Cells

vacuoles- stores materials within cell (water, carbs) increasing sufficient area to cytoplasm.

mitochondria- organelles. where transpiration make major portion of cell energy, from waste of glycolysis. enclosed by 2 membranes.

cloroplast- only in plant cells. use to convert light energy to make useable energy to form glucose.

cytoskeleton- network of protein filaments that help cell keep its shape.

centrioles- located by nucleus and help organize cell division. come in pairs. not found in plants

cell membrane- selectively permeable. regulates what enters and leaves cell. composed of lipid bi-layer. (Mosaic of molecules)

cell wall- outside cell membrane. provides (only plant cells) with support and protection. made of a carb called cellulose.

transcription- synthesis of RNA under direction of DNA.

exocitosis- going out of a cell.

endocitosis- going in a cell.

concentration gradient- more molecules in one area.