TLS Online TPP Program

#Question id: 377


The aqueous solution with the highest pH is:

#SCPH05 I Biotechnology
  1. 1 M NH3 (pKa = 9.25)

  2. 0.5 M NaHCO3 (pKa = 3.77)

  3. 0.1 M NaOH

  4. 0.001 M NaOH

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TLS Online TPP Program

#Question id: 10762

#SCPH05 I Biotechnology

The following are certain statements about secondary metabolites:

a) They protect plants against being eaten by herbivores and against being infected by microbial pathogens

b) Terpenes, are the class of secondary metabolites are synthesized by methyl erythritol phosphate(MEP) pathway and Mevalonic acid pathway

c) Terpenes, are the class of secondary metabolites are synthesized by methyl erythritol phosphate(MEP) pathway and sikkimic acid pathway

Which one of the following combinations of the above statements is correct?

TLS Online TPP Program

#Question id: 10763

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

In mevalonic acid pathway, three molecules of acetyl-CoA are joined together stepwise to form mevalonic acid, which intermediate steps it will perform to yield isopentenyl diphosphate (IPP2)?

TLS Online TPP Program

#Question id: 10763

#SCPH05 I Biotechnology

In mevalonic acid pathway, three molecules of acetyl-CoA are joined together stepwise to form mevalonic acid, which intermediate steps it will perform to yield isopentenyl diphosphate (IPP2)?

TLS Online TPP Program

#Question id: 10774

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

Following are a few statements regarding the structure of terpenes:

a) Isopentenyl diphosphate and Dimethyallyl diphosphate are combinely called monoterpene, respectively

b) Isopentenyl diphosphate and Farnesyl diphosphate are Sesquiterpenes and Tetraterpenes

c) Monoterpenes, Sesquiterpenes and Diterpenes have 10, 20  and 30 carbons, respectively

d) Grenyl grenyl diphosphate usually have 20 carbons compound by multiplying with  2X is known as testraterpenes

Which combination of the above statements is correct?

TLS Online TPP Program

#Question id: 10774

#SCPH05 I Biotechnology

Following are a few statements regarding the structure of terpenes:

a) Isopentenyl diphosphate and Dimethyallyl diphosphate are combinely called monoterpene, respectively

b) Isopentenyl diphosphate and Farnesyl diphosphate are Sesquiterpenes and Tetraterpenes

c) Monoterpenes, Sesquiterpenes and Diterpenes have 10, 20  and 30 carbons, respectively

d) Grenyl grenyl diphosphate usually have 20 carbons compound by multiplying with  2X is known as testraterpenes

Which combination of the above statements is correct?

TLS Online TPP Program

#Question id: 10775

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

Geranyl diphosphate is a precursor of which plant hormone biosynthesis?