Biodiversity and classification of microorganisms

Question 1

virus
example
symptoms
cure

Answer 1

influenza
respiratory problems
and muscle pains

Vaccination

Question 2

Bacteria
example
symptoms
treatment

Answer 2

Tuberculosis
Loss of appetite and weight,
excessive coughing
sweating at night

Treatment of drugs for
six months

Question 3

protista
example
symptoms
cure

Answer 3

Malaria
Headache
fever
joint pain
vomiting
convulsions
anaemia

Sleeping under mosquito nets.
Insect repellents

Question 4

2 types of immunity

Answer 4

natural
acquired

Question 5

natural immunity

Answer 5

at birth
once exposed to infection

Question 6

Plants and animals use active and passive response for protection.
Plants use the following to prevent pathogens from entering (Passive response)

Answer 6

• Thick buck of woody plants.
• Closely packed epidermal cells
• Waxy cuticle keeps out micro-organisms
• Chemical secretions of some plants are poisonous to many organisms

Question 7

Plants use the following to fight the pathogens when infected (Active response)

Answer 7

• Releases chemical compounds such as salicylic acid
• Unaffected cells respond by producing various chemical defences to protect
  themselves.

Question 8

Animals use the following to prevent pathogens from entering (Passive response):

Answer 8

• A multi-layered skin
• Antiseptic tears
• Mucus lined air passages which trap pathogens
• lysozyme in the saliva
• Ear wax
• Hydrochloric acid in stomach