Feedback mechanism of metabolism (Positive and Negative feedback mechanism)

Feedback mechanism of metabolism (Positive and Negative feedback mechanism)
How Positive and Negative feedback mechanism maintained homeostasis in body

1. Feedback Mechanism Of Metabolism
BY:
RASHID KHAN
F2017067044

2. CONTENTS
Introduction
History
Definition
Feedback Mechanisms
Positive Feedback Mechanism
Negative Feedback Mechanism
Conculation

3. Introduction
Metabolismisasetofchemicalreactionsthat
interconnectinaseriesofpathways.Itisabalancing
actbetweenthebuildingandbreakdownofmolecules
inthebody.
Type of metabolism
Anabolism
Catabolism

4. History
ThetermmetabolismisderivedfromtheGreek
Metabolismos."Metabolismos"for"change",or"overthrow".
Feedback Mechanisms
Whydoorganismsusethefeedbackmechanism?
Thebodyusesfeedbackmechanismstomonitorandmaintainour
physiologicalactivities.Basedontheoutcome,itdecideswhetherit
shouldcontinueperformingaspecificaction,orifitshouldstopthe
action.Thisiscalledafeedbackmechanism.
Doplantsusethefeedbackmechanisms?

5. Types Of Feedback Mechanisms
Positive Feedback Mechanism
Negative Feedback Mechanism
Positive Feedback Mechanism
Inapositivefeedbacksystem,theoutputenhancestheoriginalstimulus.A
positivefeedbackisonethatwhichrespondstotheperturbationinthesame
directionastheperturbation.Ittendstoinitiateoraccelerateabiologicalprocess.
Howbodymaintainhomeostasis?

6. Examples
Onecommonexampleofa
positivefeedbacksystemin
livingthingsisbloodclotting.
Whenskiniscutandablood
vesselexperiencesisblood
clotting.
Blood clotting

7. Digestion
Onecommonexample
ofapositivefeedback
systeminlivingthingsis
digestion

8. Thesucklingactionofan
infantproducesprolactin,
whichleadstomilk
production
Lactation

9. Child Birth
Positivefeedback
mechanismduring
childbirthin
humans

10. Negative Feedback Mechanism
In negative feedback, the body works to correct a deviation from a set point, it
tries to get back to normal.
Examples
Onecommonexampleofanegative
feedbacksysteminlivingthingsis
Increaseinbodytemperature

11. Howbodymaintainour
bloodsugarlevelifit
increaseordecreaseby
negative feedback
mechanism?
Blood Sugar Level

12. Howbodymaintain
ourBloodpressure
ifitincreaseor
decreasebyfeedback
mechanism?
Blood Pressure

13. Sensation
Howbody
maintainour
Sensation
byfeedback
mechanism?

14. Metabolicpathwaysareaseriesofreactionscatalyzedbymultipleenzymes.
Feedbackinhibition,wheretheendproductofthepathwayinhibitsanupstream
process,isanimportantregulatorymechanismincells
Conclusion
References
https://www.scienceabc.com/humans/feedback-mechanism-what-are-positive-negative-feedback-
mechanisms.html
https://bio.libretexts.org/Bookshelves/Human_Biology/Book%3A_Human_Biology_(Wakim_and_Grewal)/1
0%3A_Introduction_to_the_Human_Body/10.7%3A_Homeostasis_and_Feedback
https://biologydictionary.net/positive-feedback/
https://openoregon.pressbooks.pub/mhccmajorsbio/chapter/6-7-feedback-inhibition-in-metabolic-
pathways/#:~:text=Principles%20of%20Biology-
,Feedback%20Inhibition%20in%20Metabolic%20Pathways,enzyme%20function%20in%20many%20ways.&te
xt=Figure%2011%20Metabolic%20pathways%20are,important%20regulatory%20mechanism%20in%20cells.