BIO 242 Lecture Notes - Lecture 35: Alpha Cell, Beta Cell, Glucagon
5 Dec 2016
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Catabolism- breaking down of larger molecules into smaller ones. Anabolism- synthesis of molecules from simpler/smaller ones to larger ones. After eating up to about 4 hours four hours after eating. Pancreas endocrine portion islets of langerhans. Normal blood glucose = 70 mg/dl to 110 mg/dl. Insulin dependent cells need insulin so they can take in glucose. Triggers beta cells to release triggers alpha cells to release. Insulin is the only hormone that decreases glucagon increases glucose. Promote amino acid uptake by cells -promotes protein breakdown into. Promotes glucose uptake by cells -promotes glycogen breakdown into glucose. Promotes glucose storage as glycogen -inhibits glycogen storage. Promotes fatty acid uptake by cells -promotes triglycerides breakdown. Promotes fat storage as triglycerides -inhibits fat storage. Summary of absorptive state- promotes storage of biomolecules, inhibits breakdown. Summary of postabsorptive state- promotes breakdown of biomolecules, inhibits storage. Insulin dependent cells that do not need insulin to take glucose are:
