EDTA Is a Chemical That Binds to and Removes (Chelates)divalent

question 54

Multiple Choice

EDTA is a chemical that binds to and removes (chelates) divalent cations from solution. Treatment of isolated axonemes with EDTA leads to the removal of the inner and outer arms extending from the A microtubules of the axoneme. Which of the following statements would appear to be true based on this information?

• A)Potassium ions are required for dynein to bind to the A tubules of the axoneme.
• B)Chlorine ions are required for dynein to bind to the A tubules of the axoneme.
• C)Magnesium ions are required for dynein to bind to the A tubules of the axoneme.
• D)Magnesium ions are required for tubulin to bind to the A tubules of the axoneme.
• E)Sodium ions are required for tubulin to bind to the A tubules of the axoneme.

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