Cell cycle and mitosis

kcurcin's version from 2017-04-07 02:48

Section 1

Question Answer
what is the cell cyclea period of growth followed by nuclear division and cytokinesis
what does mitosis dodivides replicated DNA equally and precisely
what are the two main components of the cell cycleinterphase and mitotic phase
what does interphase consist ofG1, S and G2
what does mitotic phase consist ofmitosis and cytokinesis
what happens in G1cell grow, produces more protein and organelles
what happens in S phaseDNA is replicated
What happens in G2 phasecell grows further, in preparation for division (needs to be larger in order to divide into two)

Section 2

Question Answer
what happens in prophaseDNA condenses, sister chromatids are present, mitotic spindle begins to form as microtubules develop from centrosomes that move towards poles
what happens in pro-metaphasenuclear membrane breaks down, kinetochore forms at centromere, mitotic spindle continues to develop and starts to attach
what are kinetochoresproteins microtubules attach to
where does the nuclear membrane goin stays safe in vesicles
what happens during anaphasecohesion proteins are cut by separase, microtubules are shortened by depolymerizing and motor protein, sister chromatids are pulled apart
what motor proteins help with the depolymerization of the microtubule combination of dyneins and kinesins
what is the purpose of non connecting spindlesmaintain region of overlap
what do kinesins have2 sets of feet that move in opposite directions and help elongate the cell
what happens in telophasecytoplasm begins to divide, nuclear envelope begins to reform over uncondensing DNA
what indicates telophasecleavage furrow
describe cytokinesis in animal cellsdivision by contractile ring, acting and myosin help break cell apart
describe cytokinesis in plantsno contractile ring or cleavage, a cell plate is formed in the middle separating the cytoplasm

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