Biology
Hydathodes are located on:
- At the petiole
- Upper surface of leaves
- Lower surface of leaves
- Margins of leaves
Transpiration
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Answer
Margins of leaves
Reason — Hydathodes are the tiny pores located on leaf margins. They are responsible for guttation.
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Related Questions
The upper layer of mesophyll in a leaf consists of elongated ground tissue called:
- Spongy parenchyma.
- Palisade cells
- Xylem cells
- Phloem cells
Transpiration is significant for all except:
- Cooling effect
- Suction pull
- Ascent of sap
- Translocation of food
When guard cells are flaccid, the stoma must be:
- Open
- Neither open nor closed
- Closed
- None of these
Assertion. Lenticels allow diffusion of gases for respiration.
Reason. Lenticels are located on the surface of older woody stems. They close during night time and open during the day for the process of transpiration.
- Both A and R are True
- Both A and R are False
- A is True and R is False.
- A is False and R is True.