CAS BI 315 Lecture Notes - Lecture 2: Dehydration Reaction, Hyperthyroidism, Disaccharide

• School: Boston University
• Department: Biology
• Course: CAS BI 315
• Professor: Eric Widmaier

Document Summary

The integrating center determines that her glucose level has deviated from the setpoint, so a signal is sent through an efferent pathway to the liver. Afferent pathway: sends a signal to the integrating center. Efferent pathway: sends a signal from the integrating center in order to bring the level back to the setpoint. Macromolecules: food you eat provides macromolecules to provide energy used to make atp, which is used to maintain homeostasis: carbohydrates, lipids, and proteins, carbohydrates: include c,h, and o; water soluble, yield energy, hydrophilic/polar. Hyperthyroidism: thyroid hormone turns on too many na/k atp-ases, and the concentration of atp decreases, so glucose is burned faster, which makes the person feel warm and lose weight. Hypothyroidism: thyroid hormone levels are too low. Na/k atp-ases are turned off too much, atp concentration increases, less glucose is burned, which makes the person feel cold and gain weight.