An individual mixotroph loses its plastids, yet continues to survive. Which of the following most likely accounts for its continued survival?

Question

Quizplus · Accepted Answer

Mixotrophs are organisms that are capable of both autotrophic and heterotrophic nutrition. If a mixotroph loses its plastids, it can still survive by engulfing organic material by phagocytosis or by absorption. This allows it to obtain energy and nutrients from external sources, rather than relying solely on photosynthesis. Options A and B are incorrect because a mixotroph cannot rely on photosystems floating freely in the cytosol, and it would not necessarily gain extra mitochondria when it lost its plastids. Option D is incorrect because endospores are usually dormant structures that are formed to help the organism survive in adverse environmental conditions, and are not likely to play a role in the survival of a mixotroph that has lost its plastids.

An Individual Mixotroph Loses Its Plastids, Yet Continues to Survive