TLS Online TPP Program

#Question id: 4132


In E. coli, aminoacyl-tRNA synthetases:

#SCPH05 I Biotechnology
  1. activate amino acids in 12 steps

  2. are amino acid–specific; there is at least one enzyme specific for each amino acid.

  3. fall into two classes, each of which attaches amino acids to different ends of the tRNA.

  4. have no proofreading activities.

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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?

TLS Online TPP Program

#Question id: 10273

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

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: 10273

#SCPH05 I Biotechnology

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