The correct options are
A Hyperglycemia is a condition of increased blood sugar
B Hypoglycemia is a condition of decreased blood sugar
C Diabetes mellitus is a condition of hypergycemia
D Glycogenesis can lead to hypoglycemia
Hyperglycemia is a condition of increased blood sugar. The hormone glucagon initiates glycogenolysis leading to hyperglycemia. In addition, this hormone stimulates the process of gluconeogenesis which also contributes to hyperglycemia. Hypoglycemia is a state of reduced blood glucose. Insulin lowers blood glucose levels by increasing uptake of glucose in cells. Insulin also stimulates conversion of glucose to glycogen (glycogenesis) in the target thus lowering blood glucose levels. Prolonged hyperglycemia leads to a complex disorder called diabetes mellitus.