MINISTRY OF DEFENCE

Image
  MINISTRY OF DEFENCE. Establishment Of National University In Islamabad Total position. 29 Domicile , All over Pakistan    Qualification  intermediate to bachelor positions . Project Engineer(Civil) account Officer  supervisor assistant office boy     How to apply.   Apply online through the link https://www.fgei-cg.gov.pk/nup-rec.php   Last date to apply  02 April 2023. No TA/DA Fo Interview 
Post a Comment

Waste Products Of Animals

Nitrogenous Wastes Of Animal:




Waste Products Of Animals:

The nitrogenous wastes are urea,ammonia and uric acid. These all wastes are not removed by the same animal. These wastes are produced and excreted by different animal which are living in different habitats. The type of nitrogenous waste and their excretion depend upon the habitat of an animal.

1.Ammonia (NH3):
It is the excretory product of aquatic animals,developes by the break down of amino acids,harmful to the living cells,excreted by diffusion and highly soluble in water.
About 500 ml of water is needed to remove one gram of ammonia.
Animals those excrete ammonia are called ammonotelic.


Examples: Eartworm, protozians, sponges and fishes etc.

2.Urea {CO (NH2)2}:

It is the excretory products of mostly land animals,produced by the liver from ammonia,less toxic than ammonia and can be store in the body for short time.
One gram of urea require 50 ml of water for excretion.
Animals those remove urea are called ureotelic.
Examples:Sharks.Mammals,Adults Amphibiansand Turtles.

3.Uric Acid (C5O3N4H4):

Uric Acid is the excretory product of animals which live in the environment with less supply of water.
These animal do not use more water.
It is harmless and less soluble in water.
One ml of water is required to remove 1 gram of uric acid.
It is excreted in the form of paste or crystal with little water.
Animals removing uric acid are called uricotelic.
Example: Many Reptiles.Insects,Birds land snails,


Related Articles:
1.Difference between solute and solvent.
2.what is homeostasis
3.Cold Blooded and Warm blooded

Comments

Post a Comment

Popular posts from this blog

Neurotransmitters and receptors

Image
Neurotransmitters and receptors Did you know there are billions of neurons—and trillions of synapses—in your amazing brain? ^1 1 start superscript, 1, end superscript  (No wonder you can learn anything, including neurobiology!) Most of your synapses are  chemical synapses , meaning that information is carried by chemical messengers from one neuron to the next. In the article on synapses, we discussed how synaptic transmission works. Here, we’ll focus on  neurotransmitters , the chemical messengers released from neurons at synapses so that they can “talk” to neighboring cells. We’ll also look at the receptor proteins that let the target cell “hear” the message. Neurotransmitters: Conventional and unconventional There are many different kinds of neurotransmitters, and new ones are still being discovered! Over the years, the very idea of what makes something a neurotransmitter has changed and broadened. Because the definition has expanded, so...
Read more

What are chromosomes?

Image
Chromosome Chromosome During cell division the chromatin material change into thread like structure called chromosome. Chromosomes are also called physical basis of hereditary. On the chromosomes small bodies are located call genes. There are thousands of genes are present in an organisms.Genes are the unit of heredity. These genes contain hereditary character which are transfered from one generation to another by the help of chromosomes. Chromosomes were discovered by a biologist waldyer in 1876. After that in  1908 Sutton identified the function of chromosomes,that they take part in the transfer of hereditary characters.      ( Next post will be about Structure of chromosomes)
Read more

The Importance of Animal Physiology

The Importance of  Animal Physiology Why is the study of animal physiology important to you and to people in general? Not the least of the reasons is the one we have already emphasized—namely, that a full understanding and appreciation of all the marvels and other phenomena of the animal world depends on an analysis of how animals work. The study of physiology draws us beyond surface impressions into the inner workings of animals, and nearly always this venture is not only a voyage of discovery, but also one of revelation. The study of physiology also has enormous practical applications because physiology is a principal discipline in the understanding of health and disease. The analysis of many human diseases—ranging from aching joints to heart failure—depends on understanding how the “human machine” works. A physician who studies heart disease, for instance, needs to know the forces that make blood flow into the heart chambers between one heartbeat and the next. The physician ...
Read more