cell organelles under tem

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Image: tac01.sem.gif (image/gif)	Nucleus: largest organelle surrounded by a nuclear membrane houses nearly all genetic material contains chromatin which condenses into chromosomes during cell division contains the nucleolus which produces RNA and ribosomes
Image: rough_endoplasmic_reticulum_tem_9C3023 (image/jpg)	Rough endoplasmic reticulum: Has ribosomes on it Transports the proteins synthesised by the ribosomes Made of flattened, membrane-bound sacs called cisternae
Image: C0178234-Golgi_apparatus__TEM-SPL (image/jpg)	Golgi Apparatus: Modifies proteins and packages them off into vesicles for secretion
Image: Cell_easy_nowKamal_html_m1466f2f2 (image/jpg)	Mitochondrion: inner membrane folds into the cristae produces most of the adenosine triphosphate during respiration
Image: Chlor_compare (image/jpg)	Chloroplasts: in plant cells and some protocists 2 membranes separated with a fluid filled space inner membrane is continuous contains stacks of thylakoids (granas) chlorophyll present on the thylakoid membranes and intergranal membranes
Image: 9N2228-Lysosomes-TEM (image/jpg)	Lysosomes: contain digestive enzymes break down materials sperm acrosome helps break down the surface of the ovum, allowing it to pass through
Image: graphic-2.gif (image/gif)	Ribosomes: site for protein synthesis consists of 2 sub-units
Image: centriole1 (image/jpg)	Centriole (top): forms fibres known as a spindle - which move chromosomes during nuclear division

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	Erstellt von Lucy Youle vor etwa 10 Jahre