Characteristics of ammonium transport system, Biology

Characteristics of Ammonium Transport System

The following are the characteristics of ammonium transport system:

  1. Ammonium transport system is ammonia' repressible as it is absent in cultures grown with ammonia as 'nitrogen source;
  2. Nitrogen limitation for growth appears to be the signal for the induction of the Ammonium transport system
  3. Ammonium transport system like other transport processes is an energy requiring active process.

Since higher levels of ammonia in lower plant cells like cyanobacteria exert toxic effects, there must occur a closer interrelationship between uptake and assimilation of ammonia in such systems. Further studies are required to clearly understand the interdependence of the two processes. At this point it is important to point out that the characteristics of ammonium transport process has not been studied in higher plants.

Posted Date: 1/17/2013 5:48:58 AM | Location : United States







Related Discussions:- Characteristics of ammonium transport system, Assignment Help, Ask Question on Characteristics of ammonium transport system, Get Answer, Expert's Help, Characteristics of ammonium transport system Discussions

Write discussion on Characteristics of ammonium transport system
Your posts are moderated
Related Questions
advantages and disadvantages of protozoa

List the reactions that need to be circumvented by the special reactions in gluconeogenesis. The reactions that are circumvented  include: Between pyruvate and phosphoenolpy

Q. Illustrate Morphological Evidence? Morphology is the study of structure and form of plants and animals usually dealing with the organism and its component organs. Morphologi

In studies of human body, which of the below terms is used to describe the first step in production of urine? Is it: a) Tubular reabsorption b) Tubular secretion c) Glome

How many grams of sodium dodecyl sulfate (mw = 288.37) would you dissolve in 80 mLs of water to make a 20% solution of SDS?

Isomerases These  enzymes (code  EC 5)  catalyze geometric  or  structural  changes  within  a molecule. According  to the  type of  isomerism,  they  may be  called  racemases

Question 1 Discuss eukaryotic replication Question 2 Write an account on eukaryotic transcription factors Question 3 Write a detailed account on eukaryotic translation e

Atom has how many eletrons

Eucaryotic cell structure All eucaryotic cells have a cytoskeleton made up of a network of protein filaments (Figure shown below). This network gives the cell its shape, capac

Determine about the microtubules The microtubules are hollow tubular structures formed by a special arrangement of two proteins called the alpha and beta tubulins. The microtu