Saturday, November 7, 2009
Fri-Day 1
Bio 3/6- we began our unit on Transcription, Translation, and Genetic Mutations with an overview of those processes. We watched an animation (posted on Blackboard) of DNA transcription to mRNA, followed by the translation of the mRNA to a protein. We noted the structures, their functions, and the locations of the processes.
All of the characteristics of an organisms are due to proteins, especially enzymes, which control the synthesis of proteins and ALL other biological molecules. These proteins are specified, coded for, by DNA, a nucleic acid that makes up your chromosomes. DNA cannot directly give an organism its traits because DNA has the consistency of spaghetti/long-thin pasta. However, because DNA has a complementary base pairing structure, and consists of long sequences of up to four different nucleotides/nitrogenous bases, DNA can CODE FOR the building/assembly/synthesis of a particular sequence of amino acids i.e. proteins that can directly cause/influence metabolic reaction and also physically make up an organism!
Understanding this central dogma of molecular biology at the molecular level enables scientists to truly control "nature"/organisms and fundamentally can change (benefit or harm) how humans manipulate their environment.
AP Chem- we discussed bond enthalpies/bond dissociation energies and showed how they can be used to calculate the change in enthalpy/potential energy for a chemical reaction.
All of the characteristics of an organisms are due to proteins, especially enzymes, which control the synthesis of proteins and ALL other biological molecules. These proteins are specified, coded for, by DNA, a nucleic acid that makes up your chromosomes. DNA cannot directly give an organism its traits because DNA has the consistency of spaghetti/long-thin pasta. However, because DNA has a complementary base pairing structure, and consists of long sequences of up to four different nucleotides/nitrogenous bases, DNA can CODE FOR the building/assembly/synthesis of a particular sequence of amino acids i.e. proteins that can directly cause/influence metabolic reaction and also physically make up an organism!
Understanding this central dogma of molecular biology at the molecular level enables scientists to truly control "nature"/organisms and fundamentally can change (benefit or harm) how humans manipulate their environment.
AP Chem- we discussed bond enthalpies/bond dissociation energies and showed how they can be used to calculate the change in enthalpy/potential energy for a chemical reaction.
# posted by C @ 10:56 PM 
