The Cell Cycle Flashcards

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1
Q

What are the 3 main stages in the cell cycle?

A

-Interphase
-Mitosis
-Cytokinesis

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2
Q

What are the 3 phases of the Interphase?

A

-1st Growth Phase (G1)
-Synthesis Phase
-2nd Growth Phase (G2)

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3
Q

What are the 4 stages in Mitosis?

A

-Prophase
-Metaphase
-Anaphase
-Telophase

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4
Q

What happens in Interphase in the G1 phase?

A

-Organelles such as Mitochondria and Chloroplasts grow and Divide.
-Protein Synthesis

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5
Q

What happens in Interphase in the S phase?

A

DNA is replicated

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6
Q

What happens in Interphase in the G2 phase?

A

Checked for errors.

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7
Q

What functions occur in the Interphase?

A

Normal Metabolic Functions

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8
Q

What are the 2 main stages in Cell Division?

A

Mitosis
Cytokinesis

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9
Q

What happens in Mitosis?

A

Nucleus divides

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10
Q

What happens in Cytokinesis?

A

Cytoplasm and Membrane Separate.

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11
Q

What happens in the G0 phase?

A

-Where the cell comes out of the cell cycle.
-Can be permanent or temporary.

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12
Q

What are the 2 reasons for G0?

A

-Differentiation
-DNA has become damaged.

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13
Q

Why does G0 occur due to Differentiation?

A

-A cell becomes specialised to carry out a particular function.
-This can make it unable to divide, it will carry out its function indefinitely.

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14
Q

Why does G0 occur due to DNA becoming damaged?

A

-Cell Division is no longer viable. It enters a state of permanent cell arrest.
-Most cells will do this as they only divide a set number of times.

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15
Q

What are the 3 checkpoints in the Cell Cycle?

A

-G1 Checkpoint
-G2 Checkpoint
-Spindle Assembly Checkpoint

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16
Q

What does the G1 checkpoint check for?

A

-Cell Size
-Nutrients
-Growth Factors
-DNA damage

17
Q

What does the G2 checkpoint check for?

A

-Cell Size
-DNA Replication
-DNA Damage

18
Q

What does the Spindle Assembly Checkpoint check for?

A

-Chromosomes Attachment to spindle.

19
Q

What is the Spindle Assembly Checkpoint also known as?

A

Metaphase Checkpoint