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.