This eBook contains detailed description of the chapter related to class exam and other exam.The salient features are : Introduction to Cell Cell theory Cell size, shape and number Cell structure and function Protoplasm Plasma membrane Cell wall Cytoplasm Nucleus Prokaryotic and eukaryotes Prokaryotic cells Eukaryotic cells Cell organelles Endoplasmic reticulum Golgi complex or Golgi apparatus Lysosomes Ribosomes Vacuoles Mitochondria Plastids Centrosome Differences between plant cell and animal cell