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Biology honors-Cellular Reproduction > Cell Cycle > Flashcards

Cell Cycle Flashcards

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0
Q

Interphase 3 stages

A

Gap1
Synthase
Gap2

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1
Q

Three main phases of cell cycle

A

Interphase
Metaphase
Cytokinesis

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2
Q

Interphase what is it?

A

Cell prepares for mitosis

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3
Q

Interphase how much of cells life

A

75-80%

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4
Q

G1 what happens

A

Cell performs normal functions and grows

Metabolic activity

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5
Q

S what happens

A

Cell grows
DNA is replicated
Makes 2 copies of each chromosome

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6
Q

G2

A

Cell finishes growing
2 centrosomes appear int h cytoplasm and move to opposite sides

Organelles replicate

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7
Q

Mitosis 5 phases

A 
Prophase
Pro metaphase 
Metaphase
Anaphase
Telophase
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8
Q

Mitosis what happens

A

Microtubule apparatus separates chromatids and forms two sets of nuclear data

Genetic material is sent to each daughter cell

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9
Q

Prophase what happens

A

Chromosomes become visible, shorter, thicker, condensed

Chromosome ‘x’ structure forms through condensation process

Microtubules appear from centrosomes

Nucleolus disappears

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10
Q

Pro metaphase what a happens

A

Microtubules attach to chromosomes at kinetochore

Nuclear membrane is broken down

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11
Q

Metaphase what happens

A

The chromosomes line up at the equator

Spindles are fully formed and attach to each sister chromatid

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12
Q

Anaphase what happens

A

Sister chromatids separate and are pulled to opposite sides

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13
Q

Telophase what happens

A

Nuclear membrane forms around the two clusters of chromosomes

Spindle fibers break up

Chromosomes uncondense and uncoil

nucleolus reforms

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14
Q

Cytokinesis what is it

A

Makes two daughter cells

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15
Q

Cytokinesis what happens

A

Cytoplasm splits and organelles are put in the new cells

16
Q

Animal cytokinesis

A

A contracting ring of actin constricts the center of the cell and divides it into 2 cells

Cleavage furrow

17
Q

Plant cytokinesis

A

phragmoplast is arranged between the daughter nuclei.
Vesicles from the Golgi apparatus travels along the Microtubules and deliver their contents to form cell plates

Cell plate

18
Q

Checkpoints

A

Regulate the process

Let the next step happen or hold it back

19
Q

G1 checkpoint

A

Controls whether cell divides,Delays division,or enters resting stage

20
Q

G2 checkpoint

A

Success of DNA replication is assessed

21
Q

M checkpoint where

A

mitosis

Biology honors-Cellular Reproduction (6 decks)

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