Assessment 1: Class 5 Flashcards by Devin W. Burdo

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Q

What is needed in G0 (Gap 0)?

A

Cells need a stimulus to start the cell cycle

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Q

What occurs during G1 (Gap 1)?

A

Takes 8-10 hours
New protein
More organelles
Increase in size

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Q

What happens at the first checkpoint?

A

Is there enough room?
Is there enough food?
Are there enough nucleotides? (GATC)

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Q

What takes place during S (synthesis)?

A

Takes 6-8 hours

- DNA is replicated

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Q

What takes place during G2 (Gap 2)?

A

Takes 3-4 hours
Check DNA
Make more protein for next phase

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Q

What is CDK?

A

Cyclin Dependent Kinase

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Q

What is the purpose of CDK?

A

CDK binds phosphates to things

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Q

What does it mean if a word ends in -ase

A

That is an enzyme

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Q

How long do red blood cells live for?

A

About 2 months

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Q

What cells are constantly growing? (5)

A

Hair
Nails
Skin
Blood
Muscle cells (if you work out a lot)

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Q

Phosphoralation

A

Attaching phosphates from the environment onto things

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Q

What happens when CDK attaches to cyclin?

A

The cell cycle is turned “on”

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Q

What are the “Gate Keeper Proteins”?

A

P16

- P53

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Q

What are the most frequently muted proteins in cancer cells?

A

P53

- Rb

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