The Ca²⁺-ATPase Structure Is Like Many of the Other Active

question 2

Multiple Choice

The Ca²⁺-ATPase structure is like many of the other active transport proteins in that it has all of the components EXCEPT:

• A) transmembrane domain of ten α-helical segments.
• B) a large cytoplasmic domain with nucleotide binding domain.
• C) a phosphorylation domain.
• D) an actuator domain.
• E) all are true.

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Definitions:

Physical Weathering

The mechanical breakdown of rocks and minerals into smaller pieces by physical forces without changing their composition.

Oxidation

The chemical process during which a material combines with oxygen.

Frost Wedging

Process by which jointed rock is pried and dislodged by the expansion of ice during freezing.

Weathered Limestone

Limestone that has undergone chemical or physical breakdown by weathering processes, changing its texture and composition.