Exam 1 Flashcards
(59 cards)
high to low movement of monomers; uses transport protein; no energy required
facilitated diffusion
equal amounts of solute molecules
isotonic
water- loving
hydrophilic
a difference in amount of molecules between two areas
concentration gradient
structure that identifies the cell
carbohydrate chain
having less solute molecules than cytoplasm of a cell
hypotonic
allows certain molecules to pass through; keeps some molecules out
selectively permeable
the amount of molecules in a specified area
concentration
use of vesicles to move polymers out of the cell
exocytosis
substance that is dissolved
solute
outward pressure on cells
turgor pressure
movement of molecules from low to high; uses transport protein; requires energy
active transport
high to low movement of water; through phospholipid bilayer; no energy required
osmosis
mixture of a substance that is dissolved in another
solution
movement of molecules from high to low; no energy required
diffusion
use of vesicles to move polymers into the cell
endocytosis
having more solute molecules than cytoplasm of a cell
hypertonic
structure that consists of 2 layers of lipids
phospholipid bilayer
fluid that dissolves a solid, liquid, or gas
solvent
water-fearing
hydrophobic
high to low movement of small, fat soluble, uncharged polar molecules; through phospholipid bilayer; no energy required
passive transport
substance that adds stability and flexibility to the cell membrane
cholesterol
structure that helps move molecules across the cell membrane
transport protein
Identify which structure this molecule would have to travel through: glucose
transport protein
