F222 - 2.1.1.3 - The cell cycle and apoptosis 3.0 / 5 based on 2 ratings ? Human BiologyCellular processes and structureASOCR Created by: hayley taylorCreated on: 24-11-12 23:00 What are the 3 stages of interphase? growth, synthesis and growth 1 of 18 What are the four stages of mitosis? Prophase, Metaphase, Anaphase and telophase 2 of 18 what controls the timing and duration of the cell cycle? protein complexes called 3 of 18 Name the two protein complex involved in the cell cycle? cyclins and cyclin-dependant kinases 4 of 18 Name the 3 important checkpoints in the cell cycle? Growth 1, Growth 2 and metaphase 5 of 18 cyclins and CDK's are affected by signals where in the cell? inside and outside the cell 6 of 18 name two outside factors which could affect cyclins and CDK's? hormones and drugs 7 of 18 What do outside factors do to cyclins and CDK's? bind to potein receptors on the surface of the plasma membrame 8 of 18 What is the process called when cells kill themselves? apoptosis 9 of 18 How is apoptosis controlled? by signals inside or outside the cell 10 of 18 What happens after the cell shrinks? the DNA and protein in the nucleus breaks down 11 of 18 what happens after the mitochondria breaks down? the cell breaks up into smaller fragments 12 of 18 are the smaller fragments of the cell membrane bound? yes 13 of 18 The phospholipid which is present on the inside of the membrane and moves to the outside of the membrane? phosphatidylserine 14 of 18 What type of cells have protein receptors which recognize phosphatidylserine? macrophages 15 of 18 what do the macrophages do one they have binded to the receptors? engulf the membrane bound fragments 16 of 18 what are the two main reasons for cells committing apoptosis? cells that are infected with viruses or have DNA damage 17 of 18 3 examples of apoptosis in normal development? the skin inbetween the fingers and toes, shedding of the uterus during menstruation and the death of surplus cells around synapses 18 of 18
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