HUMNNTR 2210 Lecture Notes - Lecture 6: Cell Metabolism, Cell Nucleus, Cell Membrane
9 Sep 2016
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Document Summary
Chapter 3: the human body: a nutrition perspective. Organization of the body: cells, tissues, organs, organ systems. Cells need a constant supply of energy, water, building supplies, and chemical regulators. Getting an adequate supply of nutrients to the body"s cells begins with healthy diet. Section 3. 2: the cell: structure, function, and metabolism. Cell basic structural and functional component of life. Different types of cells are specialized to perform particular functions. All cells are derived from preexisting cells. Holds cellular contents (cytoplasm and organelles) together. Regulates flow of substances in and out of cell. Cholesterol is a part of each cell membrane. Protein structures act as transport vehicles and function as enzymes that facilitate chemical processes. A combination of fluid material and organelles within the cell, not including the nucleus. Energy for use by the cell can be produced by chemical processes that occurs in the cytoplasm.
