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1.
In monocot stem, which of the following is absent?
2.
Consider the following statements and choose the correct option.
I.The thread like cytoplasmic strands, running from one cell to other is known as plasmodesmata.
II.Xylem and phloem constitute the vascular bundle of the stem.
III.The first formed xylem elements are described as metaxylem.
IV.Radial vascular bundles are mainly found in the leaves.
I.The thread like cytoplasmic strands, running from one cell to other is known as plasmodesmata.
II.Xylem and phloem constitute the vascular bundle of the stem.
III.The first formed xylem elements are described as metaxylem.
IV.Radial vascular bundles are mainly found in the leaves.
3.
In the leaf, vascular bundles are found in the
4.
The annular and spirally thickened conducting elements generally develop in the protoxylem when the root or stem is
5.
Damaged sieve tubes are sealed by deposition of
6.
Arrange the following in the order of their location from periphery to centre in the entire dicotyledonous plant body.
I. Fusiformcells
II. Trichoblasts
III. Collocytes
IV.Tyloses
I. Fusiformcells
II. Trichoblasts
III. Collocytes
IV.Tyloses
7.
Cork tissue arises from
8.
As secondary growth proceeds in a dicot stem, the thickness of
9.
A mature sieve tube differs from a vessel in
10.
Cork cambium of dicot originates from