TCA cycle

Linkage between glycolysis and TCA cycle is

• Pyruvate

• Lactate

• Acetyl CoA

• None of the above

The compound regenerated in TCA cycle is

• Pyruvate

• Oxaloacetate

• Succinate

• Malic Acid

All statements regarding TCA cycle ate correct except

• Final common pathway of metabolism

• Produces energy

• Amphibolic pathway

• Take place in cytosol fraction of cell

Fluoroacetate is an inhibitor of enzyme

• Enolase

• Aconitase

• Phosphatase

• Pyruvate dehydrogenase

Vitamins involved in TCA cycle are

• Thiamine

• Niacin

• Pantothenic acid

• All of the above

Number of ATPs generated per TCA cycle is

• 7

• 2

• 10

• 12

NADH is generated in all these reactions except

• Isocitrate to Oxalosuccinate

• Alpha – ketoglutarate to succinate

• Succinyl CoA to succinate

• Malate to oxaloacetate

ATPS generated on complete oxidation of one glucose molecule is

• 10

• 32

• 28

• 12

TCA cycle is activated by all except

• Low ATP :ADP ratio

• High NADH :NAD+

• Low NADH :NAD+

• Anoxia

Regulatory enzymes of TCA cycle are except

• Citrate synthase

• Isocitrate DH

• Alpha ketoglutarate DH

• Succinate DH