Excretion, Biology

Assignment Help:

Excretion

Excretion is the removal of toxic waste products of metabolism from the body. The end-products of metabolism are either eliminated or conserved by an animal depending on its physiology. Carbon atoms are eliminated in carbon dioxide, hydrogen in water, and oxygen in carbon dioxide and water. Nitrogen which is the end-product of protein catabolism is found in large quantities. It is highly toxic and needs to be excreted as soon as it is formed, or converted into less toxic form before being eventually excreted.

In this you will learn how animals get rid of the toxic nitrogen. You will also study the structure and function of the excretory organs of various animals and also the mechanisms that -regulate kidney function. After that you shall study about osmoregulation, a process which maintains osmotic and ionic concentration of the body fluids. The processes of excretion and osmoregulation are performed by the same set of organs and maintain homeostasis. In this unit osmoregulatory function of the organs has also been dealt with at some places along with their excretory function.


Related Discussions:- Excretion

Describe aerobic respiration to the pyruvic acid molecules, Q. What happens...

Q. What happens during aerobic respiration to the pyruvic acid molecules made by glycolysis? and What is the sequence of reactions that then follows? The pyruvic acid molecules

What is thyroid disease, Q. What is thyroid disease? Thyroid disease: T...

Q. What is thyroid disease? Thyroid disease: Thyroid disease is associated with angina. Anginas pectoris presents itself in the form of speific symptoms which tend to re- oc

What is the neurotransmitter of the neuromuscular junction, What is the neu...

What is the neurotransmitter of the neuromuscular junction? How does the nervous system trigger muscle contraction? The nervous cells that trigger the muscle contraction are th

Define the nutritional assessment tools, Define the Nutritional Assessment ...

Define the Nutritional Assessment Tools? Malnutrition/protein energy malnutrition amongst elderly persons has been observed in various studies -be it hospitalized patients, nur

Define phases of the absorption of iron, Define phases of the absorption of...

Define phases of the absorption of iron? The process of absorption is divided into three phases: i) Iron uptake by enterocytes (epithelial cell of the superficial layer of t

Membrane carbohydrate, The  extracellular   surface  of  the  plasma  membr...

The  extracellular   surface  of  the  plasma  membrane   is  frequently  covered  with  a protective  coat  of carbohydrate. A Sugar  residue  of this  carbohydrate  coat can  be

What do you mean by trichomoniasis, Q. What is trichomoniasis? Why is it cl...

Q. What is trichomoniasis? Why is it classified as an STD? The Trichomoniasis is an extra-intestinal protozoan infection caused by the Trichomonas vaginalis, a flagellate proto

Energy demand for vigorous or vigorously active lifestyles, Determine Energ...

Determine Energy demand for Vigorous or vigorously active lifestyles? These people engage regularly in strenuous work or in strenuous leisure activities for several hours. Exam

Define obligatory and facultative water excretion, Define Obligatory and Fa...

Define Obligatory and Facultative water excretion? i) Obligatory water excretion: The kidney is 'obligated' to excrete some water to rid the body of its daily load of urinary s

Illustrate the effect of the drugs, Which of the following is an effect of ...

Which of the following is an effect of the following drugs? A. Drug A is an agonist of the Vasopressin2 Receptor (V2R).  High levels of Drug A in the extracellular spaces surro

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