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TLS Online TPP Program

#Question id: 10977

A 60-year-old man’s EKG shows that he has an R-R interval of 0.55 sec. Which of the following best explains his condition?

#I Life Science/ Life Sciences Group – I-V
  1. He has fever
  2. He has a normal heart rate
  3. He has excess parasympathetic stimulation of the S-A node
  4. He is a trained athlete at rest
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TLS Online TPP Program

#Question id: 15140

#I Life Science/ Life Sciences Group – I-V

Two types of pair-wise sequence alignment of the same hypothetical protein sequence fragments are illustrated in the figure below. Vertical bars between the sequences indicate the presence of identical amino acids. * symbols in Figure Y indicate residues not included in the alignment.





Which one of the following is correct?
TLS Online TPP Program

#Question id: 14168

#SCPH05 I Biotechnology

Corn-steep liquor contains 2.5 % invert sugars and 50% water; the rest can be considered solids. Beet molasses containing 50% sucrose, 1% invert sugars, 18% water and the remainder solids, is mixed with corn-steep liquor in a mixing tank. Water is added to produce a diluted sugar mixture containing 2% (w/w) invert sugars. 125 kg corn-steep liquor and 45 kg molasses are fed into the tank.

What is the concentration of solids in the final mixture?
TLS Online TPP Program

#Question id: 18675

#SCPH01 Biochemistry

Which of the following is the example free solution electrophoresis
TLS Online TPP Program

#Question id: 2070

#I Life Science/ Life Sciences Group – I-V

The sodium-potassium pump is called an electrogenic pump because it:
TLS Online TPP Program

#Question id: 40

#SCPH05 I Biotechnology

Given that the standard free-energy change for the reaction glucose + Pi → glucose 6-phosphate is 13.8 kJ/mol, and the standard free-energy change for the reaction ATP → ADP + Pi is −30.5 kJ/mol, what is the free-energy change for the reaction glucose + ATP → glucose 6-phosphate + ADP?