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Biophysics - Part 1
1
of
25
💡
Hints:
3
Q1. When voltage ‘V’ is applied across a pair of electrode (cathode and anode), a potential gradient ‘E’ is created between the electrodes. We can calculate ‘E’ as:
A. E = V/d
B. E = (1/V) x q
C. E = (Vd)/q
D. E=V+d
Q2. Which of the following animal is the worst smelling animal in the animal kingdom?
A. Tasmanian Devil
B. Bombardier Beetle
C. both a and b
D. none of these
Q3. What force ultimately slows the roller coaster to a stop?
×
A. Applied
B. Normal
C. Friction
D. Magnetic
Q4. The role of APS in SDS PAGE is to
A. Act as a catalyst in the polymer ization of acrylamide
B. Act as a source of free radicals
C. Act as a bridge between acrylamide and bis-acrylamide
D. Act as a pore builder in the polymerized gel
Q5. How much work is being done with 200 N of force over 426 meters?
A. 85,200 J
B. 45,620 J
C. 90,480 J
D. 62,329 J
Q6. What is used to cool the superconducting coil
A. Hydrogen
B. Ice
C. Dry ice
D. Liquid helium
Q7. Bacteria and fungi typically serve what role in an ecosystem?
A. herbivore
B. carnivore
C. omnivore
D. decomposer
Q8. How much water is required to make 100 ml of 100 mM Nacl from 1 M Nacl stock?
A. 99ml
B. 1 ml
C. 10 ml
D. 90 ml
Q9. All hydrogen atoms
A. have the same resonance frequency
B. resonate at different frequencies depending on their environment
C. are attached to carbon
D. resonate at about the same frequency as carbon
Q10. The near point of a hypermetropic person is 0.5m. What kind of lens is suitable to correct his vision defect?
A. a convex lens of focal length 25cm
B. a concave lens of focal length 0.5m
C. a concave lens of focal length 50m
D. a convex lens of focal length 50cm
Q11. Using the scale 1cm: 15 miles, how long should the vector be to represent a 65 miles displacement? (rounded to 2-decimal values)
A. 4.33 cm
B. 0.23 cm
C. 5 cm
D. 50 cm
Q12. The main advantage of discontinuous buffer system in SDS and Native PAGE is
A. Conformation of protein is conserved
B. Constantly maintain the charge of proteins
C. Assist in migration of protein
D. Enhance resolution of separation
Q13. True or False. Acceleration of an object is directly proportional to the net force acting on it?
A. True
B. False
Q14. A field of specialization focused on modelling how the brain and nervous system work.
A. Neuroscience
B. Imaging
C. Nanotechnology
D. Data Analysis
Q15. A high Rf value indicates strong
A. strong affinity to the stationary phase
B. strong affinity to the mobile phase
C. no affinity to the stationary phase
D. no affinity to the stationary phase
Q16. Who is a surgeon in Washington, USA? He has done the first kidney transplantation at the Christian Medical College, Vellore, Tamilnadu?
A. Walther Fleming
B. Potu Narasimha Rao
C. Charles Hufnagel
D. August Weisman
Q17. Hertz is a unit of g
A. Loudness
B. Intensity
C. Frequency
Q18. What is the y-component of the vector 40 m, 30o South of West? (rounded to 2-decimal values)
A. 34.64 m
B. -34.64 m
C. 20.00
D. -20.00
Q19. What is a food chain?
A. a diagram with animals only
B. stages an organism goes through as it grows
C. the place where an organism lives
D. the path of energy in an environment
Q20. The ‘tracking dye’ used in SDS PAGE will be
A. Anionic
B. Cationic
C. Non-ionic
D. Amphipathic
Q21. A penny is an example of
A. An insulator
B. an electron
C. a proton
D. a conductor
Q22. The pH of gastric juice of infants
A. 2.00
B. 4.00
C. 4.50
D. 5.00
Q23. Which of the following is a fungi?
A. Psuedomanas
B. Campylobacter
C. Vibrio Cholera
D. Bassidomycota
Q24. Do these magnets attract or repel?
×
A. Attrack
B. Repel
Q25. In this image
×
A. Series circuit
B. Incomplete circuit
C. Parallel circuit
D. Power source
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