Question

nucleic acids
the fourth class of organic molecules is the nucleic acids. this class involves the genetic materials, dna
and rna. dna is the blueprint of life because it contains instructions on how to make proteins in the
body. each individuals dna is unique, which means that each individual has a unique set of proteins.
that is why each of us looks and behaves differently. rna is a copy of dna. because dna cant leave
the cells nucleus, and because proteins are constructed outside of the nucleus in the cytoplasm, the
rna is necessary to carry the instructions from dna to the cytoplasm where the protein is made.

1. what are the two types of nucleic acids?

a.________________________ b.________________________

1. what is the role of dna?

__________________________

1. how does the role of rna differ from that of dna?

__________________________
the monomer of nucleic acids is the nucleotide. all nucleic acids are formed from a series of these
nucleotides. nucleotides consist of three parts: a five - carbon sugar, a phosphate group and a
nitrogen base.

1. what is the building block of nucleic acids?__________________________
2. what are the three parts of this monomer?

a.__________________________
b.__________________________
c.__________________________

Explanation:

• For question 33, the text clearly states the two types of nucleic acids.
• For question 34, the role of DNA is described as containing instructions for making proteins.
• For question 35, the difference in roles between RNA and DNA is explained based on their movement and function.
• For question 36, the building block of nucleic acids is given in the text.
• For question 37, the three parts of the monomer (nucleotide) are listed.

Answer:

33.
a. DNA (Deoxyribonucleic Acid)
b. RNA (Ribonucleic Acid)

1. DNA contains instructions on how to make proteins in the body.
2. DNA is the blueprint (stays in the nucleus) and RNA is a copy that carries instructions from DNA to the cytoplasm (where proteins are made).
3. Nucleotide

37.
a. A five - carbon sugar
b. A phosphate group
c. A nitrogen base