In the text Chemistry: The Central Science, the inside of a grapefruit is classified as a homogeneous mixture. Unless I’m missing something, to me it would be a heterogenous mixture owing to pulp, seeds, and ultimately the fact that cells are not homogenous. Is this a mistake in the text, and, if not, what am I missing?
According to Wikipedia:
In chemistry, a heterogeneous mixture consists of either or both of a) multiple states of matter or b) hydrophilic and hydrophobic substances in one mixture
The inside of a grapefruit is clearly made up of multiple states of matter (solid and liquid), and is thus heterogeneous. Text books sometimes contain errors, and that appears to be the case here.