Homeostatic Control of Blood Glucose Levels (Grade 11 NSC Matric Life Sciences): Flashcards
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Definition of homeostasis
Definition of homeostasis
Maintaining stable internal conditions despite external changes
Function of insulin
Function of insulin
Lowers blood glucose by converting glucose to glycogen
Function of glucagon
Function of glucagon
Raises blood glucose by converting glycogen to glucose
Glycogen
Glycogen
Stored form of glucose in liver and muscle cells
Role of pancreas in blood glucose regulation
Role of pancreas in blood glucose regulation
Monitoring centre for blood glucose levels
Effect of low blood glucose
Effect of low blood glucose
Cells can't release enough energy, body can't function properly
Effect of high blood glucose
Effect of high blood glucose
Water drawn out of cells into bloodstream, causes dehydration
Cause of Type 1 diabetes
Cause of Type 1 diabetes
Inherited disorder or loss of insulin-producing cells
Cause of Type 2 diabetes
Cause of Type 2 diabetes
Insulin resistance - body doesn't respond properly to insulin
Negative feedback mechanism
Negative feedback mechanism
Process that detects changes and acts to restore balance