cell-the unit of life

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Across
  1. 4. The membrane-bound organelle containing hydrolytic enzymes for intracellular digestion.
  2. 6. The organelle containing centrioles, typically present in animal cells.
  3. 8. The complex of DNA and proteins present inside the nucleus.
  4. 9. The colourless fluid matrix surrounding the grana in a chloroplast.
  5. 11. LAMELLA The layer mainly composed of calcium pectate that joins adjacent plant cells.
  6. 12. The first person to observe living cells using a microscope.
  7. 15. The basic structural and functional unit of life.
  8. 16. The membrane-bound organelle that contains the genetic material and controls cellular activities.
  9. 17. The condensed form of chromatin visible during cell division.
  10. 20. The flattened membranous sacs present inside the chloroplast.
  11. 21. The membrane surrounding the vacuole in a plant cell.
  12. 22. The organelle found in plant cells that includes chloroplasts, chromoplasts and leucoplasts.
  13. 23. The green plastid responsible for photosynthesis.
  14. 24. The hollow protein structures that form part of the cytoskeleton.
  15. 25. RETICULUM A network of membranous tubules and sacs involved in synthesis and transport.
  16. 26. A type of cell having a well-defined membrane-bound nucleus.
  17. 27. The membrane-bound structure containing cell sap and commonly occupying a large part of a mature plant cell.
Down
  1. 1. Cytoplasmic connections between adjacent plant cells.
  2. 2. The semifluid substance between the plasma membrane and nucleus.
  3. 3. MEMBRANE The selectively permeable membrane surrounding the cell.
  4. 5. APPARATUS The organelle involved in modification, packaging and secretion of cellular materials.
  5. 7. Stacks of thylakoids present inside chloroplasts.
  6. 8. The network of protein filaments that provides structural support and helps in cell movement.
  7. 10. The sites of aerobic respiration and ATP production in the cell.
  8. 13. The membrane-bound organelle containing enzymes involved in oxidation reactions.
  9. 14. HOOKE The scientist who first observed and named cells while studying cork.
  10. 15. WALL The rigid non-living outer covering present outside the plasma membrane in plant cells.
  11. 18. The dense region inside the nucleus involved in ribosome formation.
  12. 19. The non-membrane-bound organelle responsible for protein synthesis.
  13. 22. A type of cell lacking a membrane-bound nucleus.