Tag - chloroplast

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Chloroplasts: what are they for?

Taken at face value that is a pretty daft question. After all, it is well known that chloroplasts are for photosynthesis. True, but what about the chloroplasts in the guard cells (GCCs) of stomata? Chloroplasts in those...

Image: Mariana Ruiz Villarreal/Wikimedia Commons.

Chloroplasts are how old???

It is widely acknowledged that eukaryotic cells (you know, the ones with a membrane-bound nucleus and a variety of other membrane-bound organelles (cf. prokaryotes)) came to be so complex by a series of ‘mergers and...