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12. (a) (i) Name the structures found in stems, equivalent to stomata in leaves, which are involved in gaseous exchange in plants - Leaving Cert Biology - Question 12 - 2014
Question 12
12. (a) (i) Name the structures found in stems, equivalent to stomata in leaves, which are involved in gaseous exchange in plants. (ii) Name two compounds that leav... show full transcript
Worked Solution & Example Answer:12. (a) (i) Name the structures found in stems, equivalent to stomata in leaves, which are involved in gaseous exchange in plants - Leaving Cert Biology - Question 12 - 2014
Step 1
Name the structures found in stems, equivalent to stomata in leaves, which are involved in gaseous exchange in plants.
Answer
The structures found in stems that are equivalent to stomata in leaves are called lenticels. Lenticels are small openings or pores in the stem that facilitate the exchange of gases such as oxygen and carbon dioxide.
Step 2
Name two compounds that leave the plant through the structures referred to in part (i).
Answer
Two compounds that leave the plant through lenticels are water vapor and carbon dioxide. Water vapor is lost during transpiration processes, while carbon dioxide is expelled as a byproduct of respiration.