CSCE TUTORIAL

Class – IX                                                                                                                                                                                    Science

Fundamental Unit of Life

  1. Name two unicellular organisms.
  2. Name the smallest known cell.
  3. Who coined the term ‘Protoplasm’ for the fluid substance of the cell?
  4. Name two structures that are found in plant cell but not in animal cell.
  5. Name the process in which diffusion takes place through a semi permeable membrane.
  6. Name the process by which unicellular freshwater organisms and most plant cell tend to gain water.
  7. Name the cell organelle which serves as a channel for transport of material between cytoplasm and nucleus.
  8. What is the function of cellulose?
  9. Write the full form of DNA.
  10. Name the energy currency of cell.
  11. Name the cell organelle called as the power house of a cell.
  12. Name the organelle that imparts red and yellow colours to the flower.
  13. Name the type of plastid that helps in the process of photosynthesis.
  14. Which of the organelle is present only in plants and possess their own genome and ribosomes.
  15. Which organelle is called the factory of ribosomes?
  16. Where is stroma is present in the cell?
  17. Who discovered cell?
  18. What are all organisms made up of?
  19. Name the largest animal cell.
  20. Who discovered bacteria?
  21. Who discovered nucleus in the cell?
  22. Who gave the term protoplasm?
  23. What are the three functional regions of the cell?
  24. What happens when dried raisins or apricots are put into
    (i).   Pure water
    (ii).  Concentrated solution of sugar
    (iii). Concentrated solution of salt
  25. How do unicellular fresh water organisms and plant cells gain water?
  26. What is plasma membrane made up of?
  27. Name the process through which amoeba acquires its food.
  28. Name the outer covering of an animal cell.
  29. Name the outer covering of the plant cell.
  30. Why are mitochondria called ‘power house of the cell’?

Recommended Posts