PHA LEARNING PRIMER · 01.2
Explain how the body regulates change
Focus on oxygen, nutrients including water, temperature, and pressure. Use Figure 1.10 to trace a feedback loop and Figure 1.11 to contrast negative and positive feedback. Specific survival-time estimates are not learning targets.
Focus for this topic
- Connect oxygen, nutrients, temperature, and pressure to the conditions cells need.
- Follow stimulus, receptor, control center, effector, and response in a feedback loop.
- Distinguish negative feedback from positive feedback.
Recommended study time: 35–50 minutes, including the lecture and reading. Objectives: AP-M01-02 and AP-M01-04.
Your study sequence
Use Next to watch lecture 01.2. Then read the PHA Learning Guide and OpenStax sections 1.4–1.5. Follow the feedback-loop examples and connect each response to the variable being regulated. Planning estimates are flexible; work at your own pace.
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Tags
#Lessons,#Anatomy and Physiology