Topic 3- Infection & Response Keywords

Question 1

Communicable

Answer 1

Infectious

Question 2

Pathogen

Answer 2

Microorganism that causes disease, e.g. bacteria, fungi, virus, protist

Question 3

Measles

Answer 3

Viral disease with symptoms of a fever and red skin rash

Question 4

HIV

Answer 4

Virus that causes a flu-like illness but damages the immune system and develops into AIDS

Question 5

Tobacco mosaic virus (TMV)

Answer 5

Plant virus causing discolouration of the leaves that affects the growth of the plant due to lack of photosynthesis

Question 6

Salmonella

Answer 6

Bacterial disease which causes food poisoning

Question 7

Gonorrhoea

Answer 7

STD with symptoms of a thick yellow/green discharge and pain when urinating

Question 8

Rose black spot

Answer 8

Fungal plant disease where purple/black spots develop on the leaves which turn yellow and drop off

Question 9

Malaria

Answer 9

Disease caused by a protist where mosquitos are the vector

Question 10

Vector

Answer 10

An organism that transports a disease from person to person

Question 11

Phagocytosis

Answer 11

White blood cells engulf and digest pathogens

Question 12

Antibodies

Answer 12

Produced by white blood cells to help kill pathogens

Question 13

Vaccination

Answer 13

Inserting small amounts of dead or inactive forms of a pathogen to stimulate antibody production

Question 14

Antibiotics

Answer 14

Medicines that cure bacterial infections by killing bacteria

Question 15

Placebo

Answer 15

Fake drug

Question 16

Double-blind trial

Answer 16

A clinical trial where both the patient and the doctor do not know if the patient has been given a real drug or the placebo (fake drug)

Question 17

Monoclonal antibodies

Answer 17

Antibodies specific to one binding site on one protein antigen

Question 18

Hybridoma

Answer 18

A combination of a lymphocyte with a tumour cell

Question 19

Nitrate deficiency

Answer 19

Causes stunted growth in plants

Question 20

Magnesium deficiency

Answer 20

Causes chlorosis (yellowing of leaves) in plants

Question 21

Physical

Answer 21

Plant defence responses to resist invasion of microorganisms, e.g. tough waxy cuticle

Question 22

Chemical

Answer 22

Plant defence responses to resist invasion of microorganisms, e.g. poisons

Question 23

Mechanical

Answer 23

Plant defence responses to resist invasion of microorganisms, e.g. leaves which droop when touched