They are called protons, neutrons and electrons
Yes all organelles are in fact smaller than cells. By definition, an organelle is a specialized structure that resides within a cell.
The nucleus
Cells
Cell parts are called organelles.
A cell consists of three main parts---the nucleus, the cell "stuff" called cytoplasm, and the outer cell membrane.
I think there called cell parts
A neuron is a nerve cell, so it has all the parts of an animal cell, plus some specialized parts: axon, dendrites, and perhaps a myelin sheath for insulation.
These specialized cells are called neurons.
mitochondrion
mitochondrion
Organelles
Mitochondrion is the answer