S/MARs are constitutive (continuously bound to the matrix or scaffold), or facultative and change their interactions with the matrix depending on cell type or other conditions.

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#Id: 3305

#Unit 6. System Physiology – Plant

To prevent oxidative damage by • O2 2 , cells have several forms of the enzyme superoxide dismutase, which catalyzes the formation of hydrogen peroxide (H2O2)

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#Id: 5973

#Unit 10. Ecological Principles

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#Id: 5817

#Unit 7. System Physiology – Animal

The zona glomerulosa is controlled via; Renin-angiotensin- aldosterone system

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#Id: 7791

#Unit 2. Cellular Organization

The mechanism for the import of cytoplasmic cargo proteins mediated by a nuclear transport receptor known as importin.

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#Id: 9977

#Unit 4. Cell Communication and Cell Signaling

Unphosphorylated β-catenin translocates to the nucleus.