Question

part 4: real - world connection - bonds in living organisms
proteins in your body are made of long chains of amino acids joined by peptide bonds (a type
of covalent bond). this process is called protein synthesis.
fill in the blank: proteins are built when amino acids bond together through

bonds during a process called

synthesis.
part 5: real - world connection - polymers in daily life
plastics, nylon, rubber, and even dna are polymers - large molecules made of repeating
smaller molecules bonded together.
question: which of the following is not a polymer?
a. dna
b. proteins
c. water (h₂o)
d. plastics

Explanation:

Part 4:

From the given text, it says proteins are made of amino acids joined by peptide bonds (a type of covalent bond) in a process called protein synthesis. So we fill the blanks with "peptide" and "protein" based on the provided information.

A polymer is a large molecule made of repeating smaller molecules. DNA is a polymer (nucleotides repeat), proteins are polymers (amino acids repeat), plastics are polymers. Water ($\ce{H_2O}$) is a simple molecule, not made of repeating smaller molecules, so it's not a polymer.

Answer:

peptide; protein

Part 5: