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Which of the following is most important factor in regulation of transpiration?
Options
(a) humidity
(b) light
(c) temperature
(d) all of these
Correct Answer:
all of these
Explanation:
A number of external and internal factors influence the rate of transpiration. Among the internal factors are root/shoot ratio, leaf area and leaf structure. External or environmental factors, include
(i) Relative humidity – If R.H. is low then rate of transpiration depends upon difference in vapour pressure or internal atmosphere of leaf and external environment (i.e., V.P gradient) and it is, therefore, that no transpiration occurs when stomata are fully open but relative humidity is 100%.
(ii) Light
Related Questions: - Given below is a simplified model of phosphorus cycling in a terrestrial ecosystem
- The basic unit of biological classification is
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Topics: Transport and Nutrition in Plants
(163)
Subject: Biology
(4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Given below is a simplified model of phosphorus cycling in a terrestrial ecosystem
- The basic unit of biological classification is
- Probiotics are
- Mitochondria is the site for
- Which of the following hormones stimulates the secretion of milk from female?
Topics: Transport and Nutrition in Plants (163)
Subject: Biology (4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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