BIO 202 COMPREHENSIVE CERTIFICATION EVALUATION VERIFIED QUESTIONS AND FULL SOLUTIONS

BIO 202 COMPREHENSIVE CERTIFICATION
EVALUATION VERIFIED QUESTIONS AND
FULL SOLUTIONS

●● 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)