TLS Online TPP Program

#Question id: 2113


Why are lipids and proteins free to move laterally in membranes?

#Section 2: General Biology
  1. The interior of the membrane is filled with liquid water.

  2. Lipids and proteins repulse each other in the membrane.

  3. Hydrophilic portions of the lipids are in the interior of the membrane.

  4. There are only weak hydrophobic interactions in the interior of the membrane.

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TLS Online TPP Program

#Question id: 27521

#Section 5: Bioprocess Engineering and Process Biotechnology

In the figure below, '1', '2' and '3' stand for

TLS Online TPP Program

#Question id: 27558

#Section 5: Bioprocess Engineering and Process Biotechnology

10 kg of a pure enzyme (Mr 30 000) catalyses the conversion of 1.5 g of a substrate (Mr 44) to products in 5 minutes. What will be the turnover number in (sec^-1)  ....10^5

TLS Online TPP Program

#Question id: 27562

#Section 5: Bioprocess Engineering and Process Biotechnology

Match each parameter in Group 1 with the appropriate measuring device in Group 2

 Group 1 Group 2
 (P) Pressure (1) Photometer
 (Q) Foam (2) Rotameter
 (R) Turbidity (3) Diaphragm gauge
 (S) Flow rate (4) Rubber sheathed electrode 

TLS Online TPP Program

#Question id: 27563

#Section 5: Bioprocess Engineering and Process Biotechnology

Match the instruments in Group 1 with their corresponding measurements in Group 2

 Group 1 Group 2
 (P) Manometer (1) Agitator speed
 (Q) Rotameter (2) Pressure difference 
 (R) Tachometer (3) Cell number
 (S) Haemocytometer (4) Air flow rate

TLS Online TPP Program

#Question id: 27589

#Section 5: Bioprocess Engineering and Process Biotechnology

The pressure gauge on an autoclave reads 15 psi. What is the absolute pressure in the chamber in psi? (Assume atmospheric pressure is 14.7 psi)

TLS Online TPP Program

#Question id: 27590

#Section 5: Bioprocess Engineering and Process Biotechnology

The pressure gauge on an autoclave reads 15 psi. What is the absolute pressure in the chamber in atm? (Assume atmospheric pressure is 14.7 psi and 1 psi=6.8*10-2 atm