Carbohydrate Metabolism: Glycolysis and Gluconeogenesis

What is the enzyme used in converting Phosphoenolpyruvate (PEP) to pyruvate?

• hexokinase

• phosphoglycerate kinase

• pyruvate kinase

• lactate dehydrogenase

In the anaerobic processes of glycolysis, which of the following enzymes is involved?

• hexokinase

• lactate dehydrogenase

• pyruvate kinase

• phosphoglycerate kinase

Tags

NGSS.HS-LS2-3

How many ATPs are produced by the Kreb's Cycle?

• 2

• 10

• 20

• 30

Tags

NGSS.HS-LS1-7

Gluconeogenesis happens when a person is in a

• well-fed state

• fiesta party

• fasting state

Gluconeogenesis happens in

• cytoplasm

• mitochondria

• both cytoplasm and the mitochondria

• cell membrane

Which enzyme is used to convert pyruvate back into phosphoenolpyruvate?

• fructose-1,6-bisphosphatase

• pyruvate carboxylase

• glucose-6-phosphatase

• none of the above

Which enzyme is used to convert pyruvate to oxaloacetate?

• fructose-1,6-bisphosphatase

• pyruvate carboxylase

• glucose-6-phosphatase

• none of the above

During starved state and in the absence of insulin, what happens in the brain?

• hexokinases are triggered to act upon glucose

• lactic acid is produced from anaerobic respiration

• ketones are produced from the stacking of acetyl-CoA

• isocitrate is converted to alpha-ketoglutarate, which proceeds to the pentose pathway

The following are main enzymes in gluconeogenesis except

• pyruvate carboxylase

• PEP carboxykinase

• pancreatic lipase

• glucose-6-phosphatase

Glycogenesis happens when a person is in a

• well-fed state

• after a whole day of sitting in a lab class

• fasting state