Positive and Negative Feedback Loops

018 - Positive and Negative Feedback Loops

Paul Andersen explains how feedback loops allow living organisms to maintain homeostasis. He uses thermoregulation in mammals to explain how a negative feedback loop functions. He uses fruit ripening to explain how a positive feedback loop functions. He also explains what can happen when a feedback look is altered. Diabetes mellitus is caused by an alteration in the blood glucose feedback loop.

Category:

Education

Tags:

• homeostasis
• feedback loop
• ap biology
• tutorial
• negative feedback
• positive feedback
• thermoregulation
• fruit ripening
• diabetes

[bballpenguin16]

I use hairless cats cuz normal cats are too mainstream

[xxxsofieexxx]

so helpfullll :)!

[princevalantino41162]

Loved this explanation, thanks buddy!

Prince Green UK

[jojomeify]

this was so helpful!! Can you be my animal phys teacher?

[soumyasayujya]

lovely way to explain it tat.....negative feedback is juzt dancin around a point and eventually hit ur target....but positive feedback sees it as a sign....tats meant to be broken.....ooooo lovely.... thanks paul!!!.......

[ScabbyJill]

Thanks, I wish I could use this as a reference :/

[mwalton44444444444]

great sooooo helpful

[minigilly97]

cheers mate very helpful :)

[robanatta]

Great video! Just a word though: type 2 diabetes does NOT have it's roots in "too much fat," as you mentioned. Moreso, it is the type of fat, and with what type of carb, and how much of that carb is consumed, which influences the onset of type 2. Also, minerals such as magnesium and boron help to regulate insulin secretions. Foods like coconut oil help to increase insulin sensitivity, thus reverse harm effects of (really bad sugars) like high-fructose corn syrup (the leading cause of type 2)...

[ANerdGeekDork]

Thank you! I was seriously confused when I looked at what I had to revise for an exam and found positive and negative feedback, but this really helped a lot!

[staceclaudbelle]

Great video, helped heaps.  Thanks so much.

[heybeautifulish]

I LOVE THIS. Thanks a lot!!!!!!!!

[oEmilyThePenguino]

try to get past 30 mph? challenge accepted ;D

[TheJkromer]

Very knowledgable



[97Fuzzy97]

AMAZING!!!!!!!!!!!!!!!!!!!!!!!­!!!!!!!! i espicially liked the bit where you mentioned sugar AND CORN SYRUP. high fuctose corn syrup, or inverted corn syrup, is ten times sweeter than sugar and ten times worse.

[Ztuibyman]

It is helpful, very helpful, thank you!

[TheLoveformankind]

I LOVE U

[Cheyzzzzz]

thanks man!!!

[doyoudaredare]

Love your vids- Ty :)

[MsJanewalee]

Thank You so much - Its really helpful :D 

[PurposeDrivenJourney]

So helpful for my studies thanks =)

[waadalbawardi]

I understand the positive feedback loop but I don't see how it's related to homeostasis?

[phantmenace]

Thank You so much, this vid really helped!

[JaySmith91]

4:20 Erratum 98.6 degrees farenheit. I think insulin was first cultivated using pig pancreas. Keep making these videos, very helpful.