CARBOHYDRATES Flashcards
These are hydrates of aldehyde or ketone derivatives based on the location of the CO functional group
Carbohydrates
4 types of Carbohydrates
Monosaccharides
Disaccharides
Oligosaccharides
Polysaccharides
The simplest carbohydrates
Glycol aldehyde
Complete oxidation of glucose yields …
Carbon dioxide, Water, and Adenosine Triphosphate
Reducing sugars are
Glucose
Maltose
Fructose
Lactose
Galactose
The most common non-reducing sugar
Sucrose
It is both an endocrine and exocrine organ
Pancreas
A primary hormone responsible for the entry of glucose into the cell
Insulin
Insulin is synthesized in …
B-cells of the islet of Langerhans of the pancreas
It is normally released when the glucose level is high
Insulin
This is a hypoglycemic agent
Insulin
Serum insulin may be falsely low due …
To the presence of hemolysis
It is a hyperglycemic agent
Glucagon
Glucagon synthesized in
Alpha cell of the islets of Langerhans in the pancreas
Fasting plasma glucagon is normally at
25-50 pg/mL
Other hormones that increase glucose concentration
Cortisol and corticosteroids
Catecholamines
Growth hormones
Thyroid hormones
Adrenocorticotropic hormone
Somatostatin
These are secreted by the zona fasciculata and zona reticularis of the adrenal cortex
Cortisol and corticosteroids
It increases the intestinal entry of glucose into the cell
Cortisol and corticosteroids
These are released from the chromaffin cells of the adrenal medulla and inhibit insulin secretion
Catecholamines
It is secreted by the anterior pituitary gland
Growth hormone
Promotes glycogenesis, gluconeogenesis and intestinal absorption of glucose
Thyroid hormone
It is produces by the delta cells of the islet of Langerhans
Somatostatin
It is toxic to beta cell function and impairs insulin secretion
Hyperglycemia
FBS of Diabetes Mellitus (positive)
126 mg/dl
It results from an imbalance between glucose utilization and production
Hypoglycemia
Criteria of hypoglycemia
Whipple’s Triad
(Low blood glucose concentration)