Question

Chloroplasts have their own chromosome, are about the size of a bacterium, and reproduce separately from the nucleus of a plant cell. Which statements are true.1. Chloroplasts are living organisms.2.Chloroplasts are cyanobacteria.3.Chloroplasts are likely descendants of photosynthetic bacteria.4.Organisms lacking chloroplasts are incapable of photosynthesis.5.Chloroplasts likely have an endosymbiotic origin.

Answer 1

The true statements are:

3. Chloroplasts are likely descendants of photosynthetic bacteria.

5. Chloroplasts likely have an endosymbiotic origin.

1 is false because chloroplasts aren't living organisims but organelles.

2 is incorrect because chloroplasts aren't cyanobacteria anymore, even though they have evolved from them.

4 is incorrect because for example, cyanobacteria haven't got chloroplasts, and they are able of doing photosynthesis.