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Home Q & A Board Biology-Related Homework Help General Biology
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aschramm aschramm
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6 years ago
The bacteria primarily responsible for dental caries is Streptococcus mutans.
 
  Indicate whether this statement is TRUE or FALSE.


Phospholipids are non-polar molecules.
 
  Indicate whether this statement is true or false.


The characteristic common to all lipids is their
 
  A. solubility in organic solvents.
  B. hydrophilic nature.
  C. large size.
  D. hydrophobic nature.
  E. solubility in organic solvents AND hydrophobic nature.


As DNA is always double-stranded, RNA is always single-stranded.
 
  Indicate whether this statement is true or false.


Which is (are) true of lipids?
 
  A. They are a major structural element of all cell membranes.
  B. They act as gatekeepers of the cell.
  C. They demark the inside vs. the outside of the cell.
  D. They are a heterogeneous group of molecules.
  E. All of the choices are correct.
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ajbatisteajbatiste
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6 years ago
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aschramm Author
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#2
6 years ago
tremendous help
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