The axillary buds arise
- AEndogenously from the pericycle
- BExogenously from the tissues of the main growing point
- CEndogenously from the cambial tissues
- DExogenously from the innermost cortex
Similar Questions
Match the following
Column $-I$
Column $-II$
$(a)$ Dicot leaf
$(p)$ Polyarch
$(b)$ Dicot stem
$(q)$ Pallisade and spongy mesophy $II$
$(c)$ Monocot root
$(r)$ Endarch
$(d)$ Monocot leaf
$(s)$ Bulli form Cell
Match the following
| Column $-I$ | Column $-II$ |
| $(a)$ Dicot leaf | $(p)$ Polyarch |
| $(b)$ Dicot stem | $(q)$ Pallisade and spongy mesophy $II$ |
| $(c)$ Monocot root | $(r)$ Endarch |
| $(d)$ Monocot leaf | $(s)$ Bulli form Cell |
In old trees the greater part of secondary xylem is dark brown and resistant to insect attack due to:
$(a)$ 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:
In old trees the greater part of secondary xylem is dark brown and resistant to insect attack due to:
$(a)$ 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:
- [NEET 2022]
$(i)$ The ...$a$... help in maintaining the pressure gradient in the sieve tubes
$(ii)$ Stomata regulate the process of ....$b$..... and gaseous exchange
$(i)$ The ...$a$... help in maintaining the pressure gradient in the sieve tubes
$(ii)$ Stomata regulate the process of ....$b$..... and gaseous exchange
Abundant pith is characteristic of
Abundant pith is characteristic of
What part of the plant would show the following :
$(a)$ Radial vascular bundle
$(b)$ Polyarch xylem
$(c)$ Well developed pith
What part of the plant would show the following :
$(a)$ Radial vascular bundle
$(b)$ Polyarch xylem
$(c)$ Well developed pith