WEEK 4

Hi everyone.

In week 4, basically we learned about endosymbiosis.

Simply speaking, endosymbiosis is a type of symbiosis in which one organism lives inside the other, the two typically behaving as a single organism. It is believed to be the means by which such organelles as mitochondria and chloroplasts arose within eukaryotic cells.

As said, it is believed that the first primitive eukaryotic cell did not contain such organelles which were mitochondria an chloroplast. As the eukaryote engulf the ancestor of mitochondria, it discovered that the bacterium might be useful to it so it let the bacterium lives inside it. The same phenomenon happened for chloroplast. This is actually quite believable as both mitochondria and chloroplast have their own DNA, both have double membrane structure, and other characteristics which prove the endosymbiosis theory.

Below is the link to a video that will explain further about the ensymbiotic theory.

https://www.youtube.com/watch?v=-FQmAnmLZtE

Other than that, we were also required to complete a Venn diagram to compare and contrast mitochondria and chloroplast.

The Venn diagram that showed the similarities and differences between mitochondria and chloroplast.

Basically, that's all for week 4. Goodbye and see you in the next post.