SCI 220 EXAM STUDY SET WITH CORRECT ANSWERS 100% VERIFIED!!, Exams of Health sciences

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SCI 220 EXAM STUDY SET WITH CORRECT ANSWERS 100% VERIFIED!! Anatomy - ANSWER study of the structure of an organism and the relationships of its parts Physiology - ANSWER the science that deals with the functions of the living organism and its parts List the order of increasing complexity the levels of organization of the body - ANSWER chemical, organelle, cellular, tissue, organ, system Chemical level- ANSWER There are more than 100 different chemical building blocks of nature called atoms. Combinations of atoms form larger chemical groupings, called molecules. Molecules, in turn, often combine with other atoms and molecules to form larger and more complex chemicals, called macromolecules. Unless proper relationships among chemical elements are maintained, death results. Organelle Level- ANSWER Chemical structures may be organized within larger units called cells to form various structures called organelles organelle may be defined as a structure made of molecules organized in such a way that it can perform a specific function. Organelles are the "tiny organs" that allow each cell to live. Organelles cannot survive outside the cell, but without organelles the cell itself could not survive either. Mitochondria—the “powerhouses” of cells that provide energy needed by the cell to carry on day-to-day function-ing, growth, and repair * Golgi apparatus—set of sacs that provides a “packaging” service to the cell by storing material for future internal use or for export from the cell ¢ Endoplasmic reticulum (ER)—network of channels within the cell that act as "highways" for the movement of chemicals and as sites for chemical processing