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1. Multiple Choice: Which of the following cellular processes can occur in the absence of oxygen? a) Glycolysis b) Krebs cycle c) Electron transport chain d) Fermentation Correct Answer: a) Glycolysis Rationale: Glycolysis is the metabolic pathway that converts glucose into pyruvate, releasing energy and producing ATP. It is an anaerobic process, meaning it does not require oxygen. 2. Fill-in-the-Blank: The __________ is the basic structural and functional unit of all living organisms. Correct Answer: Cell Rationale: The cell is the smallest unit that can carry out all the processes necessary for life, making it the fundamental building block of all organisms. 3. True/False: Mitocho
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