Symbiosis - Answer--The stable association of one organisms with another
-Occurs whether or not the association is beneficial for both partners
Symbiont - Answer--Smaller organism in a symbiotic relationship
Larger organism in a symbiotic relationship - Answer-Host
Microbe-host relation...
MCB 3020 Final Exam Questions with
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Symbiosis - Answer--The stable association of one organisms with another
-Occurs whether or not the association is beneficial for both partners
Symbiont - Answer--Smaller organism in a symbiotic relationship
Larger organism in a symbiotic relationship - Answer-Host
Microbe-host relationship is sometimes called - Answer--holobiont or superorganism
All symbionts must undergo the process of - Answer--host colonization, reproduction,
and persistence within the host as well as transmission to a new host
Endosymbiont - Answer-Symbionts that live within the host
Ectosymbiont - Answer-Symbionts that live on the surface of the host
Symbionts alter not only the health of their host but - Answer-Their behavior, evolution,
and reproductive success as well
Mutualism - Answer-Defines the relationship in which some reciprocal benefit accrues to
both partners
An obligatory relationship in which the mutualist and the host are dependent on each
other
*In many cases, the individual organisms will not survive when separated.
Microorganism-Insect Mutualisms - Answer--Mutualistic associations are common
between microbes and insects partly because insects often consume plant sap or
animal fluids lacking essential vitamins and amino acids
-These are provided by bacterial symbionts in exchange for a secure habitat and ample
nutrients
Amphids and their y-proteobacterium - Answer--Mature amphid contains millions of
bacteria within bacteriocytes
- Strains of B aphidicola provide their hosts with ten essential amino acids absent in sap
-If the insect is treated with antibiotics it dies
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