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20 Cards in this Set

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MATERIALS ENTER AND LEAVE THE CELL IN 3 WAYS
DIFFUSION, OSMOSIS, ACTIVE TRANSPORT
DIFFUSION
THE PROCESS BY WHICH MOLECULES OF A SUBSTANCE MOVE FROM AREAS OF HIGHER CONENTRATION TO LOWER CONCENTRATION
SELECTIVELY PERMEABLE
CELL MEMEBRANE THAT PERMITS ONLY CERTAIN SUBSTANCES INTO THE CELL (OXYGEN, WATER, FOOD) NOT ALLOWED- WASTE PRODUCTS AND CARBON DIOXIDE
OSMOSIS
THE DIFFUSION OF WATER INTO OR OUT OF A CELL
IF YOU PUT A CELL INTO A GLASS OF SALT WATER WHAT HAPPENS TO THE CELL?
WATER LEAVES THE CELL AND THE CELL SHRINKS- IF TOO MUCH WATER LEVES THE CELL IT WILL DRY UP AND DIE
IF YOU PUT A CELL INTO A GLASS OF PURE WATER WHAT HAPPENS TO THE CELL?
WATER ENTERS THE CELL AND THE CELL SWELLS- IF TOO MUCH ENTERS- IT CAN BURST
WHICH PROCESS(ES) REQUIRE ENERGY?
ACTIVE TRANSPORT
WHICH PROCESS (ES) DOES NOT REQUIRE ENERGY
DIFFUSION AND OSMOSIS
ACTIVE TRANSPORT
PROCESS THAT "CARRIES" SUBSTANCES INTO THE CELL- **REQUIRES ENERGY
IN ORDER FOR THE NUMBER OF CELLS TO INCREASE, AND FOR IT TO GROW WHAT NEEDS TO HAPPEN?
CELL DIVISION
CELL DIVISION OCCURS IN WHAT?
STAGES OR PHASES
PHASE 1
-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)
CHROMATIN
CHROMOSOMES THAT APPEAR LIKE THREADLIKE COILS
MOST PLANT CELLS DO NOT HAVE WHAT?
CENTRIOLES
PHASE 2
-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
PHASE 3
-METAPHASE
-CHROMOSOMES BEGIN TO ATTACH TO THE SPINDLE
-CHROMOSOMES ARE ATTACHED TO THE SPINDLE BY THE CENTROMERE
PHASE 4
-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
PHASE 5
-TELOPHASE
-END OF MITOSIS
-MUCLEAR MEMBRANE FROMS AROUND EACH SET OF CHROMOSOMES AT THE END OF THE CELL
PHASE 6
-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
MITOSIS
PROCESS BY WHICH THE NUCLEUS OF A CELL DIVIDES INTO 2 NUCLEI AND THE FORMATION OF 2 NEW DAUGHTER CELLS BEGINS