problem 1) Which one of the following is least likely to give rise to food poisoning?

(a) Cooking and eating a partially defrosted turkey. 

(b) Eating a cooked chicken leg straight from the refrigerator:

(c) Preparing a fresh chicken for the oven and immediately making a lettuce and tomato    salad.

(d) Putting an uncooked chicken on the same plate as some cold ham.

problem 2) Which of the following are not ways in which gonorrhoea and syphilis can be transmitted?

(a) Using a towel that has been used by an infected person.

(b) Touching an infected person.

(c) Kissing an infected person.

(d) Having sexual intercourse with an infected person.

problem 3) How can a baby become infected with (a) gonorrhoea, (b) syphilis?

problem 4) Which one of the following is the most likely size of a virus?

1mm, 0.1 mm, 0.l mm, 0.01 mm, 0.001 mm .

problem 5) A virus consists of a central core of ….. A ….. or ….. B ….. surrounded by a coat made up of  ….. C ….. units. 

problem 6) Which one of the following processes can be carried out by a virus?
respiration, growth, excretion, reproduction

problem 7) Name three diseases caused by viruses.

problem 8) By what method may virus diseases be prevented?

problem 9)(a) Which body cells are attacked by the HIV (AIDS) virus?

(b) What general effect does this have on the body?

problem 10) State three ways by which the AIDS virus might be transmitted from an infected person to a healthy person.