Which cell organelle is absent in the leaves of onion?

Step-by-step solution

There are many differences between animal and plant cells. These are as follows; ANIMAL CELL PLANT CELL 1 . Cell wall is absent Cell wall is seen outside the cell membrane 2 . Vacuoles are small and numerous Vacuoles are large and normally single 3 . Centrioles are present Centrioles are absent 4 . Nucleus is in the centre Nucleus to one side. 5 . Chloroplasts are absent Chloroplasts are present Onion being a plant cell lacks centrioles.