Chloroplasts present in plant cells

What they are (definition)

Chloroplasts are organelles present in the cells of plants and other photosynthetic organisms such as algae.

Main characteristics of chloroplasts:

- They are green in color due to the presence of chlorophyll.

- They are limited by a kind of envelope formed by two lipoprotein membranes.

- It has inside it a liquid known as stroma.

- They have DNA, RNA and ribosomes. Thus, they have the ability to perform the process of protein synthesis and multiply.

Function of chloroplasts in plants:

- In chloroplasts photosynthesis reactions occur.


- One plant cell had 40 to 50 chloroplasts.