Question

what will happen if there is no chloroplastid and centrosome​

Answer 1

If there is no cloroplastid in the plant the plant losses it's green color.

Answer 2

In the process, they produce oxygen, which constitutes a significant portion of the air we breathe so less plants means less recycling of carbon dioxide and less oxygen production. Plants also give us food and fibers to make clothes and without photosynthesis, we would not be able to sustain the life we are living.