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• Resolving power of scanning electron microscope isA. 5-20 nmB. `.01 nm`C. `.1 nm`D. `.0001`
• Resolving power of light microscope isA. `0.2 mum`B. `0.1 mum`C. `2 mum`D. `100 mum`
• Numerical aperture of microscope lens is expressed byA. Angular aperture onlyB. Refractive index onlyC. Both angular aperture and refractive indexD. Wave length of the light used
• Water soluble yellowish pigment present in petals of Dahlia isA. CaroteneB. XanthophyllC. AnthoxanthinD. Anthocyanin
• Which lenses in electron microscope are used to control and focus aA. Convex lensB. Concave lensC. Electric lenses in electron microscope are used to control and focus aD.
• Match column I with column II and select the correct option `{:("Column I", "Column II"),("Sap vacuole",1."Contain digestive enzyme"),("Contractile vacuole",2."Store metabolic gases"),("Food vacuole",3."Osmoregulation"),("Air vacuole", 4."Store lipids"),("Sphaerosomes", 5."Store and concentrate mineral salts & nutrients"):}`A. A-5, B-3, C-1, D-2, E-4B. A-2, B-3, C-4, D-5, E-1C. A-5, B-2, C-3, D-A, E-4D. A-5, B-2, C-2, D-1, E-4
• Match the following and choose the correct combination from the options given `{:("Column I", "Column II"), ("Robert Hooke", 1."Mutation theroy"),("Charles Darwin",2."Swan-necked flask experiment"),("Hugo de vries ", 3."Origin of species"),("Louis pasteus",4."Mcrographia"):}`A. A-3,B-4,C-1,D-2B. A-2,B-1,C-3,D-4C. A-1, B-2, C-3, D-4D. A-4, B-3, C-1,D-2
• The resolving power of a compound microscope will increase withA. Decrease in wavelength of light and increase in numerical apertureB. Increase in wavelength of light and decrease in numerical apertureC. Increase in wavelength of light and numerical apertureD. Decrease in both wavelength of light and numerical aperture
• Match Column - I with Column -II and select the correct option `{:("Column -I", "Column-II"),("Cup shaped", 1."Ulothrix"),("Girdle shaped",2."Oedogonium"),("Stellate",3."Chlamydomonas"),("Reticulate",4."Zygnema"):}`A. A-2, B-4, C-3, D-1B. A-3, B-1, C-4, D-2C. A-3, B-4,C-2,D-1D. A-4, B-3, C-1,D-2
• Which is not true about spareosomesA. Arise from ER.B. Related to fatC. Single membrane bound strutuceD. Involved in photorespiration