UNIT 5-THE MITOTIC CELL CYCLE🤎

Question 1

differentiate between DNA and a gene

Answer 1

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Question 2

what makes up a chromosome? describe the structure of a chromosome (5) (DNA, histone proteins, sister chromatids, centromere, telomere), use a drawing if necessary

Answer 2

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Question 3

state the phases of the cell cycle in the order of occurrence

Answer 3

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Question 4

explain the phases making up the interphase stage of the cell cycle (3)

Answer 4

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Question 5

explain the m phase of the cell cycle (2)

Answer 5

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Question 6

explain the c phase of the cell cycle (3)

Answer 6

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Question 7

state the four stages of mitosis in order

Answer 7

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Question 8

using diagrams, explain IN DETAIL what happens during each stage of mitosis (including early and late prophase): include the behaviour of the nuclear envelope, the cell surface membrane and spindle)

Answer 8

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Question 9

explain what centrosomes, kinetochores and microtubules are in relation to mitosis
use a labelled diagram to show centrosomes , kinetochores and microtubules and explain their roles during mitosis

Answer 9

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Question 10

explain four importances of mitosis

Answer 10

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Question 11

explain the role of telomeres in detail

Answer 11

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Question 12

outline the roles of stem cells in cell replacement and tissue repair

Answer 12

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Question 13

explain in detail how uncontrolled cell division can result in the formation of a tumour, use diagrams if necessary

Answer 13

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