Transport of water between cells and their environment
Transport of water between cells and their environment
Transport of water between cells and their environmentWhat will happen to an animal cell or a plant cell placed in a sugar or salt solution in water? Osmosis will take place and the movement of water molecules will depend on the concentration of the surrounding solution.1. In a hypotonic (dilute) solution, the cell will gain water by osmosis. This is because there is a higher water concentration outside the cell. The cell sap, or cytoplasm, has less water molecules than the outer solution. Water molecules pass in both directions across the cell membrane. But more water enters the cell than goes out of it. So the net movement of water is into the cell, due to which the cell increases in volume, or swell up. This is called endosmosis.2. When the cell is placed in an placed in an isotonic solution, which has exactly the same water concentration as the cell, there will be no net movement of water molecules across the cell membrane. Although water passes the cell membrane in both directions, the amount coming in is the same as the amount going out. So there is no net movement of water and the cell remains the same size.3. When the cell is immersed in a hypertonic (very concentrated) solution, water will diffuse out of the cell by osmosis. This is because there is a low concentration of water outside the cell. Although water molecules pass the cell membrane in both directions, more water goes out of the cell than enters it. As a result, the cell will shrink. This process is called exosmosis. If exosmosis continues in a plant cell, the cytoplasm would appear shrunken. This is called plasmolysis and cell is said to be plasmolysed.
Which of the following are correct : (a) In a hypotonic solution, the cell will gain water by osmosis because there is a higher water concentration outside the cell. (b) In a hypertonic solution, the cell will gain water by osmosis because there is a higher water concentration outside the cell. (c) When the cell is immersed in a hypertonic solution, water will diffuse out of the cell by osmosis. | |||
| Right Option : C | |||
| View Explanation | |||
Movement of solvent across the plasma membrane from the region of lower concentration of solute to the region of higher concentration of solute is known as ____________________ | |||
| Right Option : C | |||
| View Explanation | |||
Which of the following are correct : (a) The net movement of water is into the cell, due to which the cell increases in volume, or swell up. This is called endosmosis (b) In a hypotonic (dilute) solution, the cell will gain water by osmosis. (c) In a hypertonic (dilute) solution, the cell will gain water by osmosis. | |||
| Right Option : A | |||
| View Explanation | |||
Students / Parents Reviews [20]
It was good as the experience because as we had come here we had been improved in a such envirnment created here.Extra is taught which is beneficial for future.
Eshan Arora
8thWhen I have not joined Abhyas Academy, my skills of solving maths problems were not clear. But, after joining it, my skills have been developed and my concepts of science and SST are very well. I also came to know about other subjects such as vedic maths and reasoning.
Sharandeep Singh
7thBeing a parent, I saw my daughter improvement in her studies by seeing a good result in all day to day compititive exam TMO, NSO, IEO etc and as well as studies. I have got a fruitful result from my daughter.
Prisha Gupta
8thMy experience with Abhyas is very good. I have learnt many things here like vedic maths and reasoning also. Teachers here first take our doubts and then there are assignments to verify our weak points.
Shivam Rana
7thWe started with lot of hope that Abhyas will help in better understnding of complex topics of highers classes. we are not disappointed with the progress our child has made after attending Abhyas. Though need to mention that we expected a lot more. On a scale of 1-10, we would give may be 7.
Manya
8thAbhyas institute is one of the best coaching institute in the vicinity of Ambala cantt.The institute provides good and quality education to the students.The teachers are well experienced and are very helpful in solving the problems. The major advantages of the institute is extra classes for weak...
Shreya Shrivastava
8thAbhyas institute is one of the best coaching institute in the vicinity of Ambala Cantt area. The teachers of the institute are well experienced and very helpful in solving the problems of the students.The good thing of the institute is that it is providing extra classes for the students who are w...
Aman Kumar Shrivastava
10thAbhyas is an institute of high repute. Yogansh has taken admission last year. It creates abilities in child to prepare for competitive exams. Students are motivated by living prizes on basis of performance in Abhyas exams. He is satisfied with institute.
Yogansh Nyasi
7thAbhyas is a complete education Institute. Here extreme care is taken by teacher with the help of regular exam. Extra classes also conducted by the institute, if the student is weak.
Om Umang
10thAbout Abhyas metholodology the teachers are very nice and hardworking toward students.The Centre Head Mrs Anu Sethi is also a brilliant teacher.Abhyas has taught me how to overcome problems and has always taken my doubts and suppoeted me.
Shreya Shrivastava
8thMy experience was very good with Abhyas academy. I am studying here from 6th class and I am satisfied by its results in my life. I improved a lot here ahead of school syllabus.
Ayan Ghosh
8thOne of the best institutes to develope a child interest in studies.Provides SST and English knowledge also unlike other institutes. Teachers are co operative and friendly online tests andPPT develope practical knowledge also.
Aman Kumar Shrivastava
10thA marvelous experience with Abhyas. I am glad to share that my ward has achieved more than enough at the Ambala ABHYAS centre. Years have passed on and more and more he has gained. May the centre flourish and develop day by day by the grace of God.
Archit Segal
7thIn terms of methodology I want to say that institute provides expert guidence and results oriented monitering supplements by requsite study material along with regular tests which help the students to improve their education skills.The techniques of providing education helps the students to asses...
Aman Kumar Shrivastava
10thI have spent a wonderful time in Abhyas academy. It has made my reasoning more apt, English more stronger and Maths an interesting subject for me. It has given me a habbit of self studying
Yatharthi Sharma
10thAbhyas academy is great place to learn. I have learnt a lot here they have finished my fear of not answering.It has created a habit of self studying in me.The teachers here are very supportive and helpful. Earlier my maths and science was good but now it has been much better than before.
Barkha Arora
10thThe experience was nice. I studied here for three years and saw a tremendous change in myself. I started liking subjects like English and SST which earlier I ran from. Extra knowledge gave me confidence to overcome competitive exams. One of the best institutes for secondary education.
Aman Kumar Shrivastava
10thAbhyas Methodology is very good. It is based on according to student and each child manages accordingly to its properly. Methodology has improved the abilities of students to shine them in future.
Manish Kumar
10thIt was a good experience with Abhyas Academy. I even faced problems in starting but slowly and steadily overcomed. Especially reasoning classes helped me a lot.
Cheshta
10thMy experience with Abhyas academy is very good. I did not think that my every subject coming here will be so strong. The main thing is that the online tests had made me learn here more things.
