Human Biology BY1 3.0 / 5 based on 1 rating ? Human BiologyHuman, animal and plant physiologyASWJEC Created by: Leanne CollinsCreated on: 28-04-13 18:09 75210431968 Across 1. An aggregation of similar cells carrying out the same function (6) 5. A cell that contains single chromosomes (HAlf HAploid) (sperm and egg cells are haploid) (7, 4) 6. Particales within a cell made of RNA and protein used in the formation of proteins (protein synthesis) (9) 8. Chromotids elongate, spindle fibres disintergrate, nuclear envelope re-forms and the nucleolus re-forms (9) 9. Stage within mitosis whereby the chromosomes become visible and the centrioles move to the poles, nucleolus dissapears and nuclear envelope breaks down (8) 10. Microtubules attach to centremeres and the chromosomes are lined up to the equator of the cell (9) Down 2. Movement of substances in or out of a cell along the concentration gradient (9) 3. A type of cell division that results in two daughter cells each the same as the parent nucleus, typical of ordinary tissue growth. (7) 4. DNA is replicated, organelles grow and divide, and energy stores increased (10) 7. Centromeres divide into two and chromotids seperate along the spindles moving to opposite poles (8)
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