TLS Online TPP Program

#Question id: 423


The glycolytic pathway oxidizes glucose to two molecules of pyruvate and also produces a net of two molecules of ATP. ATP allosterically inhibits the enzyme, PFK-1, that catalyzes the third step of glycolysis. This is an example of ________.

#SCPH05 I Biotechnology
  1. feed-forward activation  

  2. negative cooperativity

  3. feedback inhibition

  4. competitive inhibition

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TLS Online TPP Program

#Question id: 10253

#SCPH05 I Biotechnology

Two pathways for the splitting of sucrose are known in plants, both of which take part in the use of sucrose from phloem unloading;

TLS Online TPP Program

#Question id: 10254

#I Life Science/ Life Sciences Group – I-V

Sucrose is split into its two monosaccharide units—glucose and fructose—which can readily enter the glycolytic pathway. Two pathways for the splitting of sucrose are known in plants, both of which take part in the use of sucrose from phloem unloading; Invertase pathway and sucrose synthase pathway, some statements are given about these pathways, which of the following is incorrect?

TLS Online TPP Program

#Question id: 10254

#SCPH05 I Biotechnology

Sucrose is split into its two monosaccharide units—glucose and fructose—which can readily enter the glycolytic pathway. Two pathways for the splitting of sucrose are known in plants, both of which take part in the use of sucrose from phloem unloading; Invertase pathway and sucrose synthase pathway, some statements are given about these pathways, which of the following is incorrect?

TLS Online TPP Program

#Question id: 10255

#I Life Science/ Life Sciences Group – I-V

In sucrose synthase combines sucrose with UDP to produce fructose and UDP-glucose in the cytosol. What is the function of UDP-glucose pyrophosphorylase?

TLS Online TPP Program

#Question id: 10255

#SCPH05 I Biotechnology

In sucrose synthase combines sucrose with UDP to produce fructose and UDP-glucose in the cytosol. What is the function of UDP-glucose pyrophosphorylase?

TLS Online TPP Program

#Question id: 10256

#I Life Science/ Life Sciences Group – I-V

Both sucrose synthase and invertases can degrade sucrose for glycolysis, what will happen if one of the enzymes is absent or mutant?