Vacuolo

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Vacuolo in le structura del cellula de planta
Structura de cellula de animal

Un vacuolo es un membrana organelle que es presente in tote le cellulas de plantas e fungos e in alicun cellulas de protistos, animales[1] e bacterios.[2] Vacuolos es compartmentes cludite que es implite con aqua que contine inorganic e organic molecules e enzymes in solution. Vacuoles es formate de le fusion de multiple membrane vesicles.[3]

Le functiones de vacuolo[modificar | modificar fonte]

Le function e importantia del vacuolos varia largo al acorde con el tipo de cellula e le es presente. La vacuolo haber multo largo prominente in le cellulas de plantas, fungos versus in le animales e bacterios. In general, le funciones de le vacuolo include:

  • Isolar le materiales que pote esser nocive o un pericole a le cellula
  • Continer le productos dissipate
  • Mentener un pression hydrostatic intern o turgor in le cellula
  • Mentener un pH intern acidic
  • Continer molecules poco
  • Exporter substances non necessario ab le cell
  • Adjuta plantas supportar structures como folios e flores per que ha le pressione in le vacuolo central

Vacuolos adjuta in le destruction de bacterio invasive. In protists, vacuolos habe un function additional de immagazinar alimento que ha essite absorbite de le organism.[4]

Organisation de un cellula e le position de vacuolo[modificar | modificar fonte]

Organisation de un cellula de animal.
1. Nucleolo Biological cell.svg
2. Nucleo
3. Ribosoma
4. Vesicula
5. Reticulo endoplasmic granulose (rugose)
6. Apparato de Golgi
7. Microtubulo
8. Reticulo endoplasmic lisie
9. Mitochondrio
10. Vacuolo
11. Cytoplasma
12. Lysosoma
13. Centriolo

Referencias[modificar | modificar fonte]

  1. Venes, Donald (2001). Taber's Cyclopedic Medical Dictionary (Twentieth Edition), (F.A. Davis Company, Philadelphia), p. 2287.
  2. http://www.springerlink.com/content/b23m0r26770x8206/ Microbiology Monographs Volume 1/2006 Vacuoles Heide N. Schulz-Vogt
  3. Brooker, Robert J, et al. (2007). Biology (First Edition), (McGraw-Hill, New York), p. 79.
  4. Jezbera Jan, Karel Hornak, Karel Simek (2005). "Food selection by bacterivorous protists: insight from the analysis of the food vacuole by means of fluorescence in situ hybridization". FEMS Microbiology Ecology 52: 351–363. doi:10.1016/j.femsec.2004.12.001.