मराठी
महाराष्ट्र राज्य शिक्षण मंडळएचएससी विज्ञान (सामान्य) इयत्ता १२ वी

Explain the term: Diffusion

Advertisements
Advertisements

प्रश्न

Explain the term:

Diffusion

स्पष्ट करा
Advertisements

उत्तर

  1. Diffusion means to disperse.
  2. Diffusion can be defined as the movement of ions/ atoms/ molecules of a substance from the region of their higher concentration to the region of their lower concentration till equilibrium is reached.
  3. The movement is due to the kinetic energy of the molecules.
  4. Water passes into the cell by diffusion through a freely permeable cell wall.
shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 6: Plant Water Relation - Exercises [पृष्ठ १३३]

APPEARS IN

बालभारती Biology [English] Standard 12 Maharashtra State Board
पाठ 6 Plant Water Relation
Exercises | Q 3.09 (ii) (b) | पृष्ठ १३३

संबंधित प्रश्‍न

Give the appropriate biological or technical term for the following.

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


When placed in a more concentrated solution, the cell contents will ______.


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


What is the difference between endosmosis and exosmosis?

What is the utility of plasmolysis?

Choose the correct answer:

Plasmolysis will occur when the cell is placed in a __________


What do you mean by transpiration pull ?


Define the cohesive force.


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


(i) Name the process.
(ii) Define the above named process.
(iii) What would you observe in the experimental setup after an hour or so?
(iv) What control experiment can be set up for the above experiment?
(v) Keeping in mind the root hair cell and its surrounding name the part that corresponds to (1) Concentrated sugar solution, (2) Parchment paper, (3) Water in the beaker.
(vi) Name any other substance that can be used instead of parchment paper in the above experiment.
(vii) Mention two advantages of this process to the plant.


Fill in the Blank
When there is no movement of water in the cell from the outside medium, the medium is considered to be ______ to cell sap.


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

Osmosis is defined as the movement of water from a concentrated sugar solution to a dilute sugar solution.


Fill in the Blanks
Osmosis in the diffusion of _______ molecules from the region of higher _____  potential to that of lower potential across a S.P.M.


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

Cells that have lost their water content are said to be deplasmolysed.


Multiple Choice Question:

In the process of osmosis in a cell:


Multiple Choice Question:

When a plant wilts, the sequence of events will be as follows:


Name the two organelles in a plant cell that contain their own genetic material and ribosomes.


When a cell in solution shrinks and loses its shape, then the solution is ______.


Define the following term:

Tonicity


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×