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Please use this identifier to cite or link to this item: http://acervodigital.unesp.br/handle/unesp/361034
Title: 
Fern sperm release
Author(s): 
Language: 
eng
Description: 
  • Fern spores germinate into haploid fern gametophytes; small plants only a few millimeters in diameter. These gametophytes produce sperm by mitosis in small sacs called antheridia. When placed in water, the antheridium opens up, and the sperm are released. In these sequences, the release of sperm is visible, including a single sperm being released from an antheridium
  • Componente Curricular::Educação Superior::Ciências Biológicas::Biologia Geral
Issue Date: 
  • 13-May-2009
  • 13-May-2009
  • 2007
  • 13-May-2009
  • 2-Oct-2008
Publisher: 
The American Society for Cell Biology, ASBC Image & Video Library
Keywords: 
  • Cell
  • Educação Superior::Ciências Biológicas::Biologia Geral
Notes: 
To show the release of the sperm of fern spores
Credits: 
Duration: 2 min, 6 s. According to the site, The American Society for Cell Biology ASBC Image & Video Library, this video is the series [Cellebration; II. Cells in motion; 10]. To visualize this source its necessary the instalation of Quick time. Available at: <http://www.apple.com/pt/quicktime/>
Source: 
http://objetoseducacionais2.mec.gov.br/handle/mec/10274
URI: 
http://acervodigital.unesp.br/handle/unesp/361034
Rights: 
You may use the Images only for research and educational purposes in an educational institution. Images may be stored on a network server, hard drive or removable media, but only while this Agreement remains in effect. All of the Images you use must be accompanied by a notice stating, "© [Date and Author's or Owner's Name]. All rights reserved. Reprinted under license from The American Society for Cell Biology." The notice shall appear with the Images or on a credits page. "Educational purposes" means (i) non-commercial instruction or curriculum based teaching by educators to students at nonprofit educational institutions, (ii) planned non-commercial study, investigation or research directed toward making a contribution to a field of knowledge, or (iii) presentation of research findings at non-commercial peer conferences, workshops or seminars, but in any event there must be express written permission from ASCB before an Image can be published. "Educational institutions" include K-12 schools, colleges and universities. Libraries, museums, hospitals, research institutes and other nonprofit organizations are considered educational institutions when they engage in nonprofit instructional, research or scholarly activities for educational purposes
Type: 
vídeo
Appears in Collections:MEC - Objetos Educacionais (BIOE) - OE

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