With respect to the stomata, what should be written in place of 'A'?
Show answer & explanation
Correct answer: A
Explanation
Correct Answer:
Option 1: Stomatal pore
Explanation:
The given diagram illustrates the structure of a leaf's stomata. It consists of two guard cells, with a central opening situated between them.
The part indicated by 'A' in the diagram is the central open space, which is known as the stomatal pore.
This stomatal pore performs extremely vital functions in plants—
Exchange of gases (Intake of CO₂, release of O₂)
Transpiration
When the guard cells absorb water and swell, this pore opens; conversely, when water levels decrease, it closes.
Additional Facts:
Option 2: Mitochondria are located inside the cell.
Option 3: The nucleus is a component of the cell.
Option 4: The lamina is the flat part of the leaf.
Potential Questions for Upcoming Exams:
Question: Where are stomata found?
Answer: On the surface of leaves.
Question: What is transpiration?
Answer: The release of water in the form of vapor.
Question: What is the function of guard cells?
Answer: To regulate the opening and closing of the stomata.
Question: Where does the exchange of gases occur in plants?
Answer: Through the stomatal pore.