Sentence Examples with the word protoplast

If the access of oxygen to a protoplast is interfered with its normal respiration soon ceases, but frequently other changes supervene.

No doubt the primary object of the cell-wall of even the humblest protoplast is protection, and this too is the meaning of the coarser tegumentary structures of a bulkier plant.

The protoplast is uninucleate and vacuolate, and contains chromatophores of a brownish colour.