मराठी

Give Appropriate Biological Or Technical Terms for the Following : Movement of Molecules of a Substance from Their Higher Concentration to Lower Concentration When They Are in Direct Contact. - Biology

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प्रश्न

Give appropriate biological or technical terms for the following :

Movement of molecules of a substance from their higher concentration to lower concentration when they are in direct contact.

उत्तर

Diffusion

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2017-2018 (March) Set 1

व्हिडिओ ट्यूटोरियलVIEW ALL [1]

संबंधित प्रश्‍न

The highest water potential (capacity to move out higher concentrated solution) is that of ______.


The most appropriate characteristic of a semipermeable membrane is that


Explain how soaked seeds swell up and burst their seed coats. 


The diagram given below represents an experimental set-up to demonstrate a certain process. Study the same and answer the questions that follow:

 

  1. Name the process.
  2. Define the above-named process.
  3. What would you observe in the experimental set-up after an hour or so?
  4. What control experiment can be set up for comparison?
  5. Keeping in mind the root hair, cell and its surroundings, name the parts that correspond to
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    2. parchment paper
    3. water in the beaker
  6. Name any other material that can be used instead of parchment paper in the above experiment.
  7. Mention two advantages of the process for the plants.

Distinguish between the following:

Filtration and diffusion    


Distinguish between the following:

Plasmolysis and deplasmolysis


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Comment on the nature (tonicity) of the liquid surrounding the cell.


Give a diagrammatic representation of plasmolysis in a cell.


Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:

The plasma membrane permits the passage of all solutes and water.


Multiple Choice Question:

Marine fish when thrown under tap water bursts because of:


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