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
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'.
Read the different components from (a) to (d) in the list given below and tell the correct order of the components with reference to their arrangement from outer side to inner side in a woody dicot stem. (a) Secondary cortex (b) Wood (c) Secondary phloem (d) Phellem
Cut a transverse section of young stem of a plant from your school garden and observe it under the microscope. How would you ascertain whether it is a monocot stem or a dicot stem? Give reasons.
What is a periderm? How does periderm formation take place in the dicot stems?
Hypodermis is _______ in sunflower stem and _________ in maize stem.
In a mature dicot stem. which has undergone secondary growth, the youngest layer of secondary xylem is situated
Read the following statements and select the correct option. Statement 1: Annual rings are distinct in plants growing in temperate regions Statement 2: In temperate regions, the climatic conditions are not uniform through the year
Which of the following statements is incorrect?
A conjoint and open vascular bundle will be observed in the transverse section of
Pith is not well developed in
Growth rings are formed due to the activity of