DNA: Structure. Happy Tuesday! Bell Work: October 8. Please draw and name the biomolecules below: 2. 3. . Science Fact of the Day: The tongue of a blue whale is bigger than a taxi cab, and can weigh as much as an elephant.
Bell Work: October 8
Please draw and name the biomolecules below:
Long term energy, cell membranes, fatty acids, CHO
amino acids, many different shapes, enzymes, CHON
Today you’re going to learn about…
Deoxyribonucleic acid = DNA
The monomer of DNA is called a nucleotide, which has:1. 5-carbon sugar (deoxyribose)2. phosphate group3. nitrogenous base.This means that the elements in a nucleic acid are: C, H, O, N, and P
Hydrogen bonds are weak (easily broken) bonds
When enough bases are linked together, the DNA ladder will twist into a double helix shape
In a Eukaryotic organism the DNA double helix will coil around histones (proteins) and eventually be packed together into chromosomes.DNA is found in the nucleus in Eukaryotic cells.
Important to Remember: All living things have DNA! Scientists refer to this as a “common genetic code”The sequence of bases matters! The order determines the organism.