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20 Cards in this Set
- Front
- Back
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MATERIALS ENTER AND LEAVE THE CELL IN 3 WAYS
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DIFFUSION, OSMOSIS, ACTIVE TRANSPORT
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DIFFUSION
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THE PROCESS BY WHICH MOLECULES OF A SUBSTANCE MOVE FROM AREAS OF HIGHER CONENTRATION TO LOWER CONCENTRATION
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SELECTIVELY PERMEABLE
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CELL MEMEBRANE THAT PERMITS ONLY CERTAIN SUBSTANCES INTO THE CELL (OXYGEN, WATER, FOOD) NOT ALLOWED- WASTE PRODUCTS AND CARBON DIOXIDE
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OSMOSIS
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THE DIFFUSION OF WATER INTO OR OUT OF A CELL
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IF YOU PUT A CELL INTO A GLASS OF SALT WATER WHAT HAPPENS TO THE CELL?
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WATER LEAVES THE CELL AND THE CELL SHRINKS- IF TOO MUCH WATER LEVES THE CELL IT WILL DRY UP AND DIE
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IF YOU PUT A CELL INTO A GLASS OF PURE WATER WHAT HAPPENS TO THE CELL?
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WATER ENTERS THE CELL AND THE CELL SWELLS- IF TOO MUCH ENTERS- IT CAN BURST
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WHICH PROCESS(ES) REQUIRE ENERGY?
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ACTIVE TRANSPORT
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WHICH PROCESS (ES) DOES NOT REQUIRE ENERGY
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DIFFUSION AND OSMOSIS
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ACTIVE TRANSPORT
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PROCESS THAT "CARRIES" SUBSTANCES INTO THE CELL- **REQUIRES ENERGY
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IN ORDER FOR THE NUMBER OF CELLS TO INCREASE, AND FOR IT TO GROW WHAT NEEDS TO HAPPEN?
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CELL DIVISION
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CELL DIVISION OCCURS IN WHAT?
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STAGES OR PHASES
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PHASE 1
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-INTERPHASE
- THE NUMBER OF CHROMOSOMES IN THE NUCLEUS DOUBLES (THEY LOOK LIKE THREADED COILS) - EACH CHROMOSOME AND IT'S SISTER ARE ATTACHED AT THE CENTROMERE (CALLED CHROMATIDS) |
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CHROMATIN
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CHROMOSOMES THAT APPEAR LIKE THREADLIKE COILS
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MOST PLANT CELLS DO NOT HAVE WHAT?
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CENTRIOLES
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PHASE 2
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-PROPHASE
-MITOSIS BEGINS -EACH CHROMOSOME CHANGES FROM THE THREAD COILS TO NORMAL LOOKING CHROMOSOMES -CENTRIOLES (ANIMAL CELLS) BEGIN TO MOVE TO ENDS OF CELL -MESH-LIKE SPINDLE DEVELOPS BETWEEN 2 CENTRIOLES -NUCLEAR MEMBRANE BEGINS TO BREAK DOWN AND NUCLEOLUS DISAPPEARS |
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PHASE 3
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-METAPHASE
-CHROMOSOMES BEGIN TO ATTACH TO THE SPINDLE -CHROMOSOMES ARE ATTACHED TO THE SPINDLE BY THE CENTROMERE |
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PHASE 4
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-ANAPHASE
-THE CENTROMERE SPLITS MAKING A PAIR SEPARATE - EACH SISTER CHROMATID GOES TO AN OPPOSITE END OF THE CELL - NOW CHROMATIDS ARE CALLED CHROMOSOMES AGAIN |
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PHASE 5
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-TELOPHASE
-END OF MITOSIS -MUCLEAR MEMBRANE FROMS AROUND EACH SET OF CHROMOSOMES AT THE END OF THE CELL |
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PHASE 6
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-CYTOKINESIS
-THE CELL MEMBRANE BEGINS TO PINCH IN- FORMING 2 NEW DAUGHTER CELLS- -EACH CELL CONTAINS THE SAME NUMBER AND KIND OF CHROMOSOME AS THE ORIGINAL CELL |
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MITOSIS
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PROCESS BY WHICH THE NUCLEUS OF A CELL DIVIDES INTO 2 NUCLEI AND THE FORMATION OF 2 NEW DAUGHTER CELLS BEGINS
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