PPT-Unit 3: Homeostasis

Topic Glucose Regulation Aim How does your body regulate glucose level in the blood stream Quick Review lets see if you remember Why is glucose important . AP Biology. Homeostasis and the Environment. So far, we have looked at how homeostasis controls and regulates our bodies (removal of nitrogenous waste, immune system). . While these are good examples of homeostasis, they are at an organism or cellular level. . Homeostasis. Homeostasis is the maintenance of a . stable internal environment.. Homeostasis. Homeostasis represents a state of . DYNAMIC EQUILIBRIUM.. Homeostasis. Homeostasis represents a state of . The Human Body. An IRSC . L. ive Virtual Lesson. By: Diana Lenartiene, Ed. S. . The biological definition of homeostasis is “the tendency of an organism or cell to regulate its internal environment and maintain equilibrium, usually by a system of feedback controls, so as to stabilize health and functioning”. Generally, the body is in homeostasis when it’s needs are met and it’s functioning properly.. 12.1. Learning Objectives. Define homeostasis. Explain the importance of homeostasis. Describe how control mechanisms work. Explain how control mechanisms are co-ordinated. Success Criteria. You can define homeostasis and suggest what things need to be maintained in the body. Halvor M. Halvorson. 1. , Chris L. Fuller. 2. , Sally A. Entrekin. 3. , J. Thad Scott. 4. , and Michelle A. Evans-White. 1. 1. University of Arkansas Department of Biological Sciences. 2. University of Central Arkansas Department of Biology. The Human Body. An IRSC . L. ive Virtual Lesson. By: Diana Lenartiene, Ed. S. . The biological definition of homeostasis is “the tendency of an organism or cell to regulate its internal environment and maintain equilibrium, usually by a system of feedback controls, so as to stabilize health and functioning”. Generally, the body is in homeostasis when it’s needs are met and it’s functioning properly.. homeostasis. . Cells have different functions.. Homeostasis = stable environment in your body; balance. Your body maintains its homeostasis even if outside conditions are changing. . Levels of Organization. Cells Homeostasis Cells work together to maintain homeostasis . Cells have different functions. Homeostasis = stable environment in your body; balance Your body maintains its homeostasis even if outside conditions are changing. Thermostat’s set point is 75ºF. Inside temperature =. heat. 72ºF. 73ºF. 74ºF. 75ºF. Definition. : The body maintains a constant internal environment. Importance. : Body processes work best in specific conditions. CASE DESCRIPTION. . ESRD patients who undergo a major gastro-intestinal surgery can present with dysregulation of their potassium homeostasis mechanism leading to hyperkalemia. Patiromer (Veltassa) and sodium zirconium cyclosilicate (Lokelma) are two approved potassium binders used for the treatment of hyperkalemia in ESRD patients. stable internal environment.. Homeostasis. Homeostasis represents a state of . DYNAMIC EQUILIBRIUM.. Homeostasis. Homeostasis represents a state of . DYNAMIC EQUILIBRIUM.. . This means that adjustments are always being made to keep the variables within an . . Stasis. = . standing. Greek for “. standing still. ”. Homeostasis is…. “the state of balance within our bodies”. Living organisms require a balance of certain variables within their bodies to stay alive. . Kong, Q. . et al.. . “The Arabidopsis WRINKLED1 transcription factor affects . auxin. homeostasis in roots. .. ”. . Journal of Experimental Botany . (2017) . [DOI. :. . 10.1093/. jxb. /erx275. Homeostasis –. Necessary Life Functions. What defines all living organisms?. Maintain. . boundaries. Movement. Locomotion. Movement of substances. Responsiveness. Ability to sense changes & react.