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Biophysics - Part 3
1
of
25
💡
Hints:
3
Q1. Which of the following has the same value as 25 mm?
A. 0.25 m
B. 250 cm
C. 2.5 cm
D. 2.5 m
Q2. Given three vectors:A = 10m, N; B = 15m, E;C = 12m, N.What is the magnitude of the resultant vector of A + B+ C? (rounded to whole numbers)
A. 27
B. 29
C. 5
D. 37
Q3. It is any number that is used to describe a physical phenomenon quantitatively.
A. International System
B. unit
C. mathematical language
D. physical quantities
Q4. Who invented mass spectrometers?
A. J.J. Thompson
B. Goldstein
C. Nikola Tesla
D. Aston
Q5. In which of the following electrovalent compound both cation and anion represent the same inert gas configuration?
A. Calcium bromide.
B. Magnesium chloride
C. Strontium oxide
D. Potassium sulfide
Q6. DNA absorbance can be taken at wavelength?
A. 220 nm
B. 240 nm
C. 160 nm
D. 260 nm
Q7. The substance in the mixture that has the greatest affinity for the stationary phase will travel
A. fastest
B. slowest
Q8. Which of the following gases is unsuitable for use as a GC carrier gas
A. Nitrogen
B. Helium
C. Oxygen
D. Inert
Q9. 250 000 m can be simplified as:
A. 2.5 km
B. 2.5 Mm
C. 250 km
D. 250 Mm
Q10. If 150 Joules of work is needed to move a box 10 meters, what force was used?
A. 1500 N
B. 15 N
C. 1.5 N
D. 150 N
Q11. The average pH of urine is
A. 5.6
B. 6.0
C. 6.4
D. 6.8,
Q12. Balanced or Unbalanced?
×
A. Balanced
B. Unbalanced
Q13. The osmotic pressure of a solution relating to solute molecules depends on the
A. Size
B. Shape
C. Number
D. Volume.
Q14. Which of the following measurement describes an actual vector quantity?
A. 3s to the left
B. 4m distance
C. speed of 30.5 m/s
D. 47 km/h, North-north-west
Q15. In animal cell bioreactor, bubble damage can be minimized by
A. the addition of a shear protectorant
B. using a bubble free oxygen delivery system
C. headspace aeration
D. all of the above
Q16. NMR spectroscopy is
A. Diffraction
B. Absorption
C. Radiation
D. Emission
Q17. If 68 Joules were necessary to move a 4 Newton crate, how far was the crate moved?
A. 272 m
B. 17 m
C. 4.05 m
D. 272 cm
Q18. Which of them gave the law of Buoyancy?
A. Ohm
B. Avagadro
C. Newton
D. Archimedes
Q19. The nature of a solution depends on its H3O+ ,pH
A. [H3O+]
B. [H3O+] and [oH+]
C. [oH+]
D. none of these
Q20. Bile salts make emulsification with fat for the action of
A. Amylase
B. Lipase
C. Pepsin
D. Trypsin
Q21. Displacement is
A. Total length of the path traveled
B. Location of an object relative to a defined zero point
C. How far an object is from its start ing point
D. Non of this
Q22. It is used as a simplified version of a physical system that would be too complicated to analyze in full detail.
A. model
B. artist
C. sample
D. unit
Q23. What happens when unbalanced forces act on an object at rest?
×
A. The object remains at rest
B. The object begins moving in an unpredictable direction
C. The object begins moving in the direction of the net force
D. The object begins moving opposite to the direction of net force
Q24. A mixed fermentation is one, which produces
A. both alcohol and carbon dioxide
B. both acid and cyarbon dioxide
C. both acid and alcohol
D. several different kinds of acid
Q25. What is force?
A. A force is a push or a pull upon an object resulting from the object’s interaction with another object.
B. something used in Star Wars
C. It is the amount of space between two points.
D. It is Superman’s power
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