1. A light microscope has a magnification of about
A) 2000 times
B) 1500 times
C) 1000 times
D)500 times
Ans------>a
2. The study of fossils are called
A) taxonomy
B) physiology
C) anatomy
D) paleontology
Ans------>d
3. X-ray crystallography is used to study
A) arrangement of proteins
B) three dimensional structure of proteins
C) composition of proteins and carbohydrates
D) structure of lipids
Ans------>b
4. The process by which all organelles are separated from cell
is
A) electrophoresis
B) cytochemistry
C) radiobiology
D) fractionation
Ans------>d
5. Which microscope would you use to examine a culture of living
cells ?
A) scanning electron microscope
B) tr
Ansmission electron microscope
C) phase contrast microscope
D) polarization microscope
Ans------>c
6. Electron microscope was invented by
A) Knoll and Ruska
B) Robert Hooke
C) j
Anssen
D) Knoll and Hooke
Ans------>a
7. Electron microscope works on the principle of
A) particle nature of electron
B) wave nature of electron
C) both
D) none
Ans------>b
8. The quantitative analysis of a substance can be made with the
help of
A) X-ray crystallography
B) spectrophotometry
C) autoradiography
D) calorimetry
9. Mitochondria was discovered with the help of
A) compound microscope
B) electron microscope
C) scanning electron microscope
D) autoradiography
Ans------>a
10. Electron microscope has revealed the occurrence of
A) leucoplast
B) chloroplast
C) chromosomes
D) ribosomes
Ans------>d
11. Dye used in feulgen's test for detection of DNA is
A) Janus green
B) Basic fuchsine
C) methylene blue
D) acetocarmine
Ans------>b
12. To study the physiological function of a cell organelle, the
method used is
A) autoradiography
B) Fractionation
C) electron microscopy
D ) none of these
Ans------>a
13. Pure fractions of cellular components can be obtained by :
A) X ray diffraction
B) Chromatography
C) differential centrifugation
D) microspectrophotometry
Ans------>c
14. A student wants to study metaphasic behaviour of
chromosomes. The technique most suitable is
A) phase contrast microscope
B) X-ray microscope
C) cell fractionation
D) scanning electron microscope
Ans------>a
15. A living cell can be studied by me Ans of A) Dark field microscope B) electron microscope C) phase contrast microscope D) compound microscope Ans------>c 16. To determine the ultra structure of a cell organelle, the
most likely method to be used would be : A) electron microscope B) microdissection C) autoradiography D) phase contrast microscopy Ans------>a 17. The technique used for seperating DNA fragments is : A) southern blotting B) Northern blotting C) western blotting D) eastern blotting Ans------>a 18. Iodine solution is used to test the presence of: A) carbohydrates B) proteins C) fats D) starch Ans------>d