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Cells12
Cells
Question | Answer |
---|---|
hypertonic | higher concentration than cell fluids. Cell loses H2O and shrinks |
hypotonic | Solution less concentrated than intercellular fluid Draws H2O in, sweels and bursts |
Isotonic | Solution has same concentration of molecules as the fluid in the cells. Ex. Blood Plasma |
endocytosis | bulk movement of materials into cells |
plasma membrane | cells structure. outer covering of cells. Double layer lipd molecules |
centrioles | rod shaped (pasta) CELL DIVISION |
cytoplasm | main substance that fills cells and holds cell contents |
Mitosis | division process by which cell reproduction occurs |
Prophase | when double strand returns to spiral organization. centroils move to opposite ends of the cell |
Osmosis | no enery required. DIFFUSION of water through semimermeable membrane |
Diffusion | don't require cellular energy. constant movement from HIGH concentration to LOWER concentration. |
Metaphase | chromosomes line up across thread like spindle...middle |
Anaphase | Duplicate chromosomes seperate and begin to move towards opposite ends of cell |
Interphase | genetic Material is doubled prior to split. MUST HAPPEN BEFORE |
Nucleotide | must consist of phosphate unit nitrogen base sugar unit to make a nucleotide |
nucleolus | inside nucleus. Manufacters proteins |
Ribosomes | Formation of proteins. Where they are formed |
endoplasmic reticulum | Network of membranes |