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TLS Online TPP Program

#Question id: 2149

A ligand-gated ion channel (such as the nicotinic acetylcholine receptor) is:

#XL - S Microbiology

  1.  a charged lipid in the membrane bilayer that allows ions to pass through.

  2. a membrane protein that permits a ligand to pass through the membrane only when opened by the appropriate ion.

  3. a membrane protein that permits an ion to pass through the membrane only when opened by the appropriate ligand.

  4. a molecule that binds to the membrane thereby allowing ions to pass through.

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TLS Online TPP Program

#Question id: 2369

#XL - Q Biochemistry

Fermentation, an anaerobic process, produces 2 ATP per glucose molecule whereas aerobic respiration produces approximately _____ ATP.
TLS Online TPP Program

#Question id: 16862

#General Aptitude

He ….. (buy) a car one month ago.
TLS Online TPP Program

#Question id: 10343

#XL - Q Biochemistry

In many plants, nitrate is assimilated in the root as well as in the shoot according to their native place. Some of the given statements about nitrate assimilation;

a) If plants native to temperate region assimilate NO3- at root

b) If plants native to temperate region assimilate NO3- at shoot

c) Plants native to tropical or subtropical region assimilate NO3- at root

d) Plants native to tropical or subtropical region assimilate NO3- at shoot

Which of the following combination from above statements is correct?
TLS Online TPP Program

#Question id: 2366

#XL - Q Biochemistry

The vitamin ______ is part of the coenzyme NAD
TLS Online TPP Program

#Question id: 413

#XL - S Microbiology

The hydrolysis of ATP has a large negative DG'°; nevertheless it is stable in solution due to: