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TLS Online TPP Program

#Question id: 10138

The Calvin–Benson cycle proceeds in three phases that are highly coordinated in the chloroplast these three phases namely--Carboxylation, Reduction and Regeneration. The following statements are not related to the three phases of Calvin–Benson cycle:

#Unit 6. System Physiology – Plant
  1. On the basis of Stoichiometry, Six molecules of ATP and six molecules of NADPH are consumed in reduction phase
  2. 1,3-bisphosphoglycerate is reduced to six molecules of glyceraldehyde3-phosphate with the concurrent release of six molecules of inorganic phosphate in reduction phase
  3. In regeneration, which restores the CO2 acceptor ribulose 1,5-bisphosphate, at steady state, the input of CO2 equals the output of triose phosphate
  4. In carboxylation reaction,  Ribulose 1,5-bisphosphate is carboxylated into 3-Phosphoglycerate via rubisco and it uses 3 molecules of CO2 and ATP
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TLS Online TPP Program

#Question id: 24210

#Unit 1. Molecules and their Interaction Relevant to Biology

The human genome encodes four different hexokinases (I to IV), all of which catalyze the same reaction. If Two or more enzymes that catalyze the same reaction but are encoded by different genes are called to be
TLS Online TPP Program

#Question id: 24209

#Unit 1. Molecules and their Interaction Relevant to Biology

Two enzyme having same reaction mechanism using same cofactor such as PDC and KDC
TLS Online TPP Program

#Question id: 24208

#Unit 1. Molecules and their Interaction Relevant to Biology

What is the true substrate for hexokinase
TLS Online TPP Program

#Question id: 14146

#Unit 1. Molecules and their Interaction Relevant to Biology

Match the following

Column A Column B 
A. Cyanide1. Inhibit cytochrome oxidase
B. Piericidin A2. Prevent electron transfer from Fe-S center to ubiquinone              
C. Antimycin A        3. Blocks electron transfer from cytochrome b to cytochrome c1
D. Valinomycin4. K+ ionophore
TLS Online TPP Program

#Question id: 543

#Unit 1. Molecules and their Interaction Relevant to Biology

If glucose labeled with 14C at C-1 (the aldehyde carbon) were metabolized in the liver, the first radioactive pyruvate formed would be labeled in:
TLS Online TPP Program

#Question id: 542

#Unit 1. Molecules and their Interaction Relevant to Biology

Hamsters love to run on exercise wheels. Prolonged running at a high rate of speed requires ATP. Could a hamster with a defective gene for the enzyme lactate dehydrogenase meet the extra ATP demand for prolonged, fast wheel-running by maintaining a high rate of glycolysis? Why or why not?