TLS Online TPP Program

#Question id: 2629


Case of constitutive mutants,

#Unit 2. Cellular Organization
  1. Lac Oc, required a higher concentration of repressor to achieve full binding than did the wild-type operator.

  2. Lac I-, that causes the repressor to bind IPTG more loosely than normal.

  3. Only A

  4. A & B both

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TLS Online TPP Program

#Question id: 10132

#Unit 6. System Physiology – Plant

Which of the following statements would be correct for photophosphorylation ?

TLS Online TPP Program

#Question id: 10131

#Unit 6. System Physiology – Plant

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: 10128

#Unit 6. System Physiology – Plant

PSII also involve in oxidation of water molecules, water is a very stable molecule that’s why  Oxidation of water to form molecular oxygen is very difficult, Many studies have provided a substantial amount of information about the process known;

which of the following are false ?

TLS Online TPP Program

#Question id: 9598

#Unit 6. System Physiology – Plant

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: 9597

#Unit 6. System Physiology – Plant

The reaction centre bacteriochlorophyll from purple photosynthetic bacteria was similarly identified as-

TLS Online TPP Program

#Question id: 9594

#Unit 6. System Physiology – Plant

The first reaction that converts electron energy into chemical energy—What will happened in  the primary photochemical event—