TLS Online TPP Program

#Question id: 10466


In Arabidopsis, phot1 mutants have a normal avoidance response and a poor accumulation response, phot2 mutants lack the avoidance response but retain a fairly normal accumulation response, while phot1/phot2 double mutant lack both the avoidance and accumulation responses. These results indicate that,

#Unit 6. System Physiology – Plant
  1. Phot1 plays a key role in the avoidance response, and that both phot1 and phot2 contribute to the accumulation response
  2. Phot2 plays a key role in the avoidance response, and that both phot1 and phot2 contribute to the accumulation response
  3. Phot2 plays a key role in the accumulation response, and that both phot1 and phot2 contribute to the accumulation response as well as in avoidance response 
  4. phot1 mutants in fact do not survive in the field under conditions of full sunlight due to photooxidative damage
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TLS Online TPP Program

#Question id: 10303

#Unit 6. System Physiology – Plant

During glycolysis, if radiolabelled the glucose at 3 or 4 carbon then what will be the correct prediction about radiolabelling in the cycle?

TLS Online TPP Program

#Question id: 10300

#Unit 6. System Physiology – Plant

which of the following lipid occur in cells only in the inner mitochondrial membrane is about 15% composition only ;

TLS Online TPP Program

#Question id: 10298

#Unit 6. System Physiology – Plant

Wernicke-Korsakoff syndrome is more common among people with alcoholism than in the general population, The syndrome can be exacerbated by a mutation in the gene for;

TLS Online TPP Program

#Question id: 10297

#Unit 6. System Physiology – Plant

The following statements are related to pentose phosphate pathway.

a) The first and third steps are oxidations with large, negative standard free-energy changes and are essentially irreversible in the cell

b) NADPH rises and inhibits the first enzyme in the pentose phosphate pathway. As a result, more glucose 6-phosphate is available for glycolysis

c) All the enzymes of the reversible reaction of the pentose phosphate pathway are located in the cytosol

d) The NADPH is used for biosynthetic reactions such as lipid synthesis and nitrogen assimilation in the cytosol

which one of the following combination  of above statements is incorrect?

TLS Online TPP Program

#Question id: 10295

#Unit 6. System Physiology – Plant

Reactions of the pentose phosphate pathway regeneration run six turns of this cycle, what will be predict after that?

TLS Online TPP Program

#Question id: 10289

#Unit 6. System Physiology – Plant

If C6 of glucose is radiolabelled, which carbon of Dihydroxyacetone phosphate and glyceraldehyde 3-phosphate  is radiolabelled?