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10 Cards in this Set
- Front
- Back
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peptidoglycan
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special class of compounds in which polysacharides are linked to peptide fragments (short chain of amino acids).
-provides main structural support to bacterial cell wall. |
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Cell wall of gram-negative bacteria contain ____
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lipopolysaccharide- complex lipid and polysaccharide responsible for symptoms such as fever and shock.
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Glycocalyzx
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outer surface of many cells has this "sugar coating" composed of polysaccharides bound in various ways to proteins.
-functions in attachment to other cells or as a site for receptors-surface molecules that receive and respond to external stimuli. |
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Some viruses have glycoproteins on their ______ that bind to and invadie their ___
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surface, host cells.
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class of lipids that serve as a major structural component of cell membranes is _____?
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Phospholipids. Contain only two fatty acids attached to the glycerol and third glycerol holds binding site to phosphate group. Make the bilipid layer
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peptide bond forms between
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amino group on one amino acid and carboxyl group on another amino acid.
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antibody is?
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complex glycoprotein with specific regions of attachment for bacteria, viruses, and other microorganisms.
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All cells have common characteristics.
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spherical, polygonal, cubical, or cylindrical. Protoplasm (internal cell contents) is encased in a cell or cytoplasmic membrane. They have chromosopes containing DNA and ribosomes for protein synthesis. Complex in funciton.
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prokaryotic cells
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bacteria and archaea. no nucleus and no organelles.
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cells as living entities:
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-reproduction
- growth -metabolism -movement -cell support -transport substances in and out of cell |
