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Recent content by ShahdNaasan

  1. S

    A level Biology: Post your doubts here!

    For 27 You can definitely identify Y as the velocity of blood flow because the velocity of blood flow is slowest in capillaries giving time for exchange of substances to happen so definitely it would be C
  2. S

    A level Biology: Post your doubts here!

    For 35 Immunity cannot be inherited because the person has to show an immune response to gain immunity ( develop memory B lymphocytes and memory T lymphocytes) Statement 1 says immunity can be inherited which is wrong thats why option C is correct
  3. S

    A level Biology: Post your doubts here!

    can someone explain this question please ? The largest organelle is nucleus so that would be in solid pellet 1 the next largest is mitochondrion(as in an animal cell no chloroplasts) so solid pellet 2 is mitochondrion then the next largest is nucleolus so thats solid pellet 3 and solid pellet 4...
  4. S

    A level Biology: Post your doubts here!

    Can someone please explain this ? (Answer is D and the examiner report says it is the ribosome )
  5. S

    A level Biology: Post your doubts here!

    Can anyone explain this question?
  6. S

    Chemistry: Post your doubts here!

    Thank you so much. Really appreciated.
  7. S

    A level Biology: Post your doubts here!

    How is it 0.07 seconds ? Isnt it the time between 3 and 4 ?
  8. S

    A level Biology: Post your doubts here!

    No you must draw the cell wall as double lines very close to each other and make sure that it is at constant thickness. Like this :
  9. S

    A level Biology: Post your doubts here!

    They said in the question that they sank to the bottom, the reason it would be a single organelle is because when they are spun in the centrifuge the heaviest one is removed first
  10. S

    A level Biology: Post your doubts here!

    How were they digested ? They sank to the bottom after centrifuging
  11. S

    A level Biology: Post your doubts here!

    Can anyone explain this ?
  12. S

    A level Biology: Post your doubts here!

    Thank you
  13. S

    Chemistry: Post your doubts here!

    Can anyway explain this question or walk me through the answers ?
  14. S

    A level Biology: Post your doubts here!

    How can you tell that they are more turgid if only the leaf shape is shown ?
  15. S

    A level Biology: Post your doubts here!

    I also dont understand this one. Can someone explain ?
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