Which process do plants use to convert glucose into usable energy?

• A. Photosynthesis
• B. Cellular Respiration
• C. Glycolysis
• D. Fermentation

Answer: (B)

Verified step by step guidance

1. Understand that plants, like all organisms, need to convert glucose into usable energy to fuel their cellular activities.
2. Recognize that photosynthesis is the process by which plants produce glucose from sunlight, carbon dioxide, and water, but it is not the process that converts glucose into energy.
3. Identify that cellular respiration is the process used by plants to convert glucose into ATP, the energy currency of the cell. This process occurs in the mitochondria and involves several stages, including glycolysis, the Krebs cycle, and the electron transport chain.
4. Learn that glycolysis is the first step in cellular respiration, where glucose is broken down into pyruvate, yielding a small amount of ATP and NADH. This occurs in the cytoplasm.
5. Understand that fermentation is an alternative pathway to cellular respiration that occurs in the absence of oxygen, allowing cells to produce energy anaerobically, but it is less efficient than cellular respiration.