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Cell Boundaries

Teacher: Dyer
Across
molecules that are selectively dispersed between membrane phospholipids. This helps to keep cell membranes from becoming stiff
How a certain protist eats
"cell eating"
Formed by endocytosis to hold food particles
Active transport requires ?
6:1 ratio will allow for cell efficiency
? are used to move small molecules such as calcium, potassium, and sodium ions across the membrane
the process of taking up liquid from the surrounding environment
The cell removes 3 sodium ions for every 2 potassium ions that enter the cell
a major component of cell membranes
Down
allows only certain molecules to diffuse across the membrane
Create packages for exocytosis
Solute inside a cell equals solute outside cell
cell gets rid of particles, opposite of endocytosis
cell takes in large particles by engulfing them
globular proteins, transport molecules across cell membranes through facilitated diffusion
a type of passive transport that allows substances to cross membranes with the assistance of special transport proteins.
Membrane that surrounds the cell and allows materials to move into and our of the cell
Movement of water across a membrane
Energy produced by cellular respiration