- carbon oxaloacetate molecule to form a six-carbon molecule of citrate. Biology for AP Courses 2022-06-09T00:00:00Z Acetyl CoA enters the Krebs cycle by combining with a four-carbon molecule, oxaloacetate, to form the six-carbon molecule citrate, or citric acid, at the same time releasing the coenzyme A molecule. Anatomy and Physiology 2013-06-19T00:00:00Z The last step in the citric acid cycle regenerates oxaloacetate by oxidizing malate. Biology for AP Courses 2022-06-09T00:00:00Z In the cytoplasm, citrate is converted back into oxaloacetate and acetyl CoA. Anatomy and Physiology 2013-06-19T00:00:00Z Carbon dioxide diffuses into leaves in the night when the stomata are open and is fixed into oxaloacetate by PEP carboxylase which attaches the carbon dioxide to the three-carbon molecule PEP. Fundamentals of Biology 2015-01-01T00:00:00Z |
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