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katrina pegues

SCI221-04 Lesson 1

QuestionAnswer
What is Homeostasis the body's ability to maintain a stable internal environment, or equilibrium, in response to external changes.
homeostasis positive feedback a feedback loop where a change in a physiological variable triggers a response that further amplifies that change, moving the system further away from its set point
homeostasis negative feedback a control mechanism that helps maintain homeostasis, or a constant internal environment.
Disorders related to Hemostasis Diabetes, Dehydration, Hyperthermia/Hypothermia
What are some disruptions in Homeostasis that can cause Diabetes disorder the body's ability to regulate blood glucose becomes impaired.
What are some disruptions in Homeostasis that can cause Dehydration disorder imbalance in water and electrolyte levels, that can lead to impaired cellular function and organ failure.
What are some disruptions in Homeostasis that can cause Hyperthermia/Hypothermia disorder When the body's temperature regulation mechanisms fail, leading to dangerously high or low body temperatures.
What are the main components of the Homeostatic system sensors, integrators, effectors
receptor detects changes
Control center interprets the change and initiates a response
Effector carries out the response to restore balance
What systems are involved in homeostasis? Nervous system, Endocrine system, Respiratory system, Excretory system, Circulatory system
Example of a negative feedback loop? When body temperature rises, sweat is produced to cool it down. When it falls, shivering generates heat
Function of nucleic acids? Store and transmit genetic information (DNA & RNA
Examples of proteins? Hemoglobin, enzymes, antibodies, keratin
What is an enzyme? A protein that speeds up chemical reactions by lowering activation energy
Created by: kpegues46
 

 



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