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प्रश्न
Very short answer question.
Why do diurnal changes occur in osmotic potential of guard cells?
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उत्तर
1. According to Steward, diurnal changes occur in the osmotic potential of guard cells due to starch-sugar inter-conversion.
2. Whereas according to Levitt active transport of potassium ions into the guard cells and out of them causes diurnal changes in the osmotic potential of guard cells.
3. Endo-osmosis and exo-osmosis occur due to diurnal changes in osmotic potential of guard cells.
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संबंधित प्रश्न
What is dark reaction in photosynthesis?
Very short answer question.
Mention the shape of guard cells in Cyperus.
Describe the mechanism of opening and closing of stomata.
Explain the root pressure theory.
Give an example of plant having both kidney and dumb-bell shaped guard cells in stomata.
Sketch and label:
Types of guard cells
Write a short note on Structure of stomatal apparatus.
What are the limitations of root pressure theory?
Аccessory cells of stomata are reservoirs of ______.
Statement I - During night, guard cells become flaccid.
Statement II - During day time, guard cells become turgid due to endosmosis.
In light of above statements, choose the most appropriate answer from the option given below.
