An Obligate Association Exists Between a Gut Microbe and an Insect.A

question 13

Multiple Choice

An obligate association exists between a gut microbe and an insect.A new mutation in the microbe allows the microbe to utilize nutrients that were previously accessible to the insect.This change benefits the microbe,but causes some harm to the insect.The change in the relationship is best described as a change from

• A) mutualism to parasitism.
• B) synergism to parasitism.
• C) commensalism to amensalism.
• D) parasitism to synergism.

---

Definitions:

L-Glucose

An enantiomer of glucose that is not commonly found in nature and is the mirror image of D-glucose.

Aldonic Acid

A type of organic acid derived from aldoses, a class of monosaccharides, by oxidation of the aldehyde group to a carboxyl group.

Reducing Sugar

Any sugar that is capable of acting as a reducing agent because it has a free aldehyde group or a free ketone group.

α-D-Fructofuranose

An isomer of fructose where the furanose ring form predominates, characterized by its specific configuration at the anomeric carbon.