Per NCERT, how does OSMOSIS differ from ordinary DIFFUSION?
AOsmosis only happens in plants; diffusion only in animals
BThey are identical processes
CDiffusion is the net movement of particles from higher to lower concentration WITHOUT requiring a membrane; osmosis specifically refers to the diffusion of WATER through a SELECTIVELY PERMEABLE membrane
DDiffusion only happens in solids; osmosis only in gases
Answer & Solution
Correct answer: C. Diffusion is the net movement of particles from higher to lower concentration WITHOUT requiring a membrane; osmosis specifically refers to the diffusion of WATER through a SELECTIVELY PERMEABLE membrane
Per NCERT §2.2.1, diffusion is general (no membrane needed); osmosis is the special case of water diffusing across a selectively permeable membrane.
Related questions
Per NCERT, dietary CELLULOSE acts as which of the following in human nutrition?Per NCERT, the cell wall is PERMEABLE while the cell membrane is SELECTIVELY PERMEABLE. WhPer NCERT, why does a PLANT cell placed in a concentrated sugar solution NOT visibly shrinPer NCERT, the PLANT cell wall is primarily made of which substance?Per NCERT, which type of cells have a CELL WALL outside their cell membrane?Per NCERT, what is the FLUID MOSAIC model of the cell membrane?Per NCERT Activity 2.2, a potato piece placed in a 20% SALT or SUGAR SOLUTION (Beaker B) dPer NCERT Activity 2.2, a potato piece placed in PLAIN WATER (Beaker A) does which of the