MCAT Style Quiz Question 6.2

The sarcomere length of isolated heart myoblasts can be measured over time in the laboratory. The myoblasts are maintained in a buffer during the experiment. In a control experiment, Ca2+ and ATP are added to the buffer and the change in sarcomere length is analyzed. If EDTA, a chelating agent that sequesters Ca2+, was included in the buffer, the length change would be __________ compared with a control experiment without EDTA.

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