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प्रश्न
Define the following:
Diffusion
उत्तर
Diffusion - It is the movement of molecules or ions from a region of higher concentration to a region of lower concentration to equalize the concentration of the two regions.
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संबंधित प्रश्न
Give the equivalent terms for the following:
Pressure of the cell contents on the cell wall
Complete the following statements:
Hypotonic solution is one in which the solution kept outside the cell has lower solute concentration than ……………… the cell.
Distinguish between the following:
Filtration and diffusion
Name the following:
Condition of cell in which the cell contents are shrunken.
Explain why:
Bacteria and fungi do not grow in pickles, jams, jellies and squashes.
Two potato cubes each 1 cm3 in size, were placed separately in two containers (A and B), the container A having water and the other (B) containing concentrated sugar solution. After 24 hours when the cubes were examined, those placed in water were found to be firm and had increased slightly in size and those placed in concentrated sugar solution were found to be soft and somewhat decreased in size. Use the above information to answer the questions that follow:
Name and define the physical process being investigated in this experiment.
Give Reasons for the following.
Salt and sugar are used in preserving food.
Give Technical Term for the following.
The pressure which is responsible for the movement of water molecules across the cortical cells of the root.
Fill in the Blank
Raisin swells up when kept in a __________ solution.
Explain the Term: Osmosis
