Vacuoles in cyanobacteria help the cells float in water by
Read the following statements and identify the correct options given.
(A) Sap vacuoles - contain digestive enzymes by which nutrients are digested
(B) Contractile vacuoles - take part in osmoregulation and excretion
(C) Food vacuoles - store and concentrate mineral salts as well as nutrients
(D) Air vacuoles - store metabolic gases and help in buoyancy of cells