MCQ
Lignin is the important constituent in the cell wall of
- APhloem
- BParenchyma
- ✓Xylem
- DCambium
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$\begin{array}{|l|l|} \hline Column\;-\;I & Column\;-\;II \\ \hline a.\;pinocytosis & 1.\;Animal\;cell \\ \hline b.\;Lysomes & 2.\;Cell\;wall \\ \hline c.\;ER & 3.\;Acidic\;pH \\ \hline d.\;Centriole & 4.\;Ribosomes \\ \hline & 5.\;liquid\;food \\ \hline \end{array}$

| Column$-I$ | Column$-II$ |
| $(a)$ Halophiles | $(i)$ Hot springs |
| $(b)$ Thermoacidophiles | $(ii)$ Aquatic environment |
| $(c)$ Methanogens | $(iii)$ Guts of ruminants |
| $(d)$ Cyanobacteria | $(iv)$ Salty area |
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