TLS Online TPP Program

#Question id: 601


In a ping-pong reaction which does not occur?

#Unit 1. Molecules and their Interaction Relevant to Biology
  1. One product is released before a second substrate is bound.

  2. The enzyme covalently binds a portion of the first substrate.

  3. The enzyme is permanently converted to an altered form by the first substrate.

  4. A group is transferred from one substrate to another.

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TLS Online TPP Program

#Question id: 10273

#Unit 6. System Physiology – Plant

The existence of different pathways that serve a similar function and can replace each other without a clear loss in function is called,

TLS Online TPP Program

#Question id: 10274

#Unit 6. System Physiology – Plant

In plastids, a partial glycolysis occurs that produces metabolites for plastidial biosynthetic reactions, which of the following is not synthesized in the plastid?

TLS Online TPP Program

#Question id: 10276

#Unit 6. System Physiology – Plant

In glycolysis, the enzyme glyceraldehyde 3-phosphate dehydrogenase catalyzes;

TLS Online TPP Program

#Question id: 10279

#Unit 6. System Physiology – Plant

Phosphohexose isomerase is one of the enzyme of glycolysis which catalyzes Glucose 6-phosphate to Fructose 6-phosphate, enzyme bind with the hexose in their active site by opening the structure. The ring opening and closing reactions are catalyzed by an active-site present amino acid such as

TLS Online TPP Program

#Question id: 10281

#Unit 6. System Physiology – Plant

Gluconeogenesis is particularly important in plants such as the castor oil plant Ricinus communis and sunflower that store carbon in which form .

TLS Online TPP Program

#Question id: 10282

#Unit 6. System Physiology – Plant

In the glycolytic reaction one of the step is catalyzed by ATP-dependent phosphofructokinase is essentially irreversible, at the same step which one of the following enzyme used in gluconeogenesis, both of the enzymes are ATP dependent.