Nucleic Acid

Unit 3 Lesson 4

❏ Review the parts of

nucleotides/nucleic acids

NUCLEIC ACIDS

Macromolecule containing hydrogen, oxygen, nitrogen, carbon and phosphorus.

Monomer = nucleotides

Nucleotide is a molecule made-up of three parts:
–A 5-carbon sugar
–A nitrogen base
–A phosphate group

LG #1: Explore & Interact:

NUCLEIC ACID EXAMPLES

■ DNA – DeoxyriboNucleic Acid
chain of nucleotides with the sugar deoxyribose and are double-stranded.

■ RNA – RiboNucleic Acid
chain of nucleotides with the sugar ribose and are single-stranded

■ ATP – Adenine TriPhosphate
single nucleotides that has the nitrogen base adenine and three phosphate groups.

LG #1: Explore & Interact:

FUNCTIONS OF NUCLEIC ACID

• Store instructions to make proteins - aka hereditary information (DNA)

• Transmit the instructions of hereditary information (RNA)

• Energy carriers (ATP)

LG #1: Explore & Interact:

Match

Match the following characteristics of nucleic acids.

• The nucleic acid has a deoxyribose sugar and stores genetic information.

• This nucleic acid has a ribose sugar and sends the genetic information into the cell.

• This nucleic acid has three phosphates and is responsible for releasing energy when the cell needs it.

• The parts of the nucleotide

• Elements in nucleic acids

DNA

RNA

ATP

Phosphate group, sugar, nitrogen base

C, H, O, N, P

• DNA

• RNA

• ATP

• Phosphate group, sugar, nitrogen base

• C, H, O, N, P