Biology CH7 Flashcards
Hydro
comes from the greek word for water
Phobic
The fear of it
Hydrophilic
Love of water.
Hydro= water
Philic=love of
Intracellular
Inside the cell
Extracellular
Outside the cell
Phospholipid
Structural unit of a cell membranes composed of a hydrophobic and hydrophilic part
Phospholipid bilayer
Two layers of phospholipids that form cell mambranes
Organelles
Membrane-boud compartments
eukaryote cells contain
membrane-bound oragelles, including a nucleus
Prokaryote cells
do not contain a nucleus or other membeanw-bound organelles.
They contain two groups bacteria and arkaya
Cells are huge compared to bacteria.
Organells
Compartmentalize cellular functions
Nucleoid
area whwere DNA exist
Cytoskeleton
Contains some proteins that are similar to the actin and filaments of eukaryotic cells
Phagocytosis
The process where large molecules or other cells are eaten by engulfing them.
Phago= devour
Pinocytosis
The process where small, dissolved substances and liquids are taken up by a cell.
Pino= to drink
Caveolae
Pockets in the plasma membrane.
Latin for little caves.
Caveolins
membrane proteins that play a role in various metabolic pathways and cellular signalling.
Transcription
the process of creating different types of RNA from DNA
Photosynthesis
The process that converts energy from sunlight into food in plant cells
