- Deoxyribo nucleic acid
- Stores genetic information
- Ribonucleic acid
- does transfers of genetic information
- Functions like enzymes but is not a protein
made of a phosphate group, a sugar, and a nitrogenous base.
made of nucleotide subunits
RNA Nitrogenous bases
Adenine, cytosine, guanine and uricil
DNA Nitrogenous bases
Thymine, Adenine, Cytosine, Guanine (Hydrogen bonds for these)
Covalent bond between phosphate group and sugar of adjacent nucleotides
What are four major Macromolecules?
Carbohydrates, lipids, Proteins, Nucleic Acid
The hydrogen bonds will break apart, the strands of DNA will make copies of themselves and then bond back together. The three up 5 down strand thing is what makes em' helixy
Strands are oriented this way and then twisted to form a double helix.
RNA (hairpin) Structure
Same ideal as DNA except that the bases are different. RNA is single stranded and will fold up and base pair to itself.
They are sugars. They function as energy storage, structure and cell identity.
- Large variety of structures do to variable:
- Number of Carbons
- Linear vs. ring formations
- location of carbonyl group
- configuration of hydroxyl groups
Covalent bond between sugars. monomers can be identical or different.
Glucose polymer stored in plants. Branched or unbranched
Glucose polymer stored in animals - highly branched
- Cellulose- plant and algae cell walls
- Chitin- fungi cell walls, exoskeleton of bugs and crustaceans
- Peptidoglycan- bacterial cell wall
Key molecules in cell - cell recognition and signalling. This is a sugar that coats the cells - how our body knows if the cell belongs to us or not. Not our sugar... not our cell.