TLS Online TPP Program

#Question id: 363


What is the pH of a mixture of 0.042 M NaH2PO4 and 0.058 M Na2HPO4? If 1.0 mL of 10.0 M NaOH is added to a liter of the buffer prepared, how much will the pH change? (pKa = 6.86)

#SCPH05 I Biotechnology
  1. 7.19, 7

  2. 6.86, 7.19

  3. 7, 6.86

  4. 7, 7.19

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TLS Online TPP Program

#Question id: 2653

#SCPH05 I Biotechnology

The sequence of the structural genes in the lac operon is

TLS Online TPP Program

#Question id: 1565

#SCPH01 Biochemistry

Which of the following are symptoms of inflammation that might appear in such art?

TLS Online TPP Program

#Question id: 9584

#SCPH06 I Botany

In given Relationship of oxygen production to flash energy, the first evidence for the interaction between the antenna pigments and the reaction centre, What conclusion can be drawn about based on graph;


a.) several hundred pigments are associated with each reaction centre and that each reaction centre must operate four times to produce 1 molecule of oxygen—hence the value of 2500 chlorophylls per O2

b.) low light intensity of the curve, an increase in the number of photons stimulates a proportional increase in oxygen evolution. Thus, the slope of the curve measures the quantum yield for oxygen production

c.) The quantum yield for a particular process can range from 0 →if that process does not respond to light to 1.0→if every photon absorbed contributes to the process by forming a product

d.) O2 require more than a single photochemical event to be formed, and therefore have a lower quantum yield of formation than the photochemical quantum yield. It takes about ten photons to produce one molecule of O2, so the quantum yield of O2 production is about 0.1

Which of the following statements would be correct relates with graph?

TLS Online TPP Program

#Question id: 15699

#SCPH05 I Biotechnology

The PROSITE pattern representing the conserved sequence motif for a new family of AMP binding protein is [LIVMFY]-X(2)-[STG]-[STAG]-G-[ST]. You are given a sequence of a 15-amino acid stretch starting from the first residue of the motif. Which one of the following proteins is likely to have AMP binding function?

TLS Online TPP Program

#Question id: 298

#SCPH01 Biochemistry

Water molecules contain _____________ hydrogen bond/s.