Control of excretion, Biology

Assignment Help:

CONTROL OF EXCRETION -

1.      In brain hypothalamus is osmocentre that controls minerals.

2.      Cells of DCT & arterioles combien to form Juxta glomerular node, it secretes ranin that controls renal blood pressure.

3.      In defficiency of O2, some chemicals excreted from kidney that combines with globuline to form erythropoitein which stimulates erythropoisis.

4.      Endocrine regualtion - A.D.H. or vassopressin increases water absorption in nephron. On its hypoactivity diabetes insipsides (teste less urine) is caused.

  • Thyroxine decreses water absorption.
  • Aldesterone controls Na & K. Peratharmone stimulates absorption of Ca++.

Note :- ADH and Aldasteron controls quantity of urine.


Related Discussions:- Control of excretion

Explain about the classification of fungi, Explain about the Classification...

Explain about the Classification of Fungi? The fungi, as you may recall reading above, is now placed in a separate kingdom called Myceteae. Traditionally, fungi were divided in

State the types of brain trauma, State the types of brain trauma? There...

State the types of brain trauma? There are two main types of brain trauma a) open head injury and b) closed head injury

Determine the occurrence of folic acid, Occurrence of folic acid Folic...

Occurrence of folic acid Folic acid is an active principle widely  occurring in the animal and vegetable kingdom. Richest sources are liver, dark  green leafy vegetables, bean

Impulse transmission, The conduction of impulse in a nerve fibre is. a elec...

The conduction of impulse in a nerve fibre is. a electrochemical process. Maximum speed of transmission of nerve impulse can be 13 metre/second due to axoplasm is much resistant to

Regulatory mechanisms, Normal 0 false false false EN-IN...

Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4

What happens to the movement of molecules at equilibrium, What happens to t...

What happens to the movement of molecules at equilibrium? At equilibrium, the movement of molecules continues, but because there is no concentration gradient, there is no net m

What do you mean by binomial system in binomial nomenclature, Q. What do yo...

Q. What do you mean by Binomial system in binomial nomenclature? In the previous sections we have outlined the concepts of binomial nomenclature at International level and the

Arthropod classes characterized by number of limbs, Q. How are the three ma...

Q. How are the three major arthropod classes characterized according to the number of limbs? Most crustaceans have five pairs of limbs. Arachnids present four pairs and Insects

Example of trial balance columns, Q. Example of Trial Balance columns? ...

Q. Example of Trial Balance columns? Start by extending all of Micro Train's revenue and expense account balances in the Adjusted Trial Balance columns to the Income Statement

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