Which cells control the opening and closing of stomata?
Answer and explanation
Correct answer: Guard cells
The governing concept is regulation of stomatal movement in plants. Each stoma is surrounded by a pair of specialised guard cells. When their water content and turgidity change, the cells change shape, causing the pore to open or close. Therefore option A, guard cells, is correct. Red blood cells transport oxygen, neurons conduct nerve impulses, and bone cells form or maintain bone; none controls stomata.
Frequently asked questions
What is the correct answer to this question?
Guard cells
Why is this the correct answer?
The governing concept is regulation of stomatal movement in plants. Each stoma is surrounded by a pair of specialised guard cells. When their water content and turgidity change, the cells change shape, causing the pore to open or close. Therefore option A, guard cells, is correct. Red blood cells transport oxygen, neurons conduct nerve impulses, and bone cells form or maintain bone; none controls stomata.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: World of Living. Topic: Life Processes.
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