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Biophysics - Part 5
1
of
25
💡
Hints:
3
Q1. In SDS-PAGE, migration of protein is effected by
A. Charge of protein
B. Size of protein
C. Net charge of protein
D. All of these
Q2. In case of chromatograpdhy the solvent rises up due to
A. Solute
B. Filter paper
C. Capillary action
D. None of the above
Q3. The scientific unit for mass is
A. Kg
B. N
C. pounds
D. ounces
Q4. The surface tension of a solution is increased by
A. Bile salts
B. Bile acids
C. Concentrated sulphuric acid
D. Acetic acid.
Q5. Which of the following is an example of tertiary structure in a protein
A. A multimeric protein
B. An a-helix
C. A P-pleated sheet
D. A globular domain
Q6. ___ cannot make their own food, so they need to consume (eat) plants or animals.
A. consumers
B. producers
C. decomposers
Q7. A fluid in which the viscosity dcreases with increasing stirrer speed and mixing time, can be represented as
A. newtonian fluid
B. pseudoplastic, thixotropic fluid
C. dilatant, rheopectic fluid
D. dilatant, pseudoplastic fluid
Q8. What useful information can be found from a Van Deemter plot
A. The selectivity factor
B. Optimum mobile phase flow rate
C. Optimum column temperature
D. Optimum column length
Q9. Lipids and proteins which are both effective in lowering surface tension are found concentrated in the cell wall following the principle of
A. Johnson-John
B. Gibbs-Thomson
C. Peter- son-Pollen
D. None of the above.
Q10. Two north poles will attract.
A. True
B. False
Q11. Which of the following is a Reduction reaction?
A. Bleaching of colored objects using moist Chlorine
B. Rancidity of fats
C. Thermite process involving the reaction of Chromium oxide (or) Iron oxide with aluminum
D. The poling process involving the removal of impurities from molten metal.
Q12. Osmosis is opposite to
A. Effusion
B. Affusion
C. Confusion
D. Diffusion.
Q13. Stars appears to move from east to west because
A. all stars move from east to west
B. the earth rotates from west to east
C. the earth rotates from east to west
D. the background of the stars moves from west to east
Q14. Lateral diffusion of proteins in membrane can be followed and diffusion rate calculated by:
A. Atomic force microscopy
B. Scanning electron microscopy
C. Transmission electron microscopy
D. FRAP
Q15. The Dutch physician who constructed the dialysis machine in the year 1947
A. Charles Hufnagel
B. William Kolff
C. William Harvey
D. Thomas Graham
Q16. If a cell is immersed in a concentrated solution, it follows the phenomenon
A. Turgor
B. Plasmolysis
C. Hemolysis
D. Paralysis
Q17. This technique would be employed when a rapid diagnosis is necessary:
A. Serial sections
B. Levels
C. Routine paraffin section
D. Frozen section
Q18. The absorption of intact protein from the gut in the foetal and newborn animals takes place by
A. Pinocytosis
B. Passive diffusion
C. Simple diffusion
D. Active transport.
Q19. In SDS-PAGE of protein separation, one SDS molecule will binds to
A. Every amino acid
B. Every two amino acids
C. Every three amino acids
D. Every Four amino acids
Q20. what is the use of centrifuge machine?
A. DNA estimation
B. RNA estimation
C. lipid separation
D. separation of molecules
Q21. what consumer group do YOU fit in?
A. herbivore
B. carnivore
C. omnivore
Q22. What does Parsec measure?
A. Time
B. Distance
C. Volume
D. Mass
Q23. What is the unit of force
A. newton meter
B. newton
C. pascal
D. watt
Q24. A person saw his face inside a mirror he observed his image is smaller in size. What kind of mirror it is
A. diverging
B. converging
C. plane
D. none of these
Q25. Moment of inertia is
A. vector
B. scalar
C. phasor
D. tensor
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