MCQ
Sucker which is subaerial stem modification for vegetative propagation is seen in
- APistia
- BJussiaea
- ✓Chrysanthemum
- DHydrilla
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$(a)$ secretion of secondary metabolities and their deposition in the lumen of vessels.
$(b)$ deposition of organic compounds like tannins and resins in the central layers of stem.
$(c)$ deposition of suberin and aromatic substances in the outer layer of stem.
$(d)$ deposition of tannins, gum, resin and aromatic substances in the peripheral layers of stem.
$(e)$ presence of parenchyma cells, functionally active xylem elements and essential oils.
Choose the correct answer from the options given below:
| 1. | Cytoskeleton | A. | Hair-like outgrowth |
| 2. | Flagella | B. | Proximal region of centriole |
| 3. | Hub | C. | Bristle-like structures |
| 4. | Fimbriae | D. | Filamentous protein structure |