A) Under which of the following magnifications would one see a larger part of the specimen: X40 or X300? Give a reason. b) State how magnification is worked out in a light microscope. c) State two ways in which floating leaves of aquatic plants are adopted to gaseous exchange.

Huu hapa ni jibu la swali lako:

15. a) Chini ya ukuzaji wa X40 ndipo mtu angeona sehemu kubwa zaidi ya sampuli.
Sababu: Ukuzaji mdogo (kama X40) huonyesha eneo pana zaidi la sampuli, ingawa kwa undani mdogo, ikilinganishwa na ukuzaji wa juu (kama X300) ambao huonyesha eneo dogo lakini kwa undani zaidi.

15. b) Ukuzaji katika darubini ya mwanga huhesabiwa kwa kuzidisha ukuzaji wa lenzi ya macho (eyepiece lens) na ukuzaji wa lenzi ya lengo (objective lens).