TREE PHYSIOLOGY
RESPIRATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which process in eukaryotic cells will proceed normally whether oxygen (O2) is present or absent?
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electron transport
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glycolysis
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Krebs Cycle
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Electron transport chain
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Explanation:
Detailed explanation-1: -Answer and Explanation: The process in eukaryotic cells that will proceed normally whether oxygen is present or absent is b. glycolysis. Processes such as chemiosmosis, oxidative phosphorylation, the citric acid cycle, and electron transport will only occur when there is oxygen present.
Detailed explanation-2: -When oxygen is not present, pyruvate will undergo a process called fermentation. In the process of fermentation the NADH + H+ from glycolysis will be recycled back to NAD+ so that glycolysis can continue.
Detailed explanation-3: -The correct answer is (b) glycolysis. The first step of cellular respiration, glycolysis, can happen with or without oxygen.
There is 1 question to complete.