Question
Describe the mechanism of plasticity in plants with suitable examples.
✓
Answer
Plasticity refers to a phenomenon in which plants follow different pathways in response to environment or phases of life forming different kinds of structures, e.g., heterophylly, the phenomenon in plants by which more than two types of leaves occur on the same plant. The heterophylly is common in cotton, coriander larkspur and Ivy. The environmental plasticity is best seen in emergent hydrophytes, e.g., Ranunculus flabellaris (buttercup). In this, the submerged leaves are highly dissected, while emerged leaves are broad and lobed. 
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
What are taxonomical aids? Give the importance of herbaria and museums. How are Botanical gardens and Zoological parks useful in conserving biodiversity?
Match the following:
| a. | Operculum | i. | Ctenophora |
| b. | Para podia | ii. | Mollusca |
| c. | Scales | iii. | Porifera |
| d. | Comb plates | iv. | Reptilia |
| e. | Radula | v. | Annelida |
| f. | Hairs | vi. | Cyclostomata and Chondrichthyes |
| g. | Choanocytes | vii. | Mammalia |
| h. | Gill slits | viii. | Osteichthyes |
Six turns of Calvin cycle are required to generate one mole of glucose. Explain.
Describe the neccessary conditions for the occurrence of growth in detail.
What is cell membrane? Describe the fluid mosaic model by drawing a labeled diagram.
Is it correct to say that photosynthesis occurs only in leaves of a plant? Besides leaves, what are the other parts that may be capable of carrying out photosynthesis? Justify.
Describe any four classes of enzymes. Make distinction between prosthetic group and coenzymes.
- Study the given structure carefully and label the parts given as A, B, C, D and E.
- Give one major function of each of these.
What physiological circumstances lead to erythroblastosis foetalis?