Assignment Primary endosymbiosis is known to be important in the origin of certain organelles (mitochondria and chloroplasts) in eukaryotes, and in the origin of photosynthesis in red algae, green algae, and land plants. In addition, secondary endosymbiosis has been important in the origin of photosynthetic capacity in various protist lineages (algae). Given that: 1. phagocytic events result a single membrane around the engulfed endosymbiont, an 2. there are fundamental differences in chromosome and gene structure between the genomes of extant prokaryotes and eukaryotes make a rationale prediction of cell and chloroplast structure in photosynthetic eukaryotes that have resulted from both primary and secondary endosymbioses. Describe chloroplast structure in terms of the total number of membranes surrounding the organelle, the nature of the organellar genome or genomes (prokaryotic or eukaryotic) present, and the compartmental location of the genomes. Describe cellular structure by adding one additional membrane (the plasma membrane) around the organelle and giving the compartmental location of the nucleus..

1. Assignment Primary endosymbiosis is known to be important in the origin of certain organelles
(mitochondria and chloroplasts) in eukaryotes, and in the origin of photosynthesis in red algae,
green algae, and land plants. In addition, secondary endosymbiosis has been important in the
origin of photosynthetic capacity in various protist lineages (algae). Given that: 1. phagocytic
events result a single membrane around the engulfed endosymbiont, an 2. there are fundamental
differences in chromosome and gene structure between the genomes of extant prokaryotes and
eukaryotes make a rationale prediction of cell and chloroplast structure in photosynthetic
eukaryotes that have resulted from both primary and secondary endosymbioses. Describe
chloroplast structure in terms of the total number of membranes surrounding the organelle, the
nature of the organellar genome or genomes (prokaryotic or eukaryotic) present, and the
compartmental location of the genomes. Describe cellular structure by adding one additional
membrane (the plasma membrane) around the organelle and giving the compartmental location of
the nucleus.