1. Nucleic Acids 1 1

2. Nucleic acids Store and transmit genetic information
Made of C, H, O, N, and Phosphorus
Two types:
a. Deoxyribonucleic acid (DNA-double helix)
b. Ribonucleic acid (RNA-single strand)
Nucleic acids are composed of long chains of nucleotides linked by dehydration synthesis. 2 2

3. Nucleic Acids C,H,O,N,P *Monomer: nucleotide
*Function: They make up the genes which provide the basic blueprint of life. They direct your growth and development by dictating protein structure.
*Examples: DNA and RNA
**Nucleic acids are the largest biological molecules in the body. 3

4. Nucleic acids Nucleotides have three parts: phosphate group
pentose sugar (5-carbon)
nitrogenous (nitrogen-containing) bases:
adenine (A)
thymine (T) DNA only
uracil (U) RNA only
cytosine (C)
guanine (G) 4 4

5. Nucleotide 5 5

6. DNA makes proteins – how one organic molecule makes another
The genetic material that organisms inherit from their parents consists of DNA.
Within the DNA are genes.
Genes determine the specific 3-D structures of proteins, and therefore the functions of the proteins.
**Through the actions of proteins, DNA controls the life of the cell and the organism.** 6

7. How many nucleotides? 7

8. DNA vs RNA
deoxyribose
ribose
Double strand single strand 8

9. DNA vs RNA Adenine pairs with thymine Adenine pairs with uracil
Nucleus only nucleus and cytoplasm 9

10. DNA - double helix P O 1 2 3 4 5 P O 1 2 3 4 5 G C T A 10 10

11. 11 11