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Biological Concentration Falls May 3 2010
Description
The processes of diffusion and active transport are responsible for the movement of substances into and out of the cell through the membrane. This explanation demonstrates how molecules move both down and against their concentration gradients through the use of energy, thereby enabling life to persist and maintaining homeostasis within a constantly changing environment.
Original title
מפלי ריכוזים ביולוגיים (3 במאי 2010)
תהליכי הדיפוזיה וההעברה הפעילה אחראים על תנועת חומרים אל התא ומחוצה לו דרך הקרום. הסבר זה מדגים כיצד מולקולות נעות במורד מפל הריכוזים ובניגוד אליו תוך שימוש באנרגיה, ובכך מאפשרות את קיומם של חיים ושמירה על הומאוסטזיס בסביבה המשתנה ללא הרף.
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