Biology
Name the following:
(a) Openings on the stem through which transpiration occurs.
(b) The process by which the intact plant loses water in the form of droplets.
(c) An instrument used to find the rate of transpiration.
(d) A plant in which the stomata are sunken.
(e) The apparatus to record the rate of transpiration in a cut shoot.
(f) Any two parts of a leaf which allow transpiration.
(g) The structure in a leaf that allows guttation.
(h) Loss of water as droplets from the margins of certain leaves.
Transpiration
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Answer
(a) Lenticels.
(b) Guttation.
(c) Potometer.
(d) Nerium.
(e) Ganong's potometer.
(f) Stomata and Cuticle.
(g) Hydathodes.
(h) Guttation.
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Related Questions
Hydathodes are located on:
- At the petiole
- Upper surface of leaves
- Lower surface of leaves
- Margins of leaves
When guard cells are flaccid, the stoma must be:
- Open
- Neither open nor closed
- Closed
- None of these
Fill in the blanks:
(a) Transpiration is the loss of water as water …………… from the …………… parts of the plant.
(b) Closing of …………… and shedding of leaves reduce …………… .
(c) Transpiration helps in creating …………… force and in eliminating excess …………… .
Given below is an example of a certain structure and its special functional activity:
chloroplasts and photosynthesis
In a similar way, write the functional activity against each of the following:
(a) Hydathodes and ……………
(b) Leaf spines and ……………
(c) Lenticels and ……………
(d) Xylem and ……………