Skeletal muscle myosin heavy chain is a mechanoenzyme that requires ATP for its function. Other enzymes, such as phosphofructokinase-2, also rely on ATP. How are PFK-2 and myosin Il different in their use of ATP? • View Available Hint(s) Both enzymes use ATP in the exact same way. PFK-2 functions as a kinase, whereas myosin functions as a phosphatase. O PFK-2 catalyzes ATP hydrolysis, whereas myosin does not. Myosin catalyzes ATP hydrolysis, whereas PFK-2 does not. O PFK-2 binds to ATP or ADP + Pj, whereas myosin undergoes covalent modification via phosphorylation. O O O O O
Skeletal muscle myosin heavy chain is a mechanoenzyme that requires ATP for its function. Other enzymes, such as phosphofructokinase-2, also rely on ATP. How are PFK-2 and myosin Il different in their use of ATP? • View Available Hint(s) Both enzymes use ATP in the exact same way. PFK-2 functions as a kinase, whereas myosin functions as a phosphatase. O PFK-2 catalyzes ATP hydrolysis, whereas myosin does not. Myosin catalyzes ATP hydrolysis, whereas PFK-2 does not. O PFK-2 binds to ATP or ADP + Pj, whereas myosin undergoes covalent modification via phosphorylation. O O O O O
Human Physiology: From Cells to Systems (MindTap Course List)
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Author:Lauralee Sherwood
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Chapter8: Muscle Physiology
Section: Chapter Questions
Problem 2TAHL
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
Transcribed Image Text:**Question:**
Skeletal muscle myosin heavy chain is a mechanoenzyme that requires ATP for its function. Other enzymes, such as phosphofructokinase-2, also rely on ATP. How are PFK-2 and myosin II different in their use of ATP?
**Options:**
- Both enzymes use ATP in the exact same way.
- PFK-2 functions as a kinase, whereas myosin functions as a phosphatase.
- PFK-2 catalyzes ATP hydrolysis, whereas myosin does not.
- Myosin catalyzes ATP hydrolysis, whereas PFK-2 does not.
- PFK-2 binds to ATP or ADP + Pi, whereas myosin undergoes covalent modification via phosphorylation.
**Submit Button:**
Below the options, there is a "Submit" button to finalize your selection.
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