A step in respiration during which sugar is oxidized to pyruvic acid is called Multiple Choice…
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Question “A step in respiration during which sugar is oxidized to pyruvic acid is called Multiple Choice…”
Answer
Answer-
Respiration Simple sugars such as glucose are oxidized in the mitochondria of cells into CO2 and water, which then releases energy.
Two parts make up the respiration process within a cell:
1. GLYCOLYSIS – This is a process that takes place in the cytoplasm. This is when glucose becomes pyruvic.
The following reactions can be achieved by glycolysis:
1 Glucose molecule ————-> 2 pyruvate + ATP +NADP
(6 Carbon molecule) (3 carbon molecule)
2. KREB’S CYCLE- This happens within the mitochondria. Each step converts pyruvic acid into CO2 or H2O using energy currency (ATP and NADPH).
Phosphorylation – This step is also known as energy building, because it involves adding Phosphate organic molecule.
ADP +iP —->
Sugar cleavage – I This complex sugar is broken down into smaller units or parts. For example, sucrose is cleaved to glucose and fructose.
Fermentation – This is where microorganisms convert sugars into alcohol or water, and then release small amounts of energy.
Electron Transport- This refers to the transfer of electrons through a series of redox reactions in order to make ATP.
Answer : This is the step during respiration in which sugar is oxidized into pyruvic acids. Glycolysis
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