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Cell membrane is

A. permeable

B. semipermeable

C. selectively permeable

D. impermeable

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  1. Cell membrane is
  2. Which of the following is in liquid form at room temperature ?
  3. Which of the following is the lightest metal ?
  4. The metallic constituents of hard water are
  5. In a certain electronic circuit the output is positive if input 1 is positive and input 2 is zero. If…
  6. Which of the following items will be attracted to the north pole of a permanent magnet by a magnet force?
  7. The oxide of Nitrogen used in medicine as anaesthetic is
  8. Nitrification means
  9. The solar eclipse occurs when
  10. The type of glass used in making prisms and lenses is
  11. Old-written material, which cannot be read easily can be read by
  12. The formula of Plaster of Paris is
  13. The major ingredient of leather is
  14. The metal used in storage batteries
  15. Carbon tetrachloride fire extinguisher should not be used in closed room because it produces poisonous…
  16. Rust is
  17. The chemial name of Uria is
  18. Which of the following parts of the sun is easily visible only during a total solar eclipse?
  19. Which of the following is most likely to cause a rise in the average temperature of earth's atmosphere…
  20. Permanent hardness of water can be removed by adding
  21. The marine animal called dugong which is vulnerable to extinction is a/an
  22. Which of the following characters is not shown by hydrogen
  23. Apparatus invented by Archimedes is :
  24. The speed of light with the rise in the temperature of the medium
  25. Which of the following elements is non-radioactive?
  26. The removal of top soil by water or wind is called
  27. In an atomic nucleus, neutrons and protons are held together by
  28. The recent atomic weight scale is based on
  29. Earth's seasons are caused by which of the following?
  30. The fastest-running terrestrial animal is