PPT-B5 – Homeostasis and Response

Why are we learning this The ability to respond to the world around you is the key to survival We will learn about the need for awareness of the conditions outside and inside your body to coordinate your responses and maintain a stable environment for your cells to function . 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. . ... THE MAINTENANCE OF STATIC OR CONSTANT CONDITIONS IN THE INTERNAL ENVIRONMENT .... External Environment. External Environment. External Environment. External Environment. Internal Environment. External Environment. 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. 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 . Tissues. Figure 32.2. 4 major types:. Epithelial. – found on outside of the body and lining organs and cavities.. Muscle. – 3 types. Cardiac – heart tissue, involuntary. Smooth – involuntary actions in body, organs, blood vessels. 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.