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IMSO 2014 Science International — Theory II Question 4

IMSO Science · IMSO 2014 Science International — Theory II

Question 4

(4 points) Study the pictures below:

Question illustration

A. There are hundreds of stomata in the epidermis of a leaf. These stomata have a role in plant transpiration. Each stoma allows the carbon dioxide necessary for photosynthesis to enter, while water evaporates through each one in transpiration. Explain why most of the stomata are located in the lower epidermis!

B. Mention and explain the various conditions in a plant’s environment that affect the high rate of transpiration!