Molekuler Membran Plasma pada Sistem Transpor Bakteri  

Oleh:

Jumpowati, Maria Dwi Budi

Jenis: Article from Journal - ilmiah nasional - tidak terakreditasi DIKTI
Dalam koleksi: SIGMA: Jurnal Sains dan teknologi vol. 4 no. 1 (Jan. 2001), page 5-16.
Topik: Bacterial plasma membrane; lipid bilayer; hopanoid; facilitated diffusion; active transport

Ketersediaan

Perpustakaan Pusat (Semanggi) Nomor Panggil: SS25.3 Non-tandon: 1 (dapat dipinjam: 0) Tandon: tidak ada

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Isi artikel

Bacterial plasma membrane is molecullary formed by the integral or transmembrane protein floating in a lipid bilayer, the peripheral proteins associated loosely with inner membrane surface, the hydrophilic ends of phospolipids, the hydrophobic fatty acids chains and other membrane lipids such as bacteriohopanetetrol or hopanoid. Due to this molecullary structure, bacterial plasma membrane is a highly organized and asymetric system, which is at the same time flexible and dynamic. Bacterial plasma membrane serves as a selectively permeable barrier: it allows particular ion and molecules to pass, either into or out of the cell. Transport systems can be used for such tasks as nutrient uptake, waste excretion or protein secretion. The most important characteristics of transport mechanism in bacterial cell are the facilitated diffusion and the active transport such as group translocation. Bacterial plasma membrane also contains special receptor which helps the bacteria to detect and respond to chemicals in their surroundings. The plasma membrane is thus very essential to the survival of microorganisms.

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