Gases, Biology

Assignment Help:

GASES

  • There are 4 gases in the protoplasm which remain dissolved in its free water.
  • These 4 gases are follows-

                 CO   >  O2 > N2  > H2

  • COis used in biosynthesis of urea.
  • COhelps in the dissociation of oxyhaemoglobin.
  • In green cells of protists, algae and plants, COis used in photosynthesis as a raw material for glucose formation.
  • O2 is used in oxidation of substances.
  • Ois a reactive gas. It release energy by oxidation of food, and is vital for life.
  • H2 is used in ETS.
  • N2 is an inert gas, and takes no part in cell reactions.
  • Certain organism can make atmospheric nitrogen a component of organic compounds. This process is called nitrogen fixation and the organism capable of this are termed nitrogen fixing organisms, e.g. Azotobacter, Nostoc, Rhizobium.
  • NHis a toxic compound because of a potentially high pH after reaction with water.
  • In lower animals, it leaves the cell by diffusion.
  • In higher animals, it is changed into urea for elimination by special excretory organs.
  • Nitrosomonas can oxidase NH3 to NO- and Nitrobacter and Penicillium, oxidase NO- to NO-. This process is called nitrification. The organism capable of this process are called nitrifying organism.

Related Discussions:- Gases

Excretion in cockroach, EXCRETIO N IN COCKROACH- Animal is uricotelic....

EXCRETIO N IN COCKROACH- Animal is uricotelic. Excretory organs are malphighian tubules. 60-150 in 6-8 groups. In each group 10-15. Yellow coloured, blind tube, open in gut

Theskin, drawandlabelthemajorendocrineglandsofthehumanbody

drawandlabelthemajorendocrineglandsofthehumanbody

What is single s2, What is Single S 2 In cyanotic TOF, S, consists enti...

What is Single S 2 In cyanotic TOF, S, consists entirely of A, as P, is attenuated by a deformed pulmonary valve when there is valvar steuosis and aorta is placed anteriorly re

Lntracardiac hemodynamics, Provides one dimensional ("ice pick") view of...

Provides one dimensional ("ice pick") view of the heart only provides information with respect to the distance of each object from the transducer and no information in the l

What is ribose, What is ribose Browning in canned fish is commonly asso...

What is ribose Browning in canned fish is commonly associated with ribose. Undesirable colour changes in shellfish during canning often involve metal  ions, for example, the bl

Plant cells differ from animal cells, State the ways in which (a) all...

State the ways in which (a) all plant cells, (b) some plant cells vary from animal cells.    (a) All plant cells have a cellulose cell wall.  (b) Some plant c

What is limnetic zone, Q. What is limnetic zone? The open water zone is...

Q. What is limnetic zone? The open water zone is called the limnetic zone. This represents the zone or depth of the water upto which sunlight can penetrate. Phytoplankton along

Ciguatera fish poisoning, Q. Explain Ciguatera Fish Poisoning? Ciguater...

Q. Explain Ciguatera Fish Poisoning? Ciguatera probably represents the most common cause of poisoning from fish in tropics. Ciguatera comprises over 50% of all reported case

Surface Processes on Earth, Which of the following is not a type of mass mo...

Which of the following is not a type of mass movement that results from the force of gravity? A. Landslide B. Creep C. Deflation D. Mudflow

What are catalysts, Normal 0 false false false EN-IN ...

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

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