The false statement about the citric acid cycle is

A、Decarboxylation occurs twice per cycle.

B、Each cycle oxidizes one molecule of acetyl CoA.

C、4 NADH+H+are produced per cycle.

D、Acetyl CoA is first condensed with oxaloacetate to form citrate.

A、citric acid

B、oxaloacetic acid

C、CO2 and H2O

D、oxaloacetic acid and CO2

E、CO2 and 4 reduction equivalents

A、existing in various cells

B、The contents of 2,3-BPG are high in red blood cells.

C、2,3-BPG in erythrocytes lower hemoglobin affinity for oxygen.

D、In the same PO2, O2 released by Hb increases with the increase of 2,3-BPG concentration.

A、synthesized from cholesterol in the liver

B、inhibit the formation of cholesterol stones

C、metabolites of bile pigments

D、reabsorbed by enterohepatic circulation

A、provide blood glucose

B、promote glucose consumption in muscle cells

C、Gluconeogenesis is an important way to replenish or restore glycogen reserve in liver

D、The enhancement of renal gluconeogenesis is beneficial to maintain the acid-base balance.

A、When doing horse stance, you can make your toes outward based on your condition so as to squat deeper.

B、The horse stance can be raised slightly according to its bearing capacity

C、When doing the horse stance, you need to keep the toe forward or slightly inward

D、The answers all above are right..

A、The liver can produce ketone bodies, but cannot oxidize them.

B、The main components are acetoacetate, β-hydroxybutyrate and acetone.

C、The brain can use more ketone bodies during long term starvation.

D、The materials for ketone bodies synthesis are acetyl CoAs.

E、Ketone bodies are produced only under pathological conditions.

B、PushtheparallelingoffBbuttondirect/

C、TransfertheloadandthenCperformtheparallelingoff

Operation

D、Donothingbutiustwaitforparallelingoff

A、Person who has possible diseases can be found in a healthy group

B、Can find the high risk population

C、Separate patients and non-patients clearly

D、Understand the natural history of the disease

A、Punch the fist to the apex, and rotate the arm inward till the thumb web down.

B、The four fingers are grasped into a fist when making a fist and the thumb is held on the second knuckle of the middle finger and the index finger.

C、The thumb is buckled in the palm of the hand when making a fist and the fingertip is pinched at the root of the ring finger.

D、None of the above is true.