Author: qnasb27

All of the following organisms cause a clinical effect via the production of an exotoxin except: A. Clostridium tetani. B. Staphylococcus aureus. C. Escherichia coli. D. Pseudomonas aerugenosa. E. Vibrio...

Mumps virus is a - A. adenovirus. B. herpes virus. C. paramyxovirus. D. pox virus. E. picornavirus.

With Salmonella infection: A. Salmonella typhi infection commonly by uncooked chicken B. related to bubonic plague C. typhoid fever is self limiting, short lived illness D. carrier state for Salmonella...

The virulence of Mycobacterium Tuberculosis is related to: A. the production of exotoxin B. the production of endotoxin C. its ability to induce delayed type hypersensitivity D. its ability to escape killing...

A substance that is not known to accumulate intracellularly is A. melanin. B. haemosiderin. C. tattoo ink. D. pus. E. lipofuscin

Cell adhesion molecules A. includes selectins. B. assist in white cell pavementing. C. involve endothelium. D. involve platelets E. all of the above

Regarding the cellular mechanisms of vascular leakage, which of the following is INCORRECT A. the ‘immediate transient response’ only occurs in venules of 20-60 µm diameter. B. sunburn can cause a...

Concerning vascular leakage with acute inflammation A. endothelial cell contraction preferentially occurs in arterioles 20-60 µm in diameter. B. tumour necrosis factor (TNF) affects leakage by direct...

Leukocyte adhesion with transmigration involves all of the following EXCEPT A. migration of leukocytes as a result of stasis of blood flow in the microvasculature. B. interaction of integrins with immunoglobulin...

In most instances, the cause of congenital heart disease is:A. rubellaB. geneticC. congenital syphilis D. unknown

α-D-glucose and β -D-glucose are (A) Stereoisomers (B) Epimers (C) Anomers (D) Keto-aldo pairs

Compounds having the same structural formula but differing in spatial configuration are known as (A) Stereoisomers (B) Anomers (C) Optical isomers (D) Epimers

The most important epimer of glucose is (A) Galactose (B) Fructose (C) Arabinose (D) Xylose

The most common cause of pulmonary stenosis is: A. a congenital lesionB. rheumatic endocarditisC. bacterial endocarditisD. carcinoid syndromeE. syphilis

A large ventricular septal defect and congenital obstruction to pulmonary blood flow are characteristic features of A. transposition of the great arteries B. persistent common atrioventricular canal C....

A pentose sugar is (A) Dihydroxyacetone (B) Ribulose (C) Erythrose (D) Glucose

Of these cardiovascular defects, which is usually discovered in childhood: A. atrial septal defect B. bicuspid aortic valve C. mitral valve prolapse (“floppy mitral valve”) D. ventricular septal defect

The pentose sugar present mainly in the heart muscle is (A) Lyxose (B) Ribose (C) Arabinose (D) Xylose

Two sugars which differ from one another only in configuration around a single carbon atom are termed (A) Epimers (B) Anomers (C) Optical isomers (D) Stereoisomers

The most common cause of death in patients with untreated hypertension is:A. malignant nephrosclerosisB. intracerebral hemorrhageC. ruptured berry aneurysm D. congestive heart failure