Biology The one that stores calcium is __________? Options:A. SarcolemmaB. SarcoplasmC. Sarcoplasmic reticulumD. CytosolView AnswerC. Sarcoplasmic reticulum Continue Reading Previous: _________________ cells of phloem are directly involved in transport of organic solutes?Next: Exposure to low temperature stimulates plants to flower. This is called___________?