Question

biogeochemical cycles video assignment
how does carbon dioxide enter into the plant?
○ carbon dioxide enters through the stomata
○ plants make their own carbon dioxide when they complete photosynthesis
○ the plants uses its lungs to inhale the carbon dioxide

Explanation:

• Option 1: Stomata are small openings on plant leaves (and other parts) that allow gas exchange, including CO₂ entry for photosynthesis.
• Option 2: Photosynthesis uses CO₂, and plants produce O₂ and glucose, not CO₂ during it (respiration produces CO₂).
• Option 3: Plants don’t have lungs; lungs are for animals.

Answer:

A. Carbon dioxide enters through the stomata