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نماذج الجزئيات - العلوم - الثالث المتوسط - الفصل الأول
السمات:
جزئيات Molecular |
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نماذج الجزئيات - العلوم - الثالث المتوسط - الفصل الأول
السمات:
جزئيات Molecular |
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Painting of Chlamydomonas:Chlamydomonas is a genus of green alga. They are unicellular flagellates. Chlamydomonas is used as a model organism for molecular biology, especially studies of flagellar motility and chloroplast dynamics, biogenesis, and genetics. One of the many striking features of...
السمات:
green algae chlamydomonas moltile algae botany bilogy |
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Painting of Star Shaped Bacteria:In South Africa, they observed a filamentous bacterium that was star-shaped when examined in cross section. Star-shaped bacteria have been seen before (e.g., the genus Stella) and, of course, long rod shaped bacteria are common. What had never been observed was a...
السمات:
Star shaped bacteria marine bacteria microorganisms microbiology |
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Painting of Actin Mysoin:Myosin is a molecular motor that acts like an active ratchet. Chains of actin proteins form high tensile passive 'thin' filaments that transmit the force generated by myosin to the ends of the muscle. Myosin also forms 'thick' filaments. Each myosin...
السمات:
actin mysoin muscle filaments muscle muscle movement |
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Painting of Contracted-Smooth-Muscle:Smooth muscle contraction is caused by the sliding of myosin and actin filaments (a sliding filament mechanism) over each other. The energy for this to happen is provided by the hydrolysis of ATP. Myosin functions as an ATPase utilizing ATP to produce a...
السمات:
smooth muscle Contraction smooth muscle muscle |
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