Wednesday, September 24, 2008
Wednes-Day 1
AP Chem- we had our Unit 2 exam (up to the DeBroglie equation); naturally, in AP Chemistry, your knowledge of "how" and "why" a phenomenon occurs is very important and your study will require "rehearsing"/writing out/drawing out such explanations. AP Chemistry is both quantitative (calculations) and qualitative (explanations and descriptions) and you will have regular practice at honing both of those types of skills.
Some of you have previewed the rest of the chapter 7 material involving the quantum mechanical model of the atom (electrons in "sublevels" of principal energy levels), electron configurations, and then Periodic properties. If you have not done so, read through the rest of chapter 7 to see what you can recall from prior experience. We will try to cover all of that information by Friday so that you can practice it over the weekend (the remaining HW questions) and be tested on it early next week (in order to close out unit 2).
Bio 6/7 - the HW (due Thursday) will be graded based on the accuracy, thoroughness, and neatness of your answers to Objectives 1 through 14 only. Other than the resources on Blackboard, you may want to use your textbook, which has biochemistry information
in Chapter 6.
We will finish the other objectives in the notes on Thursday and Friday.
we did an activity that showed the process of dehydration synthesis; we compared the formulas of the reactants and products and noticed that the main product formula was the sum of the reactant formulas minus two H's and one O (as in H2O).
We then saw an overview of a specific category of protein molecules called enzymes.
We discussed how enzymes SPEED UP chemical reactions without being used up in or destroyed by the reaction. We saw how enzymes temporarily bind substrate molecules, making their bonds easier to break and how enzymes position the substrates in such a way that the proper new bonds are made to form the product. The enzyme then releases the product molecules and is ready to catalyze another reaction with the same type of substrate(s)/reactant molecule(s).
Tomorrow, we will review nucleic acids and complete our discussion and notes on enzymes.
Bio 8- the HW (due Thursday) will be graded based on the accuracy, thoroughness, and neatness of your answers to Objectives 1 through 14 only. Other than the resources on Blackboard, you may want to use your textbook, which has biochemistry information
in Chapter 6.
we discussed a fourth major type of organic macromolecule: nucleic acids.
Nucleic acids are made up of a (polymer) chain of nucleotides. DNA is double-stranded and made up of two chains of nucleotides. RNA is a single-stranded chain of nucleotides; the sugar part of the each nucleotide in RNA is the Ribose sugar whereas the sugar part of each nucleotide in DNA is Deoxyribose. We then saw an overview of a specific category of protein molecules called enzymes.
We discussed how enzymes SPEED UP chemical reactions without being used up in or destroyed by the reaction. We saw how enzymes temporarily bind substrate molecules, making their bonds easier to break and how enzymes position the substrates in such a way that the proper new bonds are made to form the product. The enzyme then releases the product molecules and is ready to catalyze another reaction with the same type of substrate(s)/reactant molecule(s).
Some of you have previewed the rest of the chapter 7 material involving the quantum mechanical model of the atom (electrons in "sublevels" of principal energy levels), electron configurations, and then Periodic properties. If you have not done so, read through the rest of chapter 7 to see what you can recall from prior experience. We will try to cover all of that information by Friday so that you can practice it over the weekend (the remaining HW questions) and be tested on it early next week (in order to close out unit 2).
Bio 6/7 - the HW (due Thursday) will be graded based on the accuracy, thoroughness, and neatness of your answers to Objectives 1 through 14 only. Other than the resources on Blackboard, you may want to use your textbook, which has biochemistry information
in Chapter 6.
We will finish the other objectives in the notes on Thursday and Friday.
we did an activity that showed the process of dehydration synthesis; we compared the formulas of the reactants and products and noticed that the main product formula was the sum of the reactant formulas minus two H's and one O (as in H2O).
We then saw an overview of a specific category of protein molecules called enzymes.
We discussed how enzymes SPEED UP chemical reactions without being used up in or destroyed by the reaction. We saw how enzymes temporarily bind substrate molecules, making their bonds easier to break and how enzymes position the substrates in such a way that the proper new bonds are made to form the product. The enzyme then releases the product molecules and is ready to catalyze another reaction with the same type of substrate(s)/reactant molecule(s).
Tomorrow, we will review nucleic acids and complete our discussion and notes on enzymes.
Bio 8- the HW (due Thursday) will be graded based on the accuracy, thoroughness, and neatness of your answers to Objectives 1 through 14 only. Other than the resources on Blackboard, you may want to use your textbook, which has biochemistry information
in Chapter 6.
we discussed a fourth major type of organic macromolecule: nucleic acids.
Nucleic acids are made up of a (polymer) chain of nucleotides. DNA is double-stranded and made up of two chains of nucleotides. RNA is a single-stranded chain of nucleotides; the sugar part of the each nucleotide in RNA is the Ribose sugar whereas the sugar part of each nucleotide in DNA is Deoxyribose. We then saw an overview of a specific category of protein molecules called enzymes.
We discussed how enzymes SPEED UP chemical reactions without being used up in or destroyed by the reaction. We saw how enzymes temporarily bind substrate molecules, making their bonds easier to break and how enzymes position the substrates in such a way that the proper new bonds are made to form the product. The enzyme then releases the product molecules and is ready to catalyze another reaction with the same type of substrate(s)/reactant molecule(s).
# posted by C @ 10:29 AM 
