Question

A student was asked to put few raisins in water in a Petri dish "A" and a few concentrated sugar solution in another Petri dish "B"
1-What is this phenomenon​

Answer 1

Answer:

osmosis

Explanation:

Osmosis means the movement of material from less concentrated solution to higher concentrated solution.

Answer 2

Petri dish A

1. When raisins are placed in water (a hypotonic solution), they absorb water by a process called osmosis and swell up. Osmosis is the net movement of solvent molecules from a region of their higher concentration to a region of their lower concentration through a semipermeable membrane.

Petri dish B

2. A raisin, when put in a sugar solution (or any other concentrated solution), loses water by exosmosis and consequently shrinks. This happens due to osmosis. Osmosis is the passage of water from a region of high water concentration to a region of lower water concentration.