Quantitative changes, Biology

Quantitative changes

The quantitative changes in the availability of the active biomolecules occur in order to compensate for the loss of efficiency of the system caused by the stress. This is illustrated by the following examples.

  1. There is an increase in the amount of ribulose bisphosphate carboxylase in plants exposed to bright light than those in shade. As you can correlate, there should be an increase in the level of this enzyme to make use of the extra reducing power, (NADPH) generated due to high light intensity.
  2. During infection, enhanced synthesis of hydrolytic enzymes for destroying the invader, and synthesis of inhibitors by host that work against the damaging enzymes produced by the invaders has been observed.
  3. In halotolerant species there is an increase in the synthesis of certain amino acids in order to keep the osmotic balance.
  4. To protect against injury due to toxic metal, there is enhanced synthesis of chelating molecules to avoid toxic ions.
Posted Date: 1/18/2013 12:07:06 AM | Location : United States







Related Discussions:- Quantitative changes, Assignment Help, Ask Question on Quantitative changes, Get Answer, Expert's Help, Quantitative changes Discussions

Write discussion on Quantitative changes
Your posts are moderated
Related Questions
How is the human foetus expelled from the uterus of its mother: The total time required for the embryonic and foetal development is called gestation period which is usually

What is Hemorrhage Mild to moderate capillary ooze can readily be controlled by pressure packing. A more severe venous or, in rarer instances, an arterial bleed may require cl

Define effect of Fat on quality and quantity of human milk? Fat content of milk appears to be subject to variability as compared to other constituents. The average fat content

Q How does water move in sponges? What is the function of the pores in these animals? Sponges are filtering beings they make water enter their bodies by their lateral pores. Wa

Define Procedure for estimation of vitamin c - colorimetric method? Carry out the experiment following the instructions given herewith: 1. Prepare a series of tubes for blan

Phylum-Bacteria (Eubacteria) Eubacteria,th e true bacteria, are extremely small and they exist in vast numbers virtually everywhere on earth. They range from the upper atmosphe


Discuss about the Halstead Reitan battery The Halstead Reitan battery continues to be widely used as a clinical and research procedure. Numerous investigators use it in their r

Extra Cranial MAs Intrathoracic or intra-abdominal MAs are often asymptomatic until leakage or rupture occurs. Most extracranial MAs (ECMAs) will rupture if not excised. The app

Q. What are the three types of germ layers that form tissues and organs in animals? The three germ layers are the mesoderm, the ectoderm and the endoderm.