1 / 6

UNDERSTANDING FEEDBACK MECHANISMS and HOMEOSTASIS

UNDERSTANDING FEEDBACK MECHANISMS and HOMEOSTASIS. BY: Coach Lee. What is homeostasis?. maintenance of a stable internal state within an organism. What is feedback?. Is a mechanism that will maintain homeostasis. Example of feedback mechanism in animals. Temperature homeostasis:

livi
Télécharger la présentation

UNDERSTANDING FEEDBACK MECHANISMS and HOMEOSTASIS

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. UNDERSTANDING FEEDBACK MECHANISMS and HOMEOSTASIS BY: Coach Lee

  2. What is homeostasis? • maintenance of a stable internal state within an organism.

  3. What is feedback? • Is a mechanism that will maintain homeostasis.

  4. Example of feedback mechanism in animals. • Temperature homeostasis: • Your body gets hot, so we sweat • Your body sweats, it evaporates and we cool back off. • Heart rate homeostasis: • You increase the rate of excerisce • Then your heart rate increases to compensate for necessary oxygen levels and blood flow

  5. Example of feedback mechanisms in plants: • plants need to regulate water loss and carbon dioxide intake for photosynthesis and other life activities

  6. Feedback in plants • when plants do not keep enough water in their cells, they wilt and die • guard cells: open and close the stomate • the ability of the guard cell to close during periods of limited water availability for the plant allows the plant to maintain water homeostasis

More Related