Chlorenchyma cells are chlorophyll-containing:

Sieve tubes have

Match the following columns:

Column-$I$	Column-$II$
$P$. Parenchyma	$I$. No thickening
$Q$. Collenchyma	$II$. Pectin thickening
$R$. Sclerenchyma	$III$. Lignin thickening

In old sieve tubes at the end of the growing season,which of the following gets deposited over the sieve plate to regulate sugar transport?

Which of the following is absent in most of the monocotyledons?

Write a note on complex tissues.