Praxis 5025 Practice Question
Plants require which of the following atmospheric gases to produce sugars through photosynthesis?
Correct Answer: C
Rationale: Photosynthesis is the process by which plants convert light energy into chemical energy, producing sugars. Carbon dioxide (C) is essential for this process, as it is one of the primary raw materials used to create glucose.
Nitrogen (A) is important for plant growth but is not directly involved in photosynthesis. Oxygen (B) is a byproduct of photosynthesis, not a reactant, and plants do not use it to produce sugars. Helium (D) is an inert gas that does not play any role in plant biology or photosynthesis. Thus, carbon dioxide is the vital gas required for sugar production in plants.
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