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.
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