There are how many stomata per square cm of leaf surface in Tobacco plants?
Correct answer: B. 12000
- A. 10000
- B. 12000
- C. 15000
- D. 20000
Explanation
12,000 stomata per square cm are present on the leaf surface in Tobacco plants.
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About Respiration
The human respiratory system includes the air passages, lungs, alveoli and breathing muscles, while gaseous exchange explains how oxygen enters blood and carbon dioxide leaves it by diffusion. The effects of smoking include damage to cilia and alveoli, reduced gas exchange, chronic bronchitis, emphysema and increased risk of lung cancer.
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