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Bio 202 Exam 1 Complete Test Paper Questions And Correct Answers

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BIO 202 EXAM 1 COMPLETE TEST PAPER QUESTIONS AND CORRECT ANSWERS

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BIO 202 EXAM 1 COMPLETE TEST PAPER
QUESTIONS AND CORRECT ANSWERS

◉ 2. What separates the inside and outside of a cell?
Answer: → Plasma membrane


◉ 3. What is ICF?
Answer: → Intracellular fluid (fluid inside the cell)


◉ 4. What is ECF?
Answer: → Extracellular fluid (fluid outside the cell)


◉ 5. What percentage of body fluid is ICF?
Answer: → About 2/3 (~65%)


◉ 6. What percentage of body fluid is ECF?
Answer: → About 1/3 (~35%)


◉ 7. What are metabolites?
Answer: → Sugars, lipids, and amino acids that enter cells for ATP
production

, ◉ 8. What waste products must leave the cell?
Answer: → CO₂, water, and heat


◉ 9. Define homeostasis.
Answer: → Dynamic constancy of the internal environment


◉ 10. The internal environment refers to what?
Answer: → ECF


◉ 11. What is negative feedback?
Answer: → A mechanism that returns a variable to its set point


◉ 12. What is a set point?
Answer: → The normal average value of a variable


◉ 13. What detects change in a feedback loop?
Answer: → Receptor (sensor)


◉ 14. What processes information in a feedback loop?
Answer: → Integrating center (controller)

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