Question

Select the correct option:

Given are a few peculiar parts/structures found in plants Cucurbita stem, potato tuber, walnut shell, jute fibres.
Identify the tissue responsible for the distinguishing feature in each part respectively and select the correct option

• A. Collenchymatous hypodermis, Parenchyma, Sclerenchyma, Phloem
• B. Collenchymatous hypodermis, Sclerenchyma,Parenchyma, Phloem
• C. Parenchymatous hypodermis, Parenchyma, Sclerenchyma, Xylem
• D. Collenchymatous hypodermis, Parenchyma, Sclerenchyma, Xylem

Answer 1

The correct option is A Collenchymatous hypodermis, Parenchyma, Sclerenchyma, Phloem

1. Cucurbita stem: Collenchyma is the tissue of primary body. The cell walls show localized thickenings. It occurs chiefly in the hypodermis of dicot stems( e.g. Cucurbita, Helianthus).

2. Potato tuber: Parenchyma is cell and tissue type in which the cells have only thin primary walls. The cotyledon of many leguminous plants contains protein and starch in their parenchyma cells. Protein and starch are present in the parenchyma of potato tuber.

3. Walnut shell: Sclerenchyma consists of thick-walled dead cells. It usually occurs in hard parts of plant bodye.g. hard endocarp of Walnut, almond and coconut).

4. Jute fibres: Phloem fibres are also called bast fibres and most occur in secondary phloem. The fibres of primary phloem have both cellulose and lignified thickenings.

So, the correct answer is 'Collenchymatous hypodermis, Parenchyma, Sclerenchyma, Phloem'.