MCQ
............... (animal cell structure) is characterized by selective permeability:
- AChromosome
- BCell membrane
- CCell wall
- DRibosomes
Explanation:
The plasma membrane or cell membrane is the outer covering of all cell but in plant cells, it is present below the cell wall.
It is selectively permeable to ions and organic molecules and controls the movement of substances in and out of cells apart from cell-cell recognition.
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$Y$ - Metabolic reactions can be demonstrated outside the body in cell free system
| 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 |