BIOM 3200 Midterm: Midterm 1 condensed

• School: University of Guelph
• Department: Biomedical Sciences
• Course: BIOM 3200
• Professor: Tami Martino

Document Summary

Homeostasis process dependent on time regulates water, electrolytes, ph, oxygen / carbon dioxide, temperature sensor -> integrator (brain) -> action (response) study of hormones and their actions. Endocrinology: hormone: chemical released from cell, endocrine gland: tissue which releases hormones without a duct (directly into blood) Hormones: autocrine: acts on cell itself, paracrine: acts on adjacent cell, endocrine: goes into blood stream and acts on far away cell. Example secretory vesicles secretory vesicles secretory vesicles exocytosis diffusion exocytosis diffusion dissolved in plasma bound to carrier proteins dissolved in plasma bound to carrier proteins short insulin long short long estrogen epinephrine thyroxine. Receptors: membrane bound receptors phospholipase c adenylate cyclase, cytoplasm - steroids bound to carrier binds to receptor translocates to nucleus binds to dna acts as transcription factor stimulates transcription produces protein creates response, nucleus - thyroxine. T3 attaches to binding protein produces new mrna creates protein creates response.