TLS Online TPP Program

#Question id: 2237


Glucose enters erythrocytes via a GLUT-1 uniporter. As the levels of glucose in the bloodstream decrease between meals, what happens to the glucose in the cells?

#Unit 2. Cellular Organization
  1. Glucose leaves the cell through the GLUT-1 uniporter, traveling down the new concentration gradient.

  2. Glucose remains in the cell because uniporters can only transport in one direction.

  3. Glucose remains in the cell because the GLUT-1 uniporters are gated and the gates close at low glucose concentrations.

  4. Glucose remains in the cell because it has been phosphorylated and no longer has affinity for the GLUT-1 uniporter.

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TLS Online TPP Program

#Question id: 10760

#Unit 6. System Physiology – Plant

Following are some statements of secondary metabolites of terpenes in plants is incorrect?

TLS Online TPP Program

#Question id: 10761

#Unit 6. System Physiology – Plant

Which one of the following combinations of secondary metabolite biosynthetic pathway found in the biosynthesis of terpenes?

TLS Online TPP Program

#Question id: 10762

#Unit 6. System Physiology – Plant

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

#Unit 6. System Physiology – Plant

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

#Unit 6. System Physiology – Plant

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

#Unit 6. System Physiology – Plant

Geranyl diphosphate is a precursor of which plant hormone biosynthesis?