Exam 13: Mitochondria, Chloroplasts, and Peroxisomes

What are the two mechanisms by which peroxisomes can be formed?

Presumably, the original chloroplast genome coded for many more proteins than it does today. Some of these genes must have been transferred to the nucleus, with the resulting protein product needing to be imported into chloroplasts. Other genes must have originated in the nucleus and were then adapted for import into chloroplasts. What were the likely protein adaptations that must have occurred for protein import into chloroplasts, and how might one determine whether the protein originated from a chloroplast or a nuclear-coded gene?

Electron transport occurs in the mitochondrial

Mitochondria contain about 1,500 different proteins.

All plastids, including chloroplasts, develop from

The outer mitochondrial membrane contains proteins that