Basic Science : Tools Techniques QUESTIONS AND ANSWERS :: part6 : 1 to 5
Following Basic Science multiple choice objective type questions and answers will help you in many types of 2024 job and other entrance examinations :
1.A major breakthrough in the studies of cells came with the development of electron microscope. This is because |
| Electrom microscope is more powerful than the light microscope as it uses a beam of electrons which |
| has wavelength much longer than that of photons |
| Resolution power of electron microscope is much higher than that of light microscope |
| Resolution power of electron microscope is 200 – 350 nm as compared to 0.1 – 0.2 nm for the light |
2.Tracer elements are |
| Vitamins |
| Radioisotopes |
| Microelements |
| Macroelements |
3.A living cell is to be studied without staining. A microscope useful for it |
| Phase contrast microscope |
| TEM |
| SEM |
| Fluorescent microscope |
4.Pure fractions of cellular components are isolated by |
| Chromatography |
| Differential centrifugation |
| Scanning electron microscopy |
| X-ray diffraction |
5.Which one is not radioactive? |
| ¹⁴C |
| ³H |
| ¹⁸O |
| ³²P |
More Tools Techniques QUESTIONS AND ANSWERS available in next pages
-
Health is the greatest gift, contentment is the greatest wealth -Buddha
- TNTET 2021 - Practice
- SSC CGL 2021 - Practice
- TNPSC Group 2A 2021 - Practice
- IIT JEE
- IIT JEE Q&A
- TNPSC Answer Keys
- TNPSC Group 2 Syllabus
-
TNPSC Q&A
- Online Tests - TNPSC
- Online Tests - GK
- IBPS 2020-2021
- Online Tests - Bank
- Online Tests - RRB NTPC
- Online Tests - UGC NET
- Online Tests - TANCET
- Online Aptitude Test
-
Engineering
-
Programming
-
Basic Science
-
Quiz
- Plus Two Question Papers
- SSLC Question Bank
-
Aptitude Tests
-
Logical Reasoning
-
General Knowledge-Hindi
-
Indian History MCQ
-
Indian Geography MCQ
-
Indian Civics MCQ
-
Indian Economics MCQ
-
CTET Biology MCQ
-
CTET Chemistry MCQ
-
CTET Physics Solved MCQ
-
Arithmetic Tests
- Press Release
- FAQ
- Coaching Centres
- TNPSC Group 1 Syllabus
-
TNPSC Group IV Syllabus
- TRB 2017 in English PDF
- TRB 2017 in Tamil PDF
- TET
- TNTET
Too many of us are not living our dreams because we are living our fears.- Les Brown
