Question

1. Escherichia coli is a gram- negative , rod -shaped bacterium whose shape classifies it as a

1. Coccus
2. Vibroid
3. Pleomorphic
4. Bacillus

2.Transplant involving the replacement of a heart valve with a pig heart valve is an example of

            a. an isographt

            b. an intergraft

            c. a Xenograft

            d. an allograft

3. two thirds of the water in humans is contained in this fluid compartment

            a.intracellular

            b. Extracellular

            c. Intercellular

            d. acellular

4. One of the systemic signs of an infection is pyrexia, which is

            a. fever

            b. excessive bleeding

            c. Reddening of the skin

            d. Nausea

5. A group of genes that are responsible for the production of self- antigen is called the

            a. antigen production complex

            b. Major antigen immunity group

            c. self- identification group

            d. Major histocompatibility complex

Answer 1

Ans. 1

E. coli is cylindrical in shape hence classified as Bacillus. Option D is correct.

Ans. 2

It is an example of xenograft because tissue is transplanted form different species. Option C is correct.

Ans. 3

Most of the water in humans is present in extracellular form. As lymph, blood and other body fluids. Option B is correct.

Ans. 4

Pyrexia is the increase in body temprature above normal temprature range. Hence it is the fever state. Option A is correct.

Ans. 5

Major histocompatibility complex is known as HLA(Human Leukocyte Antigen) in humans is responsible for production of self antigen. Option D is correct.