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6 Cards in this Set
- Front
- Back
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1. Chemical level
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Atoms, the smallest stable units of matters, can combine to form molecules with complex shapes. The functional properties of a particular molecule are determined by its unique shape and atomic components.
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2. Cellular Level
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Cells are the smallest living units in the body. Their functions depend on organelles, intracellular structures composed of complex molecules. Each organelles has a specific function; for example, one type provides the energy that powers the contractions of muscle cells I. the heart.
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3. Tissue Level
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A tissue is a group of cells and cell products working together to perform one or more specific functions. Heart muscle cells, or cardiac muscle cells ( cardium, heart), form cardiac muscle tissue.
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4 . Organ Level
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An organ consists of two or more tissues working to preform several functions. Layers of heart muscle tissue, in combination with connection tissue (another type of tissue), form the bulk of the wall of the heart, hollow internal organ.
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5. Organ System Level
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Organs interact in organ systems. Each time it contracts, the heart pumps and pushes blood into a network of blood vessels form the cardiovascular system, one of 11 organ systems in the body
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6.Organism Level
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In this case, a human is the highest level of organization. All organ systems of an organisms body work together to maintain life and health.
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