CHEM 160 Chapter 17

-- Primary fuel of the brain and red blood cells

An average human requires ___ g of glucose a day

___% of this daily requirement is consumed by the brain

• 25%

• 50%

• 75%

• 100%

During prolong starvation or fasting, _____ must be synthesized from non-carbohydrate precursors

-- Synthesis of glucose from non-carbohydrate precursors

-- Occurs when glycogen reserves are already depleted

Ex. pyruvate, lactate, glycerol, some amino acids, TCA cycle intermediates

Gluconeogenesis is the exact reverse of glycolysis

• True

• False

-- Enzymes that catalyze the reversible steps of glycolysis and gluconeogenesis are the same

• True

• False

Gluconeogenesis differs in the irreversible steps of glycolysis

• True

• False

Major site of gluconeogenesis:

-- _______

-- Also occurs in the cortex of the kidney