| ⇦ | 
| ⇨ |
A metal ion involved in stomatal regulation is
Options
(a) iron
(b) potassium
(c) zinc
(d) magnesium
Correct Answer:
potassium
Explanation:
Stomata are small pores in plant epidermis,present in large numbers,particularly in leaves,through which gaseous exchange occurs.Each stomata has 2 bean or kidney shaped cells called guard cells surrounded by a few specialised epidermal cells called subsidiary cells.The opening and closing of stomatal aperture is regulated by turgidity of guard cells which is brought about by entry/exit of K⁺ ions.
Related Questions: - Metagenesis refers to:
- Wings of birds and forelimbs of horse are ___ organs
- Largest muscle of the body is
- Upon fertilization while ovule develops into seed, which structure develops
- Whorled, simple leaves with reticulate venation are present in
Topics: Transport and Nutrition in Plants
(163)
Subject: Biology
(4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Metagenesis refers to:
- Wings of birds and forelimbs of horse are ___ organs
- Largest muscle of the body is
- Upon fertilization while ovule develops into seed, which structure develops
- Whorled, simple leaves with reticulate venation are present in
Topics: Transport and Nutrition in Plants (163)
Subject: Biology (4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
18000+ students are using NEETLab to improve their score. What about you?
Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.
Share this page with your friends
Leave a Reply