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and Physiology I gy | / Benchmark 1: Checkpoints 1-3 / Benchmark 1: Checkpoints 1-3 Which of the following statements is/are true about the gap junction? I. It allows the free movement of very large molecules across the cells II. The channels are made up of the cadherin molecules III, It is made up of connexin proteins IV. It is exclusively involved in the movement of the gases Select one: Ca, . I and III O b. Only III O c. Only IV O d. II and IV Next page Q Search