What characteristics are common between mitochondria and chloroplasts?
I) ATP is produced;
II) DNA is present;
III) Ribosomes are present.

1. I only
2. II only
3. II and III only
4. III only
5. I, II and III

I believe that the answer is Three

Explanation:

Even though both organelles are found in eukaryotic cells, both mitochondria and chloroplast have characteristics often found in prokaryotic cells. These prokaryotic cell characteristics include: an enclosed double membrane, circular DNA, and bacteria-like ribosomes.

Complements of Wikibooks.org

Explanation:

Mitochondria and chloroplasts are similar in size and features to prokaryotes. The deep folds of the inner mitochondrial membrane, called cristae, resemble the folds in the prokaryotic cell, called mesosomes. Both cristae and mesosomes function in aerobic cellular respiration.

cells use diffusion to get substances in and out of themselves. that diffusion will occur across the cell membrane or the outer covering of the cell. because we are talking about the surface of the cell, surface area and volume are  important factors here. as a cell increases in size, its surface area and volume increase as well.  we call that the surface area to volume ratio (sa: vol).  but the catch is that  volume increases at a greater rate than surface  area. in other words, as a cell gets bigger, the sa: vol gets smaller. so a really small cell like bacteria is mostly cell membrane (surface) with very little contents (volume). a really big cell like an egg, is mostly insides with a super thin membrane. so what ends up happening is that the cell cannot efficiently diffuse all of the stuff it needs in/out to survive. therefore cell size is limited to about 100mm. so how do we make organisms bigger than 100mm? cells divide! by dividing and becoming multicellular, organisms are able to grow!   check out the diagrams i attached to see the effect of sa: vol. i hope this ! good luck!