cell physiology Flashcards
regulates entry and exit of ions, nutrients, and waste molecules through the membrane
selective permeability
functions of integral proteins
structural proteins, cell indicating markers
lipids and proteins are not ___ and float in membrane due to ____
static, thermal energy
temporary cell-cell adhesions
selectins
___ and ___ specializations of the cell reflect its function
morphological and structural
what is physiology
study of the normal functioning of a living organism and its component parts, including chemical and physical process
what affects fatty acid fluidity
chain length and saturation
present on external surfaces, functions as cell indication markers, receptors (cholera toxin)
glycolipid
calcium-dependent
cadherins
established a flexible boundary, protects cellular contents and supports cell structure
intercellular connection
phospholipids, phosphoglyceride, cholesterol
lipids
integral, peripheral, lipid-anchored
proteins
oleic acid
unsaturated lipid in a kinked form. less SA
how does cholesterol react to high temp
less susceptible to high temps
study of body functions in a diseased state
pathophysiology
primarily found in cell-matrix junctions- function in cell signaling
integrins
most abundant type of membrane lipids
phospholipids
is high cholesterol fluid or rigid
rigid
cell-cell junctions such as adherent junctions and desmosomes
cadherins
how does cholesterol affect permeability ability
increases tightness of membranes
NCAMs. responsible for nerve growth
Immunoglobulin super family CAMs
degree of membrane fluidity depends on
temperate and lipid content
signaling molecules
ligands
contains receptors that recognize and response to molecular signals
communication
4 functions of the plasma membrane
- communication
- selective permeabilty
- intracellular connection
- physical barrier
phospholipid bilayer separated substances inside and outside the cell
physical barrier
glycoprotein
sugar molecule attached to a protein
stearic acid
saturated, extended form, more SA