From Wikipedia, the free encyclopedia. For the fungi genus, see Chalazion (fungus) . A chalazion (/kÉËleÉªziÉn/ ; plural chalazia /kÉËleÉªziÉ/), also known as a meibomian gland lipogranuloma, is a cyst in the eyelid that is caused by inflammation of a blocked meibomian gland, usually on the upper eyelid.Chalazia differ from styes (hordeola) in that they are subacute and usually painless nodules.rom Wikipedia, the free encyclopedia. For the fungi genus, see Chalazion (fungus) . A chalazion (/kÉËleÉªziÉn/ ; plural chalazia /kÉËleÉªziÉ/), also known as a meibomian gland lipogranuloma, is a cyst in the eyelid that is caused by inflammation of a blocked meibomian gland, usually on the upper eyelid.
The nucleus, chloroplast, and mitochondria have in common is that they are membrane-bound organelles in a cell.
â¢ Chloroplasts use light to produce ATP and sugars, whereas mitochondria use sugars to produce ATP. â¢ Chloroplasts found only in photosynthetic eukaryotic organisms, such as plants and green algae, whereas mitochondria found in every eukaryotic organism. â¢ Mitochondria have matrix, and chloroplasts have stroma. â¢ Unlike the mitochondria, chloroplasts contain a pigment called chlorophyll and thylakoid disks.