Bacterial and Fungal diseases and Protist diseases

Question 1

State some examples of diseases caused by bacteria

Answer 1

Salmonella food poisoning
Gonorrhoea

Question 2

Two symptoms of infection by Salmonella are vomiting and diarrhoea.

What causes these symptoms?

Answer 2

toxins / poisons (secreted by / from / in bacteria)

Question 3

State the symptoms of Salmonella food poisoning

Answer 3

Symptoms
Fever
Abdominal cramps
Vomiting
Diarrhoea

Question 4

What are the symptoms of salmonella caused by

Answer 4

The symptoms are caused by the toxins secreted by the bacteria

Question 5

State how salmonella food poisoning is spread/method of transport

Answer 5

Salmonella food poisoning is spread by bacteria ingested in food,
or on food prepared in unhygienic conditions

Question 6

State the prevention/treatment of Salmonella food poisoning

Answer 6

Prevention/treatment
Fully cooking meat

isolate yourself
disinfect clothes / surfaces
wash hands after using toilet / being sick
wash hands before preparing / handling food
do not share utensils / cutlery / towels

Question 7

A person with AIDS may take longer than a healthy person to recover from a Salmonella infection.

Explain why.

Answer 7

Their immune system is damaged. Therefore white blood cells cannot kill bacteria as effectively

Question 8

Salmonella bacteria can be transmitted from chickens to humans. Chickens can be vaccinated to prevent the transmission of Salmonella bacteria to humans.

Suggest one other way farmers could prevent the transmission of Salmonella from chickens to humans.

Answer 8

(give chickens) antibiotics
don’t sell infected chickens / eggs
keep infected chickens isolated / indoors
slaughter the infected chickens
Vaccinate chickens against Salmonella to prevent the transmission of Salmonella bacteria to humans

Question 9

In very serious infections of Salmonella, a doctor can prescribe drugs to kill the bacteria.

What type of drug can the doctor prescribe to kill the bacteria?

Answer 9

  antibiotics

Question 10

What type of disease is Gonorrhoea

Answer 10

Gonorrhoea is a bacterial disease
Gonorrhoea is a sexually transmitted disease (STD)

Question 11

State the symptoms of Gonorrhoea

Answer 11

a thick yellow or green discharge from the vagina or penis
Pain when urinating

Question 12

State the method of transport of Gonorrhoea

Answer 12

Gonorrhoea
is spread by sexual contact.

Question 13

State the prevention/treatment of Gonorrhoea

Answer 13

Condoms
Antibiotics

Question 14

Give an example of disease caused by fungi

Answer 14

disease caused by fungi
Rose Black Spot

Question 15

State the symptoms of Rose Black Spot

Answer 15

Purple or black spots develop on leaves
Leaves turn yellow and drop early

Question 16

State the method of transport of Rose Black Spot

Answer 16

Spores spread by wind and rain

Question 17

State the prevention/treatment of Rose Black Spot

Answer 17

Fungicides
Removing and destroying the affected leaves

Question 18

What does Rose Black Spot affect

Answer 18

Rose Black Spot affects the growth of the plant as photosynthesis is reduced

Question 19

Give an example of diseases caused by protists

Answer 19

Malaria

Question 20

State some of the symptoms of malaria

Answer 20

Malaria symptoms
Recurrent episodes of fever
Headaches
Shivering
Vomiting
Joint pain
Anaemia (lack of Oxygen in the blood)

Malaria can be fatal

Question 21

Describe the life-cycle of the malaria pathogen

Answer 21

Mosquito consumes infected blood when feeding

Sexual reproduction of the malaria parasite

Female Anopheles Mosquito bites the human

Malaria parasite infects the liver and reproduces asexually

Malaria parasites are in the human blood

Question 22

Mosquitos are vectors. Explain why

Answer 22

Mosquito’s carry the pathogen from one person to another person

Question 23

How to stop the spread of malaria

Answer 23

The spread of malaria is controlled by
preventing the vectors, mosquitos, from
breeding
By using mosquito nets to avoid being bitten.