The inside of a chloroplast with the granum circled.

叶绿体部构造与颗粒盘旋。

The chloroplast envelope has the light yellow color of violaxanthin.

叶绿体套膜有紫黄质淡黄色。

Pyrenoid A protein structure found in the chloroplasts of green algae and hornworts (Anthocerophyta). Pyrenoids are associated with the storage of starch.

核，蛋白核：在绿藻和角苔（角苔门）叶绿体中所发现蛋白质结构。核与储存有关。

The uniformity of chloroplast grana lamellae,, the numbers and cristae of mitochondria, and the concentration of nucleus karyolymph were different among different mature grade leaves.

不同成熟度叶片超微结构变化明显，主要表现在叶绿体片层结构整齐程度、线粒体个数和嵴数以及细胞核核液浓度上。