PLS 170C1 Lecture Notes - Lecture 3: The Plant Cell, Protoplast, Archaea
14 Jan 2017
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Document Summary
Cells: the simplest collection of living matter. Living organisms are composed of cells derived from preexisting cells. Cells perform various tasks for living organisms: transform matter into energy, store hereditary information, catalyze enzymatic reactions, reproduce, respond to their environment. The cell is the unit of function in all living organisms. Two types of cells: prokaryotic (primitive nucleus)- archaebacteria and eubacteria have this type of cell, eukaryotic (true nucleus)-protista, fungi, plants, and animals have this type of cell. Cell wall surrounds the cell providing structural support and maintains cell shape. Protoplast biochemical factory consisting of everything inside the cell and interior to the cell wall. Plasma membrane -separates cell interior from the external environment. Cytoplasm - site of most cell functions consisting of: organelles - sites of speci c. Saturday, january 14, 2017 cell activities (e. g. chloroplast, vacuole, etc. ) Plants and plant cells are made of 4 categoreis of large molecules (macromolecules): Polymers of simple sugars such as glucose.
