Which of these are mitochondria and which is chloroplast? Provide evidence to support that.

Energy production by mitochondria and Photosynthesis by chloroplast. In this discussion, you will be looking at how these organelles evolved. According to the endosymbiotic theory, these organelles such as plastids (chloroplast) and mitochondria were taken up by another cell by the process of endocytosis. This is the evolutionary theory of the origin of eukaryotic cells from prokaryotic organisms. Watch this video to learn more https://youtu.be/4LhBZ2H5SwM

In the table below, two eukaryotic organelles are shown – Organelle A and Organelle B.

Both organelles belong to a eukaryote. Do one or both organelles (A and B) have more similarities with eukaryotes or prokaryotes? Provide at least two reasons to support that.
Which of these are mitochondria and which is chloroplast? Provide evidence to support that.
As you know if bacteria enter the human body or for that matter any organism, it is destroyed. In your opinion, why was the organelle not destroyed and underwent endosymbiosis for the evolution of eukaryotes? Share your knowledge of energy production and photosynthesis with organelles from the chapter and state the reason in your own words.
Cell Type

Eukaryote

Prokaryote

Organelle A

Organelle B

DNA

Organized into chromosomes

Single loop

Single loop

Single loop

Ribosomes

80S

70S

70S

70S

(S- sedimentation coefficient)

50-500

1-10

1-10

1-10

Size (microns)

Yes

No

No

No

Cell Nucleus

Yes

No

No

No

Replication

Mitosis

Binary fission

Binary fission

Binary fission

Inner Membrane

Contains flattened sacs called thylakoids

Contains folds called cristae.