Why are stomata typically found on the underside of a leaf?
AIt helps to catch more sunlight
BIt helps to keep insects away
CIt helps to strengthen the leaf
DIt helps to minimise water loss
Answer & Solution
Correct answer: D. It helps to minimise water loss
1. Stomata are small regulated openings through which carbon dioxide and oxygen are exchanged.
2. They are typically located on the underside of the leaf.
3. That position helps to minimise water loss.
4. Stomata also play a role in the regulation of gas exchange and water balance more generally.
_Source: OpenStax Biology (1st ed., CC BY 4.0), Ch 8 "Photosynthesis", section 8.1 Overview of Photosynthesis_
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