Basic Science : Tools Techniques QUESTIONS AND ANSWERS :: part3 : 11 to 15
Following Basic Science multiple choice objective type questions and answers will help you in many types of 2024 job and other entrance examinations :
11.In air the numerical aperture of objective lens would be |
| 1.6 |
| 1.35 |
| 1.0 |
| Less than one |
12.Which one is a new structure obtained during cell fractionation |
| Microsomes |
| Microbodies |
| Endoplasmic reticulum |
| Ribosome subunits |
13.In cell fractionation, the various fractions obtained during differential centrifugation are |
| Plastidial, mitochondrial and microsomal |
| Nuclear, mitochondrial and microsomal |
| Nuclear, plastidial and cytosol |
| Plastidial, microsomal and cytosol |
14.Microspectrophotometry analyses chemicals with the help of |
| Emission spectra |
| Absorption spectra |
| Ability to form gaseous components |
| Both A and C |
15.The specimen for scanning electron microscope is first super cooled in liquid propane at |
| - 20°C |
| - 60°C |
| - 120°C |
| - 180°C |
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