I.    Name the following:

  1. The basic structural and functional unit of all living beings.
  2. The semipermeable membrane surrounding a cell.
  3. An organelle that is the site of protein synthesis.
  4. Kitchen of the cell.
  5. Membrane of vacuoles.
  6. A cell organelle found only in animal cell.
  7. A cell organelle found only in plant cell.
  8. Cells that do not have well organised nucleus.
  9. Plastid containing coloured pigment.
  10. The powerhouse of the cell.
  11. A non-living substance of which cell wall is formed.
  12. Cells that have a well organised nucleus.
  13. Cell organelle that trap solar energy for photosynthesis.
  14. The green coloured pigment present inside the chloroplast.
  15. The part of cell which is formed of an irregular network of tubular double membranes.
  16. The cell organelle concerned with the secretion of enzymes.
  17. Cell organelle which have their own DNA.
  18. Hereditary units of which chromosomes are composed.
  19. Suicide bags of the cell.
  20. Colourless plastids.