def get_listOfReactions(model):
    """Get list of reactions of a SBML model
    
    Args:
        model (xml.etree.ElementTree.Element): SBML model
    
    Returns:
        xml.etree.ElementTree.Element: list of reactions
    """
    listOfReactions = None
    for e in model:
        if e.tag[0] == '{':
            uri, tag = e.tag[1:].split('}')
        else:
            tag = e.tag
        if tag == 'listOfReactions':
            listOfReactions = e
            break
    return listOfReactions
