Question: Which structure in the plant regulates the opening and closing of stomata?
Options:
Guard cells
Xylem vessels
Phloem fibers
Mesophyll cells
Correct Answer: Guard cells
Solution:
Guard cells surround the stomata and control their opening and closing, regulating gas exchange and transpiration.
Which structure in the plant regulates the opening and closing of stomata?
Practice Questions
Q1
Which structure in the plant regulates the opening and closing of stomata?
Guard cells
Xylem vessels
Phloem fibers
Mesophyll cells
Questions & Step-by-Step Solutions
Which structure in the plant regulates the opening and closing of stomata?
Step 1: Understand what stomata are. Stomata are tiny openings on the surface of leaves.
Step 2: Learn about guard cells. Guard cells are special cells that surround each stoma.
Step 3: Know the function of guard cells. Guard cells control whether the stomata are open or closed.
Step 4: Realize the importance of this function. By opening and closing, guard cells help regulate gas exchange (like oxygen and carbon dioxide) and water loss (transpiration) in the plant.
No concepts available.
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