Question

it of class 10 biology​

Answer 1

Answers:-

1.  The two functions of lower epidermis are:-

• lower epidermis contain specialized cells called as Guard cells (Which control the opening and closing of stomata), which help in exchange of gases.
• Guard cells also contain chloroplast which help in photosynthesis.

2. The chloroplast are present in Palisade mesophyll (Palisade cells).

3. Function of xylem:

• It helps in the transportation of water and minerals from roots to the leaf.

  Functions of phloem:

• It translocates/transports food (or) Organic molecules from source (leaf) to sink (Any Plant organ)

4. Structural difference b/w upper and lower epidermis:-

• Upper epidermis is multi layered where as lower epidermis is single layer thick.

   Functional difference b/w upper and lower epidermis:-

• Upper epidermis has no chloroplast where as lower epidermis has some chloroplast which helps in photosynthesis.

Answer 2

Answer:

1.  The two functions of lower epidermis are:-

lower epidermis contains specialized cells called as Guard cells (Which control the opening and closing of stomata), which help in exchange of gases.

Guard cells also contain chloroplast which help in photosynthesis.

2. The chloroplast are present in Palisade mesophyll (Palisade cells).

3. Function of xylem:

It helps in the transportation of water and minerals from roots to the leaf.

 Functions of phloem:

It translocates/transports food (or) Organic molecules from source (leaf) to sink (Any Plant organ)

4. Structural difference b/w upper and lower epidermis:-

Upper epidermis is multi layered where as lower epidermis is single layer thick.

  Functional difference b/w upper and lower epidermis:-

Upper epidermis has no chloroplast where as lower epidermis has some chloroplast which helps in photosynthesis.

Explanation: