lecture 1 - introduction Flashcards
what is an example of absorptive epithelial cells
intestinal epithelial cells responsible for nutrients absorption
what are the intestinal epithelial cells rich in
microvilli at the apical surface to increase surface area
what are sung goblet epithelial cells responsible for
secreting mucus
what are lung ciliated epithelial cells responsible for
moving the mucus away
why do cells need to be renewed
compensate cell loss due to cell death
to repair damaged cells
what factor affects cell renewal
environmental changes
injuries
modifications in cell cycle controllers
age dependency
what is the main process of renewal
cell division
cell differentiation
cell migration
how do ells form organs
cells connect through several junctions
cells gather together and ion presence of seceded extracellular matrix they form tissue
different organs have different tissue structure with several different cell types
how is organisation of tissue preserved
cell communication
cell adhesion
cell memory
what is Adenosine triphosphate (ATP)
energy molecule responsible for powering all biological process
how is ATP is formed
via a metabolic process known as glycolysis
ATP synthase
