Characteristics of ammonium transport system, Biology

Assignment Help:

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.


Related Discussions:- Characteristics of ammonium transport system

What is emulsion, Emulsions  You may have eaten Mayonnaise. Some  of yo...

Emulsions  You may have eaten Mayonnaise. Some  of you may also know how it is made. Mayonnaise is a liquid in liquid  dispersion, in fact a true  emulsion.  A true emulsion re

Salt glands in birds and reptiles, Salt Glands in Birds and Reptiles M...

Salt Glands in Birds and Reptiles Marine reptiles for example, iguanas, estuarine sea turtles, crocodiles, sea snakes and marine birds like the marine teleosts do not produce

Which is the first heart chamber into which blood en, Which is the first (h...

Which is the first (human) heart chamber into which blood enters? Where does the blood go after passing that chamber? What is the name of the valve that separates the compartments?

Determine the seeds in the plant kingdom, What is the evolutionary importan...

What is the evolutionary importance of the emergence of seeds in the plant kingdom? The evolutionary significance of the seed is related to the plant capability of distant colo

Why plant nutrients is said to be essential, Why plant nutrients said to be...

Why plant nutrients said to be essential An element is said to be essential if,   (i)   The deficiency of an element in plant, makes it impossible to complete the vegetative

What is blood typing?, What is blood typing? The Blood typing is the de...

What is blood typing? The Blood typing is the determination, by means of tests, of the classification of a blood sample concerning blood group systems (specially the Rh system

What is nucleus where it is found, What is nucleus where it is found? ...

What is nucleus where it is found? Nucleus :  The nucleus is present only in eukaryotic cells. It is the control center and is generally found in the center of the cell. The

#sperm, #sperm of reptilia

#sperm of reptilia

Empirical validity of test procedures, Empirical validity of test procedure...

Empirical validity of test procedures Reitan's great concern has always been with the empirical validity of test procedures. Such validity can only be established by the collec

How to list 7 different types of information, List 7 different types of inf...

List 7 different types of information that must be recorded for every item of evidence collected from a crime scene.

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd