Pathogens

Question 1

Pathogens

Answer 1

Biological agents that are capable of replication and impair the normal function of its host.

Question 2

Prions

Answer 2

A pathogen that’s made up entirely of proteins and can convert proteins in the brain to other prions. The body doesn’t have have enzymes that digest these so they build up and destroy neurons

Question 3

Vrisues

Answer 3

Pathogens which need to be inside other cells to replicate. They have enzymes which they use to hijack the cell and make it produce more viruses

Question 4

Bacteria and their features:

Answer 4

Pathogens that can reproduce independently and don’t have membrane bound organelles

Features:

• suckers and hooks to stick to the body
• flagella for locomotion and movement
• high surface area to volume ratio to make it easier for them to get nutrients
• reproduce by binary fission
• made of peptidoglycan

Question 5

Fungi

Answer 5

Eukaryotic pathogens that have a chitin wall and can infect cells

Question 6

Protozoa

Answer 6

Unicellular eukaryotes that can’t infect plant, animal or fungus

Question 7

Oomycetes

Answer 7

Pathogens that inhibit apoptosis in plants

Question 8

Worms

Answer 8

Parasitic worms that can regulate the immune system so that response against them is suppressed

Question 9

Viroids

Answer 9

Pathogens to plants and compete for nucleotides to from viroid bundles similar to tumours