BIOCHEMISTRY Flashcards
1
Q
What is gluconeogenesis?
A
Metabolic process by which organisms produce sugars (e.g glucose) from catabolic reactions from non-carbohydrate precursors.
2
Q
What substances create glucose in gluconeogenesis?
A
Amino acids, fat
3
Q
Why does gluconeogenesis occur?
A
In order to maintain the blood glucose levels. Takes place in the liver & kidneys.. It occurs when we fast for example, the gluconeogenic enzymes are expressed during fasting e.g pyruvate carboxylase
4
Q
What is involved in the conversion of pyruvate to glucose?
A
4 ATP, 2 GTP
4 ADP, 2 GDP
(extra energy is needed - reactions are not energetically favourable)
