Biology 11th Edition by Gerald Audesirk,Teresa Audesirk,Bruce Byers

Exercise 3

In the endosymbiotic origin of the mitochondrion, the host cell benefited from the engulfed cell's ability to ____________; in the endosymbiotic origin of the chloroplast, the host cell benefited from the engulfed cell's ability to____________.
A) detoxify waste material; produce toxins that deterred predators
B) use aerobic respiration to produce ATP; use photosynthesis to produce sugar
C) use photosynthesis to generate oxygen; provide a shield against UV radiation
D) move rapidly using flagella; form a cell nucleus