g)Given below is an example of a Certain structure and it's special functional activity. On a
similar pattern fill in the blanks with suitable functions. (5)
e.g. Chloroplast and Photosynthesis
i. Eustachian tube and ___________.
ii. Retina and ___________.
iii. Stomata and _________
iv. Beta cells of pancreas and _______
v. Centromere and_____________

Dear student,
Please find below the answer:

i. Eustachian tube and connection of middle ear cavity with nasopharynx
ii. Retina and Detection of light and turning it into electrical impulses.
iii. Stomata and exchange of gases.
iv. Beta cells of pancreas and production of insulin.
v. Centromere and Binding site for mitotic spindle fibres.

Hope this clears your doubt.
Regards.