Negative Feedback: Blood Glucose Levels (Grade 12 NSC Matric Life Sciences): Flashcards
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Glucose's role in cells
Glucose's role in cells
Primary fuel for cellular respiration
Pancreas role in glucose regulation
Pancreas role in glucose regulation
Control centre; detects changes and releases hormones
Islets of Langerhans
Islets of Langerhans
Clusters of cells in pancreas with alpha and beta cells
Alpha cells produce
Alpha cells produce
Glucagon
Beta cells produce
Beta cells produce
Insulin
Negative feedback definition
Negative feedback definition
Body responds to increase by decreasing & vice versa
Insulin's effect on blood glucose
Insulin's effect on blood glucose
Lowers it; promotes glucose uptake & storage as glycogen
Glucagon's effect on blood glucose
Glucagon's effect on blood glucose
Raises it; triggers breakdown of glycogen to glucose
Glycogen
Glycogen
Storage form of carbohydrate in liver
Main effector organ for glucose control
Main effector organ for glucose control
Liver