Communicable diseases OCR A A level

Question 1

Below shows a blood smear. Which structure represents a neutrophil?

Accepted Answer

B

Question 2

Which organisms does ringworm affect?

Accepted Answer

Mammals

Question 3

Which of the following roles of antibodies increases the phagocytosis of pathogens?

Accepted Answer

Opsonins, Agglutinins

Question 4

How is TMV spread?

Accepted Answer

Vector - aphids, Direct contact with infected plants

Question 5

What type of pathogen causes late blight?

Accepted Answer

Protoctist

Question 6

Which method should not be used to get rid of late blight?

Accepted Answer

Composting

Question 7

Which of the following identifies the region that allows the distance between the antibody binding sites to vary?

Accepted Answer

C

Question 8

Which of the following describes an autoimmune disease?

Accepted Answer

A disease which an individual's own body cells are antigenic

Question 9

Which statement is true about the transmission of TB?

Accepted Answer

Sustained close proximity to infected person

Question 10

Which is a primary defence against pathogens?

Accepted Answer

inflammation

Question 11

Which disease is caused by a fungus?

Accepted Answer

Athlete's foot

Question 12

Which of the following is a chemical defence of plants against a pathogen?

Accepted Answer

hydrolytic enzymes such as chitinase found between cells

Question 13

What is the pathogen that causes malaria?

Accepted Answer

Protoctist genus Plasmodium

Question 14

Black Sigatoka is caused by which type of pathogen?

Accepted Answer

Fungi

Question 15

Which of the following types of cell is not involved in the primary immune response?

Accepted Answer

T-memory cells

Question 16

Autoimmune diseases are often treated with antibody injections. Which below describes this?

Accepted Answer

Passive artificial immunity

Question 17

Pathogens cause diseases and are transmitted in a variety of ways. Which row is correct?

Accepted Answer

A

Question 18

How is the flu virus spread?

Accepted Answer

Direct contact - kissing, Indirect transmission - coughing

Question 19

Which of the following is a primary defence against pathogens?

Accepted Answer

blood clotting

Question 20

What are the two main bacterial strains that cause meningitis?

Accepted Answer

Listeria, Streptococcus

Question 21

Which type of cell does HIV attack?

Accepted Answer

T-lymphocytes

Question 22

Athlete's foot is transmitted by?

Accepted Answer

Water, Fomites

Question 23

Tuberculosis is caused by which pathogen?

Accepted Answer

Bacteria

Communicable diseases OCR A A level

Questions 23

Communicable diseases OCR A A level

Questions 23