Biology Questions and Answers

Biology Questions and Answers

6. Does every amino acid have
   a central carbon? To which
   organic group is that central
   carbon bound?

A carboxyl group –COOH, an amingroup – NH e
and a variable ra^2 , an atom odical -R necessarilyf hydrogen –H are^
bound to the acid. central carbon of an amino

7. How can amine groups be
   classified?

Amines can be classified into primary
amines, those radical) is attached to which to a –NHone –R (variable
secondary amines, those where one^2 ,^

hydrogen of NHanother –R, thus having two –R, and 2 is substituted by (^)
tertiary amines, those with no hydrogen
bound to the R. nitrogen and with three –

8. What is the structural
   representation of a carboxyl
   group?

Carboxyl gto one hydroxyl groups havroup by a simple a carbon attachee bondd

and to one oxygen by a double bond.The other site of binding in the carbon is (^)
available to other chemical entities.

9. What is the structural flat
   representation of an amino
   acid molecule?

An amino acid has a central carbon to

which a carband to which a oxyl group binds on a side–R (variable radical)

binds on the opposite side. In the

perpendicular dan amine group binds the central carbonirection of those ligands (^)
on one side and a hydrogen binds on
the opposite side.
The bind of the carboxyl group to a
carbon where a hydrogen is laterallyattached is responsible for the name (^)
“acid” in amino acids. The bound of an
amine group in the central carbprovides the name “amino”. on

10. What is the importance of
    the –R group (variable
    radical) in an amino acid
    molecule?

The –R group, also called a chain, is the variable part of the aminolateral (^)
acid molecule. The –R group can be a
complex carbmethyl group (forming onic chain, a then the aminosubstituting (^)
acid ala(forming glycinnine) or even only a hydrogene, the simplest amino
acid). So the –R group is important
because amino acids.it is the differentiation factor of

11. How can the binding of
    two amino acids for the
    peptide formation be
    described?
    A peptide is formed when a carthe carboxyl group of one amino bon fromacid is
    connected to the nitrogen of the amine
    group of another amino acid. During
    http://www.biology-questions-and-answers.com