What is osmosis?
Solution and Explanation
The movement of solvent from a region of its high concentration to a region of its low concentration through a semipermeable membrane is called osmosis.
During osmosis, the water molecules (solvent) are free to cross the plasma membrane in both the directions.
Top Questions on What is a Cell Made Up of? What is the Structural Organisation of a Cell?
- Make a comparison and write down ways in which plant cells are different from animal cells.
- CBSE Class IX
- Science
- What is a Cell Made Up of? What is the Structural Organisation of a Cell?
- How is a prokaryotic cell different from a eukaryotic cell?
- CBSE Class IX
- Science
- What is a Cell Made Up of? What is the Structural Organisation of a Cell?
- What would happen if the plasma membrane ruptures or breaks down?
- CBSE Class IX
- Science
- What is a Cell Made Up of? What is the Structural Organisation of a Cell?
- What would happen to the life of a cell if there was no Golgi apparatus?
- CBSE Class IX
- Science
- What is a Cell Made Up of? What is the Structural Organisation of a Cell?
- Which organelle is known as the powerhouse of the cell? Why?
- CBSE Class IX
- Science
- What is a Cell Made Up of? What is the Structural Organisation of a Cell?
Questions Asked in CBSE Class IX exam
(i) The kind of person the doctor is (money, possessions)
(ii) The kind of person he wants to be (appearance, ambition)- CBSE Class IX
- The snake and the mirror
- Lushkoff is earning thirty five roubles a month. How is he obliged to Sergei for this?
- CBSE Class IX
- The beggar
ABCD is a quadrilateral in which AD = BC and ∠ DAB = ∠ CBA (see Fig. 7.17). Prove that
(i) ∆ ABD ≅ ∆ BAC
(ii) BD = AC
(iii) ∠ ABD = ∠ BAC.
- CBSE Class IX
- Congruence of Triangles
- Why does the author say that Iswaran seemed to more than make up for the absence of a TV in Mahendra’s living quarters?
- CBSE Class IX
- Iswaran the storyteller
- Here is your diary entry when you visited Agra. Read the points and try to write a travelogue describing your visit to Agra and the Taj Mahal. You may add more details.
January 2003 — rise before dawn — take the Shatabdi Express at 6.15 a.m. from Delhi — meet a newly-married couple on train — talk about Himachal Pradesh — get off the train — enter the once-grand city, Agra — twisted alleys — traffic dense — rickshaws, cars, people — vendors selling religious artifacts, plastic toys, spices and sweets — go to the Taj Mahal — constructed entirely of white marble — magical quality — colour changes with varying of light and shadow — marble with gemstones inside — reflection of the Taj Mahal in the pond — school-children, tourists — tourist guides following people.- CBSE Class IX
- Kathmandu
Concepts Used:
Osmosis
Osmosis is a passive process and happens without any expenditure of energy. It involves the movement of molecules from a region of higher concentration to lower concentration until the concentrations become equal on either side of the membrane.
There are three different types of solutions:
- Isotonic Solution is one that has the same concentration of solutes both inside and outside the cell.
- Hypertonic solution is one that has a higher solute concentration outside the cell than inside.
- Hypotonic solution is one that has a higher solute concentration inside the cell than outside.