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10 Cards in this Set

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  • Back
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.
Cell wall of gram-negative bacteria contain ____
lipopolysaccharide- complex lipid and polysaccharide responsible for symptoms such as fever and shock.
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.
Some viruses have glycoproteins on their ______ that bind to and invadie their ___
surface, host cells.
class of lipids that serve as a major structural component of cell membranes is _____?
Phospholipids. Contain only two fatty acids attached to the glycerol and third glycerol holds binding site to phosphate group. Make the bilipid layer
peptide bond forms between
amino group on one amino acid and carboxyl group on another amino acid.
antibody is?
complex glycoprotein with specific regions of attachment for bacteria, viruses, and other microorganisms.
All cells have common characteristics.
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.
prokaryotic cells
bacteria and archaea. no nucleus and no organelles.
cells as living entities:
- growth
-cell support
-transport substances in and out of cell