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Biology 16 Online
OpenStudy (anonymous):

What are internal and external regulators? A) lipids B) carbohydrates C) proteins

OpenStudy (abhisar):

Do u know what regulators is ?

OpenStudy (anonymous):

Negative .

OpenStudy (anonymous):

Its not proteins, i think its lipids

OpenStudy (abhisar):

Internal: Proteins that respond to events inside the cell are called Internal Regulators They allow the cell cycle to proceed only when certain processes have happened inside the cell Internal An example of an internal regulator is; Cyclin . Cyclins are rhythmic fluctuations in the activity of the cell cycle, which controls molecules pace the events of the cell cycle.

OpenStudy (anonymous):

no i think its protins..

OpenStudy (abhisar):

External: Proteins that respond to events outside the cells are called External Regulators External regulators direct cells to speed up or slow down the cell cycle External An example of an external regulator is; Platelet-Derived Growth Factors or PDGF. PDGF is essential for healing wounds. In this picture, PDGF is duplicating red blood cells to increase the healing process of whatever the injury may be

OpenStudy (anonymous):

i guess it is

OpenStudy (anonymous):

*proteins

OpenStudy (abhisar):

Yes they are both proteins

OpenStudy (anonymous):

Thanks !

OpenStudy (anonymous):

if you are on plato it is protiens

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