Question

nswer the following
1. What is diffusion? Give three examples of the process of diffusion in plants.
2. What is osmosis? How does it differ from diffusion?
3. What is active transport?
4. Mention the types of cells found in xylem and phloem.​

Answer 1

1.The movement of object from higher concentration to lower concentration is called diffusion .

Ex:- the root of tree observe the water from ground .

2.The movement of water molecules from higher concentration to lower concentration through selectively permeable membrane called osmosis .

3. Movement of solute molecules from their lower concentration to their higher concentration using some biological energy( eg: ATP) is called Active Transport.

4. There are four cells present in xylem:

i) xylem trachieds

ii) xylem vessels

iii) xylem parenchyma

iv) xylem fibres

There are four cells present in phloem:

i) phloem parenchyma

ii) phloem fibres

iii) companion cells

iv) sieve tubes

Hope it helps ✌️ ✌️

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