CHMB62H3 Chapter Notes - Chapter 1: Lipid Bilayer, Hydrophile, Plant Cell
Document Summary
Biological molecules can be divided into 4 classes (1) proteins (2) nucleic. Constructed from 4 deoxyribinucleotides (1)adenine (a) (2) Cytosine (c) (3) guanine (g) (4) thymine (t) Baseinteract with one another a and t and c and g: rna. The base tymine (t) is replaces with the base uridini (u) and contains an addition hydroxyl (-oh) group: lipids (store of fuel) Part hydrophilic (likes water) and part hydrophobic (doesn"t like water) Dual nature allow it to form barriers or membranes: carbohydrates (fuels and informational molecules) Stored in animals as glycogen and in plants as starch. Dentral dogma: information flows forn dna to rna and then to proteins, dna can be replicated. Dna contributes to heritable information (the genome) packed into discrete units called genes. When dna is copyed the newly formed daughter cell has identical genomes. The process of copy is called replication performed by a a group of enzymes called the dna polymerase.
