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Select all that are true regarding a resting muscle fiber.
The charge difference across the sarcolemma is zero

There is more sodium outside the cell as compared to the sarcoplasm

Chemically-gated ion channels are open

Voltage-gated ion channels are closed

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Answer:

There is more sodium outside the cell as compared to the sarcoplasm.; Voltage-gated ion channels are closed.

Explanation:

The Na+/K+ ATPase pump extrudes 3 Na+ ions to the extracellular and 1 K+ ion is pumped inside the cell. This leaves the interior of the cell negative.

To maintain the negative charge Voltage-gated potassium channels close the voltage-gated calcium channels.  

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