Carbohydrates Flashcards
(30 cards)
Primary energy source stored primarily as
glycogen
Disease states involved
hyperglycemia and hypoglycemia
Contain ____ with ___functional groups
C, H, and O (Cx (H20)y C=O and –OH
Metabolism of glucose to lactate or pyruvate
for production of energy
Glycolysis
Formation of glucose-6-phosphate from non
carbohydrate source
Gluconeogenesis
Breakdown of glycogen to glucose for use as
energy
Glycogenolysis
Conversion of glucose to glycogen for storage
Glycogenesis
Conversion of carbohydrates to fatty acids
Lipogenesis
Decomposition of fat
Lipolysis
Metabolism of glucose to lactate or
pyruvate for production of energy
Glycolysis
EMP Pathway
Glucose –Insulin ATP +lactate/pyruvate
Glycolysis
EMP Pathway
Formation of G-6-P from non
carbohydrate source
Gluconeogenesis
Fats (ketone bodies), Protein (urea nitrogen)
Gluconeogenesis
Conversion of glucose to glycogen
Glycogenesis
Glucose –Insulin Glycogen
Glycogenesis
Breakdown of glycogen to G-6-P
Glycogen –Glucagon Glucose
Glycogenolysis
Insulin (Hypoglycemic agent)
decreasing ↓ glucose
syn from the β cells of the islets of Langerhan
↑ glycogenesis, glycolysis, lipogenesis; and ↓ glycogenolysis.
Glucagon (hyperglycemic agent)
Primary hormone responsible increasing blood glucose
Synthesized by the α cells of the islets of Langerhan (pancreas)
↑ glycogenolysis and gluconeogenesis.
Epinephrine
Produced by the adrenal medulla, ↑ blood glucose
Released during times of physical and emotional stress
Inhibits insulin secretion, ↑ glycogenolysis and lipolysis
Cortisol
Produced by the adrenal cortex, ↑ plasma glucose
↓ intestinal entry of glucose into the cell, ↑ gluconeogenesis, glycogenolysis and lipolysis
Growth hormone
Produced by the anterior pituitary gland; ↑ plasma glucose
↓ glucose entry to cells, ↑ glycolysis
Thyroxine
Produced by the thyroid gland; ↑ plasma glucose
↑ glycogenolysis, gluconeogenesis and glucose intestinal absorption
Somastostatin
Produced by the Delta cells of the islet of Langerhans in the pancreas and hypothalamus
↑ plasma glucose by inhibition of insulin, glucagon, GH, etc.
Metabolic disease characterized by hyperglycemia resulting from defects in insulin secretion, insulin action or both
Diabetes Mellitus