Plant cells that are photosynthetically active are found in the ...$A$... layer of leaves and are ...$B$....
Choose the correct combination of $A$ and $B$ from the below given options
$A-$ mesophyll, $B-$ parenchymatous
$A-$ mesophyll, $B-$ collenchymatous
$A-$ mesophyll, $B-$ sclerenchymatous
$A-$ mesophyll, $B-$ merismatic
Write a note on the Vascular Tissue System.
Vessels are not present in the xylem of
Mature wood stem has a peripheral water proof tissue with opening in the form of scars on its surface. They are
Ground tissue includes
$I.$ These tissue are found as layers or patches
$II.$ It consists of cells which are thickened at the corners
$III.$ It often contains chloroplast
$IV.$ Intercellular spaces are absent
$V.$ They provide mechanical support to growing parts of plants The above characters are attributed to