TLS Online TPP Program

#Question id: 1095


What does it mean to say that a signal is transduced?

#XL - Q Biochemistry
  1. The signal enters the cell directly and binds to a receptor inside.

  2. The physical form of the signal changes as it passes from the cell membrane to the ultimate intracellular target.

  3. The signal is amplified, such that even one signal molecule evokes a large response.

  4. The signal triggers a sequence of phosphorylation events inside the cell.

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TLS Online TPP Program

#Question id: 10337

#XL - Q Biochemistry

In biological nitrogen fixation, the process of nitrification by organism respective bacteria A--which convert the ammonia to nitrite and B--- further converted into nitrate in the soil by their respective A and B bacteria known as;

TLS Online TPP Program

#Question id: 10338

#XL - Q Biochemistry

Nitrate from the soil solution actively absorb by Plant roots via several low- and high-affinity transporters known as

TLS Online TPP Program

#Question id: 10339

#XL - Q Biochemistry

Nitrate assimilates into the root where the conversion of nitrate to nitrite in the cytosol, a reduction reaction that involves the transfer of two electrons catalyzes by an enzyme that is NAD(P)H dependent is known as

TLS Online TPP Program

#Question id: 10340

#XL - Q Biochemistry

There several charecteristics of nitrate reductase, which of the following properties of nitrate reductase is incorrect?

TLS Online TPP Program

#Question id: 10341

#XL - Q Biochemistry

The accumulation of nitrate that results from diminished nitrate reductase activity, this symptoms is caused by

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?