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प्रश्न
Answer the following question.
Define and or explain the term:
DPD
उत्तर
- Diffusion pressure of pure solvent (pure water) is always more than the diffusion pressure of the solvent in a solution. The difference in the diffusion pressures of pure solvent and the solvent in a solution is called Diffusion Pressure Deficit (DPD) or Suction Pressure (SP).
- The term DPD was coined by B.S. Meyer (1938). Nowadays, term water potential is used for DPD.
- In colloquial language, the term DPD is actually the thirst of a cell with which it absorbs water from the surroundings.
- The water around the cell wall has more diffusion pressure than cell sap. Due to this, water moves in the cell by diffusion.
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संबंधित प्रश्न
fill in the blanks with suitable functions: Xylem and __________.
Define the following:
Turgor pressure
Name the following:
The uptake of mineral ions against concentration gradient.
The diagram given below represents an experimental set – up to demonstrate a certain process. Study the same and answer the questions that follow:
Define the above named process.
The diagram given below represents an experimental set – up to demonstrate a certain process. Study the same and answer the questions that follow:
what would you observe in the experimental set-up after an hour or so?
Fill in the Blank
Water and mineral salts absorbed by root is known as ______.
Osmosis is a property of ______.
Answer the following question.
Define and or explain the term:
Diffusion
Distinguish between Diffusion and Osmosis.
Aquaporins (water channels) are involved in ______ type of transport.
