2. Why do plants need stomata? alowing to dlose and open, to protect the plante

Question

2. Why do plants need stomata? alowing to dlose and open, to protect the plante frem loss) 3. What is the function of the leaf epidermal cells in terrestrial plants? 4 What does the parenchyma of a leaf do? Achiye n Photosy nthasis and stems 5. Name a few plant organelles and structures that are not found in animals. List their functions. on Ma 6. What are the differences between monocot and dicot leaves? ren ween the two as you can see whereas monocots have one cotyfledon (vein) dicots hav too 2. veins are parallel Inwonocot Veins er nach Diet lea onocof long nearow leat. 3. Also Monocot let. Aower flower thvee but In Diot leutParts Flowers are aparts ln mulhph h wiul hiles of three ot ive

Explanation / Answer

3. Leaf epidermal cells protect terrestrial plants as it covers whole plant body including leaves, stems, fruits etc. It is actually an outer protective layer. It also helps in gas exchange, prevent water loss etc.

4. Plant structures not found in animals are cell wall, chlorophyll and large vacuoles.

The cell wall protects plant cell and made up of cellulose to provide it rigidity to stand upright but animals don't need cell wall. It gives shape to plant cells.

Chlorophyll is a green coloured pigment in plants just to help them in preparing their food by photosynthesis.

Animals don't need to prepare their food from sunlight so don't has chloroplast but mitochondria to generate energy from food oxidation.

Large vacuoles in plants hold lot of water and food.

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