Yeast α-Factor ATPase and MDR ATPase Are 2 Members of a Superfamily

question 18

Multiple Choice

Yeast α-factor ATPase and MDR ATPase are 2 members of a superfamily of transport proteins.Which of the following do they both actively transport?

• A)H⁺ to dissolve bone mineral
• B)Ca²⁺ into the sarcoplasm
• C)a broad group of diverse organic molecules across membranes
• D)Mg²⁺ against a concentration gradient

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