You are given the task of designing an aerobic, mixotrophic protist that can perform photosynthesis in fairly deep water (for example, 250 m deep), and can also crawl about and engulf small particles. With which two of the following structures would you provide your protist?
1)hydrogenosome
2)apicoplast
3)pseudopods
4)chloroplast from red alga
5)chloroplast from green alga
A) 1 and 2
B) 2 and 3
C) 2 and 4
D) 3 and 4
E) 4 and 5

Question

Quizplus · Accepted Answer

For deep-water photosynthesis, chloroplasts from red algae are ideal because they can absorb light at longer wavelengths, which penetrates deeper into the water. Pseudopods would allow the protist to crawl and engulf particles, fitting the mixotrophic and mobile criteria.

You Are Given the Task of Designing an Aerobic, Mixotrophic