Where does the calvin cycle occur? there is a scheme of chloroplast structure. the outer layer of the chloroplast is labeled a. the inner layer of the membrane of the chloroplast is labeled b. a column of little green cisterns is labeled c. one of the green cisterns is labeled d. the space inside the chloroplast between its structures is labeled e. where does the calvin cycle occur? there is a scheme of chloroplast structure. the outer layer of the chloroplast is labeled a. the inner layer of the membrane of the chloroplast is labeled b. a column of little green cisterns is labeled c. one of the green cisterns is labeled d. the space inside the chloroplast between its structures is labeled e. b a e d c?