BMEPH401 Biophysics & Biochemistry B.Tech Question Paper : wbut.ac.in
Name of the University : West Bengal University of Technology
Department : Biomedical Engineering
Degree : B.Tech
Sem : IV
Subject Code/Name : BME(PH)-401/Biophysics & Biochemistry
Website : wbut.ac.in
Document Type : Previous Year Examination Question Paper
Download Model/Sample Question Paper :
2012 : https://www.pdfquestion.in/uploads/qpaper.wbut.ac.in/6509-BME(PH)-401-(4151)(1).pdf
Biophysics & Biochemistry Question Paper :
Time Allotted : 3 Hours
Full Marks : 70
** The figures in the margin indicate full marks.
** Candidates are required to give their answers in their own words as far as practicable.
Related : West Bengal University of Technology CH401 Basic Environmental Engineering & Elementary Biology B.Tech Question Paper : www.pdfquestion.in/6507.html
GROUP – A : ( Multiple Choice Type Questions )
1. Choose the correct alternatives for the following : 10* 1 = 10
i) The frequency range of ECG signal is
a) 150 – 200 Hz b) 100 – 150 Hz
c) 0·05 – 100 Hz d) 50 – 100 kHz.
ii) Which of the following is a natural radio isotope ?
a) 16 O b) 14 N
c) 238 U d) None of these.
iii) Approximate range of “let go” current for male is
a) 2 – 8 mA b) 40 – 60 mA
c) 9 – 30 mA d) none of these.
iv) In case of atrial flutter
a) interval between T and P waves completely disappears
b) interval between P and Q waves completely disappears
c) interval between S and T waves completely disappears
d) none of these.
v) One of the macromolecules of cell membrane is
a) phospholipid b) ammonia
c) sodium d) strontium sulphate.
vi) The amount of extra celluar body fluid is
a) 1/3 of TBW ( total body water )
b) 1/4 of TBW ( total body water )
c) 2/3 of TBW ( total body water )
d) 3/4 of TBW ( total body water ).
vii) The normal pH of body is
a) 8.1 b) 7.4
c) 6.4 d) 8.9.
viii) Alpha block occurs in
a) ECG b) EEG
c) EMG d) EOG.
ix) Differences in concentration of ions on opposite sides of a cell membrane is called
a) Membrane potential
b) Membrane pump
c) Transmembrane pump
d) None of these.
x) The ratio of the volume of O 2 taken and CO 2 given out during respiration is called
a) Respiratory quotient
b) TCA cycle
c) Glycolysis
d) oxidation.
GROUP – B : ( Short Answer Type Questions )
Answer any three of the following. 3 5 = 15
2. With the help of a block diagram, explain the functioning of a visual colorimeter.
3. What do you mean by fluorescence and phosphorescence in terms of photochemistry ?
4. Classify carbohydrate with example.
5. Give a brief outline of the recording procedure of EMG signal.
6. What is Utracentrifugation ? Explain electrophoresis. 2 + 3
7. Explain the function of body fluid ? How the acid-base balance of our body is maintained ? 2 + 3
GROUP – C : ( Long Answer Type Questions )
Answer any three of the following. 3 15 = 45
8. Define radioactivity with the help of law of radioactivity decay. Briefly describe a procedure for production of radioisotopes. Give a brief outline of interaction of radiation with matter. Discuss about the electrical properties of excitable cell membrane. 3 + 4 + 4 + 4
9. What do you mean by macroshock and microshock in the physiological measurement ? Briefly discuss about the recording procedure of EEG signals and give a brief outline of medical significance of EEG waveforms. Draw an equivalent electrical circuit of cell membrane. What is Electro-Retino Gram ( ERG ) ? 3 + ( 4 + 2 ) + 3 + 3
10. Briefly describe the procedure of 12-leads ECG recording. What is the medical significance ( diagnostic importance ) of ECG waveform ? What is bipolar method of body impedance.
11. What do you mean by primary, secondary, tertiary and quaternary structures of protein ? Why are proteins called amphoteric ? 10 + 5
12. Write the process of translation. Describe the process of DNA replication. 7 + 8
Biophysics – 2013 :
Time Allotted : 3 Hours
Full Marks : 70
** The figures in the margin indicate full marks.
** Candidates are required to give their answers in their own words as far as practicable.
GROUP – A : ( Multiple Choice Type Questions )
1. Choose the correct alternatives for the following : 10 × 1 = 10
ii) In ECG vector cardiography, the first vector represents
a) atrial depolarization
b) spike potential
c) ventricular depolarization
d) none of these.
iii) Normal resting potential of the nerve cell is
a) + 30 mV inside with respect to the outside
b) + 15mV outside with respect to the inside
c) – 90 mV inside with respect to the outside
d) – 70 mV outside with respect to the inside.
v) Ballistocardiography is
a) measurement of velocity of ballistic missiles
b) measurement of ball striking capability of a striker
c) measurement of movement of the body due to movement of the blood
d) measurement of forces exerted on the body due to the movement of the blood.
vii) Magnetic field effects on human body due to the a) presence of
a) H+ inside the body
b) presence of water inside the body
c) presence of Na+ inside the body
d) presence of oxygen inside the body.
viii) Arrhythmia is
a) abnormal heart sound
b) abnormal heart rate
c) abnormal heart frequency
d) abnormal heart beating.
ix) Alpha block occurs
a) in EOG b) in EEG
c) in ECG d) in EMG.
x) The application of an electric shock (defibrillation) to resynchronize the heart is sometimes called
a) cardioversion b) dc defibrillation
c) counter shock d) none of these.
GROUP – B : ( Short Answer Type Questions )
Answer any three of the following. 3 × 5 = 15
2. With suitable diagram, explain the voltage clamp technique for measurement of EMF of living cell.
3. Describe the electrical activity of heart waveform and measurement.
4. What is microwave ? What is the microwave frequency band range ? For what purpose is it commonly used on patients in a hospital ? 1 + 2 + 2
5. Give a brief note on the uses of ultrasound in the biological field.
6. State the laws of photochemistry. What is fluorescence ? Give an example of a fluorescent material. 3 + 1 + 1
7. With the empirical relation, state the law of radioactive decay. What is half-life period ? 3 + 2