Pathogenic Organisms L02

Question 1

Explain the process of which pathogens cause harm to an organism.

Answer 1

1. Gain entry
2. Multiply the tissue
3. Damage the host after finding the hosts defence mechanism.

Question 2

State 3 facts about bacteria.

Answer 2

1. Bacteria will only replicate when conditions are substantial.
2. Most are aerobic/anaerobic
3. Some can produce dangerous toxins.

Question 3

State no less than 2 facts about binary fission..

Answer 3

1. Transmission = indirect and direct contact
2. Replicate by binary fission and conjugation
3. Simple cell division
4. Prokaryotic
5. Eukaryotic

Question 4

What does aerobic mean?

Answer 4

Needing air

Question 5

What does anaerobic mean?

Answer 5

Not needing air

Question 6

What does conjugation mean?

Answer 6

It relates to the exchange and sharing of DNA between bacteria which enhances bacteria ability which in turn = immune to medication.

To put it simply - Exchange/transfer of DNA.

Question 7

What does the term ‘Sporulation’ mean?

Answer 7

Release of spores.

Question 8

State 2 facts about fungi (moulds and yeasts)

Answer 8

1. Simple plants

2. Lives on dead organic matter

Question 9

Which out of both moulds and yeasts are multicellular?

Answer 9

Moulds

Question 10

State 3 facts regarding Moulds.

Answer 10

1. Multicellular (complex)
2. Requires less moisture than bacteria.
3. Much easily destroyed than bacteria

Question 11

State 3 facts regarding Yeasts.

Answer 11

1. Unicellular (simple)
2. Requires moisture
3. Produce toxins and allergens
4. Cause disease by invading healthy tissue.

Question 12

Is Protozoa single-celled?

State 2 additional facts about Protozoa.

Answer 12

Yes it is single-celled.

1. Reproduce by binary fission
2. Toxoplasma
3. Giardia
4. Live off organic matter.