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Questions and Answers
Which body system performs its function to maintain homeostasis by nervous mechanism?
Which body system performs its function to maintain homeostasis by nervous mechanism?
- Respiratory system
- Circulatory system
- Nervous system (correct)
- Endocrine system
What is the characteristic of negative feedback in homeostasis?
What is the characteristic of negative feedback in homeostasis?
- The response involves hormonal regulation
- The response is in the same direction of the stimulus
- The response is rapid
- The response is opposite to the stimulus (correct)
What is the effect of a change in homeostasis beyond the narrow range?
What is the effect of a change in homeostasis beyond the narrow range?
- The body becomes more efficient
- The cell function remains constant
- The body adapts easily
- The cell function is greatly affected (correct)
Which feedback mechanism keeps the system constant by a response in the same direction of the stimulus?
Which feedback mechanism keeps the system constant by a response in the same direction of the stimulus?
How are body functions regulated by the endocrine system?
How are body functions regulated by the endocrine system?
During transcription, which DNA strand is copied by RNA polymerase?
During transcription, which DNA strand is copied by RNA polymerase?
What is the direction of RNA product synthesis during transcription?
What is the direction of RNA product synthesis during transcription?
What is the base sequence of a gene conventionally given from?
What is the base sequence of a gene conventionally given from?
How are the locations of important bases in a gene region identified?
How are the locations of important bases in a gene region identified?
When does transcription end?
When does transcription end?
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Study Notes
Physiology
- Physiology is the science of the function of living systems, including organisms, organ systems, organs, cells, and bio-molecules.
- It involves the study of chemical or physical functions that exist in a living system.
Homeostasis
- Homeostasis refers to the mechanisms that maintain a constant internal environment.
- It is crucial for the normal functioning of cells, which lie in the internal environment.
Importance of Homeostasis
- Homeostasis is essential for maintaining normal functions of cells, including:
- Regulating body water
- Regulating body temperature
- Regulating arterial blood pressure
Objectives
- Define homeostasis and its importance to the living organism.
- Describe the feedback mechanisms and give examples for each in the body.
- Identify the body's main body fluid compartments.
- Explain the principles of measurements of body fluid compartments.
- Describe the functions of water.
- Describe the regulation of fluid and electrolyte balance.
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