What is gluconeogenesis? Highlight its significance giving any two examples

Gluconeogenesis (i.e synthesis of new glucose) is the synthesis of carbohydrate from non-carbohydrate source. The significance of  gluconeogenesis include: (any two of the following)

During starvation or  during periods of limited carbohydrate intake, when the levels of liver glycogen are low, gluconeogenesis is important in maintaining adequate blood sugar concentration since a continual supply of glucose in  necessary as'a source of energy for the nervous system and the erythrocytes.

Even when most of  the energy requirement of  the organism is met by  thesupply  of fat, there is always a certain basal requirement for glucose which  is provided by gluconeogenesis.