6 Questions
Which one of these is the correct order of the major levels of organization in the body, from simplest to most complex?
Atoms, molecules, organelles, cells, tissues, organs, organ systems, human organism
Which one of these best defines homeostasis?
A relatively constant internal environment even if the external environment changes
Which one of these best describes a positive feedback loop?
A loop that amplifies the result of an action to make it occur more quickly
Which one of these components of a negative feedback loop detects changes in the internal environment?
Receptor
Which one of these components of a negative feedback loop receives signals from the receptor and determines the appropriate response?
Control center
Which one of these components of a negative feedback loop carries out the response to restore homeostasis?
Effector
Study Notes
Levels of Organization
- The correct order of the major levels of organization in the body, from simplest to most complex, is: cell, tissue, organ, organ system, organism
Homeostasis
- Homeostasis is the ability of the body to maintain a stable internal environment despite changes in the external environment
Positive Feedback Loop
- A positive feedback loop is a self-reinforcing cycle where the response to a stimulus enhances or amplifies the original stimulus, leading to an exponential increase in the response
Negative Feedback Loop Components
Receptor
- The receptor detects changes in the internal environment, monitoring factors such as temperature, pH, or blood glucose levels
Control Center
- The control center receives signals from the receptor and determines the appropriate response to restore homeostasis
Effector
- The effector carries out the response to restore homeostasis, bringing the internal environment back to a stable state
Test your knowledge of the levels of organization in the human body and the concept of homeostasis with this quiz. Explore the major components of the body, from atoms to organ systems, and learn about the importance of maintaining a stable internal environment. Discover how negative feedback loops regulate bodily functions and challenge yourself by identifying examples of positive feedback loops.
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