Prokaryotes III

Question 1

symbiosis

Answer 1

The state of any two species having an extended and intimate association

Question 2

mutualism

Answer 2

\+, + 
The host (the larger of two species) and the microsymbiont (the smaller of the two species) may derive mutual benefit from the association

Question 3

parasitism

Answer 3

+ parasite, - host

one member of the symbiosis derives benefit at the expense of the other,

Question 4

commensalism

Answer 4

\+, 0
appear benign (are neither of benefit nor harm) to either or both species

Question 5

Exotoxins

Answer 5

proteins secreted by prokaryotes

Question 6

endotoxins

Answer 6

surface protein components of the outer cell membrane in some gram-negative bacteria