The document summarizes the history and components of cells. It describes how early scientists like Van Leeuwenhoek, Hooke and Brown discovered cells and cell structures using microscopes. It then outlines the cell theory developed by Rudolf Virchow stating that cells are the basic unit of structure and function and that new cells are produced from existing cells. The summary then provides details on the generalized functions of cells and describes the structures and functions of key animal and plant cell organelles such as the nucleus, mitochondria, chloroplasts and cell membrane.

1. Chapter 2 Cell

12. Animal Cell Nuclear pore Nuclear Membrane Nucleolus Chromatins Nucleus Centriole Pinocytic Vesicle Lysosome Cytoplasm Cell Membrane Vacuole Ribosomes Mitochondrion Smooth Endoplasmic Reticulum Golgi Complex Rough Endoplasmic Reticulum Nucleoplasm

28. Nucleus control center of the cell contains DNA which directs the synthesis of proteins by the cell Mitochondrion carries on the process of cell respiration converting glucose to ATP energy the cell can use Endoplasmic Reticulum transport channels within the cell Ribosome found on the endoplasmic reticulum and free within the cell responsible for the synthesis of proteins for the cell cell membrane selectively regulates the materials moving to and from the cell

29. Food Vacuole stores and digests food Contractile vacuole pumps out wastes and excess water from the cell Chloroplast found in plant cells and algae carries on the process of photosynthesis Cell wall surrounds and supports plant cells

30. Some Cell Organelles Cell Organelle Function nucleus control center of the cell contains DNA which directs the synthesis of proteins by the cell mitochondrion carries on the process of cell respiration converting glucose to ATP energy the cell can use endoplasmic reticulum transport channels within the cell ribosome found on the endoplasmic reticulum and free within the cell responsible for the synthesis of proteins for the cell cell membrane selectively regulates the materials moving to and from the cell food vacuole stores and digests food contractile vacuole pumps out wastes and excess water from the cell chloroplast found in plant cells and algae carries on the process of photosynthesis cell wall surrounds and supports plant cells

31. Plant Cell Animal Cell

32. Vacuole Thylakoid membrane Starch grain Chloroplast Plasmodesmata Cell Wall

34. http://www.cellsalive.com/cells/cell_model.htm