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12th Biology 2018 Set1 Delhi Board Paper Solution

Question 11

Draw a diagram of a mature human sperm. Label any three parts and write their functions.

Answer

Function of Acrosome -

It releases various chemicals like hyalu ronidase and acrosin which helps sperm in fusing with egg cell.



Function of Nucleus -

It stores the genetic information. It carries 23 chromosomes, out of which one is sex chromosome (either X or Y). Thus, it is responsible for determining the sex of the ind ividual.

Function of Middle piece -

T he middle piece contains several mitochondria, which produce energy for the motility of the sperm

microscopic structure of human sperm

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