.
Author:
Evaluation:
Published: 01.04.2004.
Language: English
Level: Secondary school
Literature: n/a
References: Not used
  • Summaries, Notes 'Biology Basics: Homeostasis', 1.
Extract

Homeostasis
1. What is diffusion? What is osmosis?
Diffusion is the process by which substances spread from regions of high concentration to regions of low concentration. It is a method of passive transport, and thus costs the cell no energy. Electrically charged ions and large molecules will not diffuse freely across the membrane.
Facilitated diffusion is used for molecules that can't diffuse through the cell membrane because they are too large or not soluble in the lipid bilayer. Proteins in the membrane acts as channels and enable them to pass through more quickly. First, the carrier pr…

Send to email

Your name:

Enter an email address where the link will be sent:

Hi!
{Your name} suggests you to check out this eKönyvtár paper on „Biology Basics: Homeostasis”.

Link to paper:
https://eng.ekonyvtar.eu/w/919115

Send

Email has been sent