The main arena of various types of activities of a cell is

The main arena of various types of activities of a cell is
  1. plasma membrane
  2. mitochondrion
  3. cytoplasm
  4. nucleus

Solution

The main arena of various types of activities of a cell is cytoplasm. Cytoplasm is an aqueous substance containing a variety of cell organelle along with non-living inclusions. The soluble part of cytoplasm forms the background material or ground substance between the cell organelles.

Asked in: NEET 2010 (Screening)

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