Mention the function of each of the following:
(i) Tassels of corn-cob
(ii) Mitochondria in sperm 
(iii) Tapetum in the microsporangium ( No links please )

Dear student,
i) Tassels of corn cob is the male part of the corn which releases pollen which is pollinated by wind to female stigma for fertilization.
ii) Mitochondria in sperm provides energy for the sperm motility.
iii) Tapetum provides various nutrient for the development of pollen grain during microsporogenesis.

Regards