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Biophysics - Part 4
1
of
25
💡
Hints:
3
Q1. In the food chain pictured, the source of energy for the water plant is
×
A. Sun
B. Water Plant
C. Mayfly
D. Trout
Q2. Your car has a mass of 2500 kg and a force of 5000 N. How fast will it accelerate?
A. 20 m/s2
B. 2 m/s2
C. 0.5 m/s2
D. 120 N
Q3. Which of the following is not a fundamental unit?
A. centimeter
B. kilogram
C. Kelvin
D. seconds
Q4. The pH of water is 7.0 at the temperature in centigrade
A. 22
B. 30
C. 37
D. 40.
Q5. Function of β-mercaptoethanol in SDS-PAGE is
A. To give negative charges to amino acids in the proteins
B. For the oxidation of disulfide bonds in the proteins
C. For the reduction of disulfide bonds in the proteins
D. For breaking hydrogen bonds in the proteins
Q6. Which picture would be first to show the flow of energy through the food chain.
×
A. Snake
B. Sun
C. Carrot
D. Rabbit
Q7. Concerns of heat measurement and methodsofheatamountmeasurement
A. Viscosity
B. Themometry
C. Calorimetry
D. Elecricity
Q8. Water has a neutral because
A. it has more H+ ions than OH-
B. it has more OH- ions than H+
C. it does not produce any ions
D. it has an equal amount of H+ and OH- in solution
Q9. Radioactive substance emits the following rays except
A. Gamma
B. Beta
C. Alpha
D. X -rays
Q10. Which one of the following microe scopes would you use to visualize a protein fused to an appropriate reporter in a living cell?
A. Fluorescence microscope
B. Scanning electron microscope
C. Differential interference contrast microscope
D. Phase contrast microscope
Q11. The minimum distance between the real image and the real object of a concave mirror is
A. zero
B. 2f
C. f
D. 4f
Q12. Three resistors R___1,R___2, andR___3
A. current passes through all resistors are same
B. R___∞=R___1+R___2+R___3
C. Voltage across all the resistors are same
D. total voltage of a circuit is equal to sum of the voltages across each resistor in circuit
Q13. Complete the sentence.A substance that is more basic has a ___ pH than a substance that is acidic.
A. lower
B. higher
C. the same
D. none of the above
Q14. Convert 0.25 mm to m.(With correct scientific notation form)
A. 25 x 10-3 m
B. 2.5 x 10-4 m
C. 2.5 x 10-5 m
D. 2.5 x 10-2 m
Q15. Strongest bond
A. Vander walls
B. Covalent bond
C. Electostastic
D. Hydrogen bonding
Q16. As the distance between two magnets increases (they get farther apart), the force between them:
A. Increases
B. Decreases
C. Stays the Same
Q17. how many moles are there in 1M NaOH of volume 1L?
A. 1
B. 10
C. 100
D. 1000
Q18. Who stated that action and reaction given to an object is same?
A. Newton
B. Einstein
C. Faraday
D. Hooke
Q19. Which type of crop is a Watermelon?
A. Kharif
B. Rabi
C. Zaid
D. None of these
Q20. Microbiosensors are based on
A. ions effect
B. ionsensitive field effect transistor
C. piezoelectric effect
D. magnetic effect
Q21. An FT-IR instrument record a signal in the
A. frequency domain
B. size domain
C. time domain
D. core domain
Q22. Given two vectors:A = 10m, NB = 15m, E.What is the direction of the resultant vector of A + B? (rounded to whole numbers)
A. 34o North of East
B. 34o East of North
C. 56o North of East
D. 56o East
Q23. Hemolysis is caused by the dilution of RBC by
A. Diffusion
B. Osmosis
C. Effusion
D. Imbibition.
Q24. Giventwovectors:A=10m,NB=15m, E.What is the magnitude of the resultant vector of A + B? (rounded to whole numbers)
A. 5m
B. -5m
C. 18m
D. 325
Q25. Sound of frequency below 20 Hz is called
A. audio sounds
B. infrasonic
C. ultrasonic
D. supersonics
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