Cell Small Molecules Quiz
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Questions and Answers

Proteins are long polymers of ______

amino acids

The nucleic acids, DNA and RNA, are polymers of ______

nucleotides

The entire collection of small molecules in a given cell has been called that cell’s ______

metabolome

Living cells include very large molecules, such as proteins, nucleic acids, polysaccharides, and ______

<p>lipids</p> Signup and view all the answers

The polysaccharides are polymers of simple sugars such as ______

<p>glucose</p> Signup and view all the answers

Macromolecules themselves may be further assembled into ______ complexes

<p>supramolecular</p> Signup and view all the answers

Amino acids are compounds of carbon with a variety of ______ groups

<p>functional</p> Signup and view all the answers

Nucleic acids are organized around carbon and can form bonds with oxygen and ______ atoms

<p>nitrogen</p> Signup and view all the answers

Proteins are polyfunctional biomolecules containing different kinds of ______ groups

<p>functional</p> Signup and view all the answers

Membrane lipids have carbon skeletons forming linear chains, branched chains, and ______ structures

<p>cyclic</p> Signup and view all the answers

Carbohydrates can be regarded as derivatives of hydrocarbons, with hydrogen atoms replaced by a variety of ______ groups

<p>functional</p> Signup and view all the answers

Functional groups confer specific chemical properties on biomolecules, such as hydroxyl groups in ______

<p>alcohols</p> Signup and view all the answers

Proteins and nucleic acids are informational macromolecules: each protein and each nucleic acid has a characteristic information-rich subunit sequence. Some oligosaccharides, with six or more different sugars connected in branched chains, also carry ______.

<p>information</p> Signup and view all the answers

A carbon-containing compound commonly exists as stereoisomers, molecules with the same chemical bonds but different stereochemistry—that is, different ______.

<p>configuration</p> Signup and view all the answers

Biological interactions between molecules are stereospecific: the “fit” in such interactions must be stereochemically ______.

<p>correct</p> Signup and view all the answers

The three-dimensional structure of biomolecules is of the utmost importance in their biological interactions: reactant with enzyme, hormone with its receptor on a cell surface, antigen with its specific ______.

<p>antibody</p> Signup and view all the answers

The lipids, greasy or oily hydrocarbon derivatives, are part of the membrane ______.

<p>lipids</p> Signup and view all the answers

The synthetic reactions that occur within cells, like the synthetic processes in any factory, require the input of ______.

<p>energy</p> Signup and view all the answers

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