Cell membranes Flashcards
What is meningitis
The infection of the meninges of the brain
What is the meninges
A membrane covering the brains neural tissue
What is peristalsis
The contraction and relaxation of the intestinal muscles to move food.
What are the steps in digestion
Ingestion, dissolution and absorption
What is meant when a drug is described as a poor electrolyte
It is had to dissolve and dissociates poorly due to not being very polar
3 factors that affect a drugs absorption
Size of the drug molecule, solubility and membrane width
What is ficks law
(Surface area x concentration difference) / thickness of membrane
What are the three types of endocytosis
Phagocytosis, pinocytosis and receptors mediated endocytosis
What is phagocytosis
Endocytosis of large particles
What is pinocytosis
Endocytosis of liquids e.g. small intestines
What is receptor mediated
