Next Generation: MS.LS1.2 MS.LS1.2


Author: Nathan Lampson
This lesson will discuss the structure and function of the chloroplast.
See More
Try a College Course Free

Sophia’s self-paced online courses are a great way to save time and money as you earn credits eligible for transfer to over 2,000 colleges and universities.*

Begin Free Trial
No credit card required

26 Sophia partners guarantee credit transfer.

226 Institutions have accepted or given pre-approval for credit transfer.

* The American Council on Education's College Credit Recommendation Service (ACE Credit®) has evaluated and recommended college credit for 21 of Sophia’s online courses. More than 2,000 colleges and universities consider ACE CREDIT recommendations in determining the applicability to their course and degree programs.



Only plant cells and a select handful of other organisms are able to produce energy from sunlight.  The structure found inside plant cells and these organisms that allows them to absorb sunlight is called a chloroplast.


Chloroplasts are a green cell organelle that is instrumental in converting sunlight into carbohydrate energy.  Inside chloroplasts, a structure called a thylakoid is filled with a pigment called chlorophyll.  Chlorophyll is the reason plants appear green.  A stack of thylakoid structures inside a chloroplast is called a granum.


Without choroplasts, plants could not undergo photosynthesis and would be unable to produce energy from the sun.