TLS Online TPP Program

#Question id: 650


On the basis of hypothetical binding curve given below, which of the following statement is INCORRECT

#Section 2: General Biology
  1. Ɵ Theta represents the fraction of binding sites occupied by ligand, the concentration of ligand at which half the binding sites are occupied

  2. A hypothetical binding curve for a ligand L. The [L] at which half of the available ligand binding sites are occupied is equivalent to 1/Ka, or Kd.

  3. The curve has a horizontal asymptote at Ɵ Theta = 1 and a vertical asymptote at [L] = -1/Kd.

  4. Ɵ Theta is analogous to Vmax for Michaelis- Menton enzymes.

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TLS Online TPP Program

#Question id: 9598

#Section 2: General Biology

In the oxidized state, reaction centre chlorophylls contain an unpaired electron, Molecules with unpaired electrons can often be detected by a magnetic-resonance technique known as

TLS Online TPP Program

#Question id: 9599

#Section 2: General Biology

The primary donor of PSI, P700, is a dimer of chlorophyll a molecules, in primary donor chlorophyll, additional chlorophylls molecules such as

TLS Online TPP Program

#Question id: 10127

#Section 2: General Biology

In higher plants, the multi-subunit protein supercomplex has two complete reaction centers and some antenna complexes. The core of the reaction center consists of two membrane proteins known as D1 and D2, Which contained a multi-subunit protein supercomplexes;

TLS Online TPP Program

#Question id: 10129

#Section 2: General Biology

Oxidation of water to form molecular oxygen is very difficult: The photosynthetic oxygen-evolving complex is the only known biochemical system that carries out this reaction which essential cofactor are involved in the water-oxidizing process?

TLS Online TPP Program

#Question id: 10131

#Section 2: General Biology

The detailed chemical mechanism of the oxidation of water to O2 is not yet well understood, but with structural information shows_one electron carrier, generally identified as Yz, functions between the oxygen-evolving complex and P680 to function in this region, Yz needs to have a very strong tendency to retain its electrons, this species has been identified as;

TLS Online TPP Program

#Question id: 10132

#Section 2: General Biology

Which of the following statements would be correct for photophosphorylation ?