English

Give reason for the following: Potato cubes, when placed in water, become firm and increase in size.

Advertisements
Advertisements

Question

Give reason for the following:

Potato cubes, when placed in water, become firm and increase in size.

Short/Brief Note
Advertisements

Solution

Potato cubes contain an excess of salts and sugars as compared to the water in which they are placed. Hence, due to endosmosis, water from the surrounding area enters the potato cubes, making them firm and increasing their size.

shaalaa.com
  Is there an error in this question or solution?
Chapter 4: Absorption by roots: The Processes Involved - Review Questions [Page 53]

APPEARS IN

Selina Concise Biology [English] Class 10 ICSE
Chapter 4 Absorption by roots: The Processes Involved
Review Questions | Q D. 3. (e) | Page 53

Video TutorialsVIEW ALL [1]

RELATED QUESTIONS

A plant cell placed in a certain solution got plasmolysed. What was the kind of solution?


Movement of molecules of a substance from the region of their higher concentration to the region of their lower concentration without the involvement a separating membrane, is called


Differentiate between the following: 

Plasmolysis and deplasmolysis 


Two potato cubes each 1 cm3 in size, were placed separately in two containers (A&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 had somewhat decreased in size. Use the above information to answer the questions that follow:

Account for the firmness and increase in the size of the potato cubes placed in water.


Name the following:

The process by which raisins swell up when placed in a beaker of water.


What do you mean by transpiration pull ?


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
The pressure which develops in the cortical cells of root which force a part of the water upward ____________.


Multiple Choice Question:

In the process of osmosis in a cell:


DPD of a cell can be expressed as ______ 


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×