生物の自発性の源について : ゾウリムシの場合

Material type: 文書・図像類

Author: 大沢, 文夫

Publisher: 愛知工業大学

Publication date: 2009-09-24

Material Format: Digital

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Note (General)：: Single cell organisms such as Paramecium swim in water by beating of a large number of cilia on the cell membrane. They change the swimming direction ...

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Material Type: 文書・図像類
Title: 生物の自発性の源について : ゾウリムシの場合
Author/Editor: 大沢, 文夫
Author Heading: 大沢, 文夫
Publication, Distribution, etc.: 愛知工業大学
Publication Date: 2009-09-24
Publication Date (W3CDTF): 2009-09-24
Alternative Title: セイブツ　ノ　ジハツセイ　ノ　ミナモト　ニツイテ　ゾウリムシ　ノ　バアイ
The Origin of　the Spontaneous　Activity of　Living cells : In the Case of Paramecium
Periodical title: 総合技術研究所研究報告=Bulletin of Research Institute for Industrial Technology.
No. or year of volume/issue: 11
Volume: 11
Pages: 107-112
ISSN (Periodical Title): ISSN : 1344-9672
Text Language Code: jpn
Target Audience: 一般
Note (General): Single cell organisms such as Paramecium swim in water by beating of a large number of cilia on the cell membrane. They change the swimming direction spontaneously by partial and transient reversal of cilia beating. The signal for the reversal is an electric pulse across the membrane. Its origin is simple thermal fluctuation of protein molecules of ion channels in the membrane, which produces the electric field fluctuation. It is amplified via the circular ionic current across the membrane. Then, the electric-pulse is generated by field-sensitive channels. The whole process is not deterministic but stochastic. The average time interval of the direction change depends on the population density of swimming cells, although its mechanism is not yet made clear. Finally discussions are made on the meaning of "spontaneous" and a possible relationship is suggested between the spontaneous activity of single cell organisms and our“free will."
identifier:http://repository.aitech.ac.jp/dspace/handle/11133/1699
Access Restrictions: 限定公開
Periodical Title (NCID): AA11484797
https://ci.nii.ac.jp/ncid/AA11484797
Data Provider (Database): 国立情報学研究所 : 学術機関リポジトリデータベース（IRDB）（機関リポジトリ）
https://irdb.nii.ac.jp
Original Data Provider (Database): 愛知工業大学 : 愛知工業大学学術情報リポジトリ