类囊体 Thylakoid
（重定向自Granum）
![叶绿体中的类囊体。](/Images/godic/202501/16/Thylakoid0011.png")
![类囊体的结构。](/Images/godic/202501/16/Granum.svg0011.png")
![透射电子显微(TEM)下基粒的图像](/Images/godic/202501/16/Chloroplast_in_leaf_of_Anemone_sp_TEM_85000x0011.png")
类囊体是叶绿体或蓝绿藻中的一种单层膜囊状结构，是光合作用中光反应进行的场所。类囊体的存在增大了叶绿体的膜面积，从而增大了受光面积。类囊体（Thylakoid）一词源于希腊文“thylakos”，意为「囊」。类囊体常堆叠起来形成基粒，而基粒由基质片层相互连接着。
granum
/'grɑːnəm/ /'grenəm/
英汉-汉英词典
n. 叶绿体基粒
英语例句库
- The inside of a chloroplast with the granum circled.
叶绿体的内部构造与颗粒盘旋。
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英语百科
Thylakoid 类囊体
（重定向自Granum）
![](/Images/godic/202501/16/Chloroplast_mini.svg0011.png")
![Thylakoids (dark green) inside a chloroplast](/Images/godic/202501/16/Thylakoid20011.png")
A thylakoid is a membrane-bound compartment inside chloroplasts and cyanobacteria. They are the site of the light-dependent reactions of photosynthesis. Thylakoids consist of a thylakoid membrane surrounding a thylakoid lumen. Chloroplast thylakoids frequently form stacks of disks referred to as grana (singular: granum). Grana are connected by intergranal or stroma thylakoids, which join granum stacks together as a single functional compartment.
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- device deallocation