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The anatomical divisions of the small intestine include the:

I jejunum

II ileum

III duodenum

A.

I only

B.

III only

C.

I and II only

D.

II and III only

E.

I, II and III

Which of the following vitamin is the precursor of collagen synthesis?

A.

Vitanin A

B.

Vitamin B

C.

Vitamin C

D.

Vitamin D

E.

Vitamin E

Antioxidants, which mechanistically act as reducing agents, include:

I ascorbic acid

II sodium bisulfite

III citric acid

A.

I only

B.

III only

C.

I and II only

D.

II and III only

E.

I, II and III

Which of the following is an important enzymatic reaction involved in muscular contraction?

A.

Glucose-6-phosphatase reaction

B.

Glycogenolysis

C.

ATP-Creatine phosphokinase reaction

D.

Enolase reaction

E.

Glucogenolysis

Proteins are formed from:

A.

Purines

B.

Carbohydrates

C.

Amino acids

D.

Monosaccharides

E.

Nucleosides

The formation of glucose from non-carbohydrates sources such as lactate and Kreb’s cycle metabolites is an anabolic process called:

A.

Glycogenolysis

B.

Glycolysis

C.

Glycogenesis

D.

Gluconeogenesis

E.

None of the above

In cardiovascular physiology, LaPlace's law relates the tension achieved in a blood vessel wall to:

I the length of the vessel

II the radius of vessel

III the intraluminal pressure

A.

I only

B.

III only

C.

I and II only

D.

II and III only

E.

I, II and III

In which of the following organs or tissues is the action of acetylcholine NOT described as "nicotinic"?

I Motor endplates of skeletal muscle

II Celiac ganglia

III Circular muscles of the iris

A.

I only

B.

III only

C.

I and II only

D.

II and III only

E.

I, II and III

Atropine is the primary example of an important class of muscarinic antagonists which are esters of tropic acid and which contain:

A.

aniline and piperidine rings.

B.

aniline and piperazine rings.

C.

aniline and pyrrolidine rings.

D.

pyrrolidine and piperazine rings.

E.

pyrrolidine and piperidine rings.

Correct statements regarding RNA messenger may include:

A.

Carrier activated aminoacids to the ribosome

B.

Specifies aminoacids sequence templant for protein synthesis

C.

Enable DNA fragments to be joined

D.

Synthesize RNA

E.

Carrier the genetic information for all the other cells