BILD 2 Lecture Notes - Lecture 13: Nitrifying Bacteria, Nitrogenase, Blood Sugar
17 Mar 2018
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Document Summary
Plant transport: cotransporters, role of bacteria in plant nitrogen intake, nitrogen fixation, n-fixing bacteria / nitrogenase: Carbon: us oil consumption: 7. 3 billion barrels/year, hormone action 1, endocrine glands. Secretion via exocytosis (vesicle secretion) of hormones into circulatory system: exocrine glands. Secretion via ducts; sweat, mucus, digestive enzymes, non-hormones: tropic hormone, causes release of another hormone elsewhere, pancreas. Functions as exocrine and endocrine gland: exocrine function: digestive enzymes, endocrine function: insulin and glucagon. Sense atp content in cell, and shuts off channel when atp is too high. Voltage-dependent calcium channels cause vesicles to release insulin. Cell continues to fire action potentials: glucagon secreted from alpha cells in pancreas. Secreted at low glucose levels in blood: causes opposite effects of insulin. Increase in blood glucose levels (glycogen -> glucose) (fat -> glucose: hypothalamus gland. Stored in posterior pituitary gland: releases factors causing hormone secretion by anterior pituitary, anterior pituitary, growth steroid hormone (gh), fsh (male & female reproduction),
