MCQ
Plants do not store carbohydrates as glucose because it.
- ✓Dissolves in water, thereby altering the osmotic bala.
- BAttracts insects herbivores.
- CIs an unstable molecule.
- DWould replace ribose in $\text{DNA}$ synthesis.
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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:
$(I)$. It consists of grey matter
$(II)$. It shows prominent folds
$(III)$. It consists of white matter
$(IV)$. It contains motor areas, sensory areas and association areas Codes
| Column $I$ | Column $II$ |
| ($a$) Fruit ripener | ($i$) Abscisic acid |
| ($b$) Herbicide | ($ii$) Polysaccharide |
| ($c$) Bolting agent | ($iii$) $GA _{3}$ |
| ($d$) Stress hormone | ($iv$) Ethephon |
Select the correct option from following