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

Coronary angiography, Q. Can you explain about Diagnostic coronary angiogra...

Q. Can you explain about Diagnostic coronary angiography? Diagnostic coronary angiography has become one of the primary components of cardiac catheterization. In a coronary ang

Functions of the bacterial flora within the human gut, Q. What are the majo...

Q. What are the major functions of the bacterial flora within the human gut? Bacteria that live inside the gut have great importance in digestion. Several polysaccharides like

Discuss the genetics involved in the inheritance, Casein is the main protei...

Casein is the main protein in milk. There are three types of casein, one of which is beta casein. Beta casein comes in two main variants called A1 and A2. The order of amino acids

Factors limiting the productivity of aquatic habitats, Factors Limiting the...

Factors Limiting the Productivity of Aquatic Habitats Sunlight and oxygen are the two most important limiting factors of the aquatic ecosystems. This distinguishes them from t

Bio-insecticides and bio-pesticides, A large number of plants are used for ...

A large number of plants are used for bio-pesticides and bio-fertilizers. Several plant species are used as insecticides against aphids and larvae of insect pests: for insects like

Estuaries - aquatic ecosystems, Estuaries - Aquatic Ecosystems All the...

Estuaries - Aquatic Ecosystems All the rivers and lakes ultimately drain into the sea. However, many rivers develop a highly specialised zone before joining the proper sea. Th

Classification of multicellular animals, Classification of Multicellular An...

Classification of Multicellular Animals The multicellular animals (Animalia) originated from the simpler protozoan protists. You know the simpler multicellular animals further

Define extra enterocyte transfer - non haem iron absorption, Define Extra e...

Define Extra enterocyte transfer - non haem iron absorption? Extra enterocyte transfer: Little is known about iron transport across the baso- lateral membrane. After crossing t

Fossils, what year was homo erectus fossils found

what year was homo erectus fossils found

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