Define obligatory and facultative water excretion, Biology

Assignment Help:

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 solutes; the body's excretory system is designed to maintain the necessary balance through its filtering and selective reabsorbing system in the kidneys. About 15 ml of water is required to dissolve 1g of solute materials arising out of the metabolism. The quantity of obligatory water excretion depends on the load on the metabolic products - chiefly urea and sodium chloride. The average adult obligatory water excretion is about 900 ml.

ii) Facultative water excretion: In addition to obligatory water loss, an additional 500 ml, more or less water is excreted for maintaining water balance.


Related Discussions:- Define obligatory and facultative water excretion

Explain the use of benzoates acid, Q. Explain the use of Benzoates acid? ...

Q. Explain the use of Benzoates acid? Benzoic acid, sodium benzoate and the parahydroxy esters (parabens) are used as preservatives. Benzoic acid and its sodium salt, sodium be

Types of cleavage, TYPES OF CLEAVAGE - Depending upon the distribution ...

TYPES OF CLEAVAGE - Depending upon the distribution & amount of yolk, cleavage is of following types - 1 .      HOLOBLASTIC EQUAL CLEAVAGE ( holos , whole ; blastos, ger

Protozoa and Fungi compare and contrast, classification schemes and charact...

classification schemes and characterisitics used for this.

What is replication, Question 1 Write a short note on the following- ...

Question 1 Write a short note on the following- Structure of DNA. Satellite DNA Transcription. pBR 322 vector Cytokines Microarrays Question 2 What is

Reasons for increasing popularity of dental implants, Q. Reasons for increa...

Q. Reasons for increasing popularity of dental implants? There are various reasons for increased popularity of dental implants. With the rapid development and evolution of impl

Explain starch - tests for presence of exoenzymatic activity, Explain Starc...

Explain Starch - Tests for the Presence of Exoenzymatic Activity? Starch is a polymer of glucose linked together by glycosidic bonds. Microorganisms produce hydrolytic enzyme a

Explain about the vascular tissues, Is transportation of gases in tracheoph...

Is transportation of gases in tracheophytes made through the vascular tissues? Carbon dioxide and oxygen are not transported by the xylem or phloem. These gases reach the cells

Explain clinical dietetics and diet therapy, Explain Clinical dietetics and...

Explain Clinical dietetics and Diet therapy Clinical dietetics  :  The application of  dietetics  in a hospital or health care institutional  setting. Diet therapy  :

Transport and facilitated diffusion have in common, Q. What do active trans...

Q. What do active transport and facilitated diffusion have in common? What are the dissimilarity between them? Facilitated diffusion can be perplexed with active transport beca

Define starch retrogradation, Starch Retrogradation The starch paste or...

Starch Retrogradation The starch paste or solution obtained after the gelatinisation is not stable and generally produces a viscoelastic, firm  and rigid gel. Structural transf

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