Question

purpose: to explore the four classes of organic molecules and practice building the monomers and polymers of each, and to become familiar with some of the functional groups that make up these molecules.
materials: 14 carbon (c) atoms—black 4 nitrogen (n) atoms—blue 9 oxygen (o) atoms—red 32 hydrogen (h) atoms—white 58 electron pairs—white tube (note diff lengths)
procedure: working within your group, answer all questions and build your group’s assigned model.
part a: class of organic compound: protein
structure diagram: general structure of amino acids (monomer)

1. the bond that joins these monomers together is specifically called a peptide bond.
2. two of these monomers joined together are called a dipeptide.
3. many of these monomers joined together are called a polypeptide.
4. when one or more of the above (#3) molecules clump together and it can then do a job in living things, it’s called a functional protein.

four molecular diagrams: glycine, alanine, threonine, valine, with
\ groups circled

1. list all the elements in your monomer. then rank them in terms of which is most abundant (#1), which is second-most abundant (#2), and so on.
2. what are the uses of this class of organic compound in living things? list as many as you can.

Explanation:

Question 1

The monomer of proteins is amino acids, and the bond that links amino acids together is a peptide bond, formed via dehydration synthesis between the carboxyl group of one amino acid and the amino group of another.

When two amino acid monomers are joined by a peptide bond, the resulting molecule is called a dipeptide (di - meaning two, referring to the two amino acid units).

Many amino acid monomers joined together by peptide bonds form a polypeptide. "Poly - " indicates many, so a long chain of amino acids linked by peptide bonds is a polypeptide.

Answer:

Peptide Bond

Question 2