NURS 2533 Chapter Notes - Chapter 1: Nuclear Membrane, Glycocalyx, Euchromatin
18 Jan 2017
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Unit 1: cell and tissue function: cell structure and function. Vehicles for transmitting genetic information that defines the organism. Tissues: aggregates of cells with similar specialized functions. Organs: tissues the cells of different tissues and organs vary in structure and function, but are similar in their ability to exchange materials with their immediate environment, obtain energy from organic nutrients, synthesize complex molecules, and replicate themselves. Most diseases begin at the cellular level: a disease can affect the cells of a single organ, the cells of a particular tissue type, or the cells of the entire organism. Under a light microscope, (3) primary components of the eukaryotic cell are evident: plasma membrane, nucleus, cytoplasm. Numerous other structures are visible by higher magnification electron microscopy. S e cre tory ve s icle s. Nucle a r e nve lope s urrounding nucle us. Cell membrane: a dynamic and fluid structure consisting of an organized arrangement of lipids carbohydrates, and proteins.
