crossword on chpt - cell , structure and function

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Across
  1. 3. are called the suicide bags of the cell
  2. 5. sac like organelle present in cells which stores food , water or wastes
  3. 6. is called the power house of a cell
  4. 7. smallest structural and functional unit
Down
  1. 1. the nucleus and the cytoplasm together form the _____
  2. 2. is a cell which expands and contracts
  3. 4. cells which have a well defined nucleus are called ____