Which of the following is/are living cells?
$I.$ Vessel, $II.$ Tracheids, $III.$ Companion cells
$I$ and $II$
Only $III$
$II$ and $III$
Only $I$
You are given a fairly old piece of dicot stem and a dicot root. Which of the following anatomical structures will you use to distinguish between the two ?
Match the following:
Column $- I$ | Column $- II$ |
$(1)$ Monocot stem | $(a)$ Bulliform cells |
$(2)$ Monocot root | $(b)$ Casperian strips |
$(3)$ monocot leaf | $(c)$ Polyarch xylem bundles |
$(d)$ Vascular bundles conjoint and closed |
Location / Function :
$(i)$ Casparian strips
$(ii)$ Starch sheath
Assertion : Collenchyma is thick walled dead tissue.
Reason : Collenchymatous cells show thickenings of pectin
What is a secondary meristem ? One which originates from