Biomedical Science

Question 1

1A pathogen is

Easy

A. a white blood cell B. a microorganism that causes disease C. a vaccine D. a medicine

Question 2

2Herd immunity occurs when

Easy

A. one person is vaccinated B. animals are vaccinated only C. no one is immune D. enough people are immune that disease spread is reduced

Question 3

3Antibodies are produced by

Easy

A. platelets B. red blood cells C. B lymphocytes D. neurones

Question 4

4Tuberculosis is caused by a

Easy

A. fungus B. protozoan C. virus D. bacterium

Question 5

5HIV mainly attacks

Easy

A. platelets B. CD4 T-helper cells C. bone cells D. red blood cells

Question 6

6Malaria is diagnosed in the laboratory mainly by

Easy

A. X-rays B. measuring height C. examining blood films or rapid diagnostic tests D. urine tests only

Question 7

7A vaccine works by

Easy

A. stimulating the immune system to make memory cells against a pathogen B. replacing lost blood C. killing all the bacteria in the body D. lowering body temperature

Question 8

8Gram-positive bacteria stain purple because they have

Hard

A. no cell wall B. a thick peptidoglycan cell wall C. a thin wall with outer membrane D. chloroplasts

Question 9

9Antibiotics are effective against

Easy

A. bacteria B. viruses C. genetic disorders D. all diseases

Question 10

10Tuberculosis is caused by

Easy

A. HIV B. Mycobacterium tuberculosis, a bacterium C. Plasmodium D. a worm