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A Level Biology: Topic 2 (Edexcel) > Mitosis > Flashcards

Mitosis Flashcards

1
Q

Is it sexual or asexual reproduction?

A

Asexual

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2
Q

What are the phases of cell division?

A 
Interphase
Prophase
Metaphase
Anaphase
Telophase
Cytokinesis
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3
Q

What is the first stage of cell division?

A

Interphase

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4
Q

What are the parts of interphase?

A

G1
S
G2

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5
Q

What is the G1 part of interphase?

A

The cell perfroms normal functions and grows from it’s last division to normal size

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6
Q

What is the S part of interphase?

A

The chromasomes replicate and become double stranded chromatids

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7
Q

What is the G2 part of interphase?

A

Organelles and other materials needed are synthesized so there is 2 of everything

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8
Q

What are cyclin-dependant kinases?

A

Enzymes involved in controlling the cell cycle

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9
Q

What is the second stage of cell division?

A

Prophase

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10
Q

What happens during prophase?

A

The chromasomes coil up- each chromasome consists of two daughter chromatids joined at the centromere
Nucleous breaks down and centrioles pull apart to form spindle fibres

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11
Q

What is the third stage of cell division?

A

Metaphase

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12
Q

What happens during metaphase?

A

The centrioles move to opposite poles and the chromatids line up along the equator

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13
Q

What is the fourth stage of cell division?

A

Anaphase

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14
Q

What happens during anaphase?

A

The centromeres break and the chromasomes are pulled towards opposite poles of the cell

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15
Q

What is the fifth stage of cell division?

A

Telophase

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16
Q

What happens during telophase?

A

The spindle fibres break down and the chromasomes and nuclear envelope reform
Chromasomes unravel

17
Q

What is the last stage of cell division?

A

Cytokenesis

18
Q

What happens during cytokenesis?

A

Contractile fibres pinch off the membrane to form two seperate cells

19
Q

What are the different types of asexual reproduction?

A

Producing spores
Regeneration
Budding
Propagation

20
Q

How do plants reproduce by producing spores?

A

Sporulatio where spores are releaced that are each capable of growing into a new plant and can be spread over great distances

21
Q

How do things reproduce by regeneration?

A

Organisms can replace body parts that have been lost by taking a clone from their surviving tissue

22
Q

How do things reproduce by budding?

A

There is an outgrowth from the parent individual of a smaller but identical thing. It eventually detatches and lives independently

23
Q

What is the most accurate way of measuring the growth of an organism?

A

Dry mass

A Level Biology: Topic 2 (Edexcel) (4 decks)

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