Friday, October 12, 2007
Fri-Day 1
Bio- we analyzed the cell membrane by looking at its composition (phospho-lipid bi-layer with embedded transport, receptor, recognition, and adhesion proteins that comprise a "fluid mosaic"), structure, and main functions (regulation and transport). We then focused on the nucleus (only found in eukaryotic cells), its structure, and function. We briefly discussed all other organelles, which we will revisit on Monday: mitochondria, rough ER, smooth ER, Golgi Bodies, ribosomes, microfilaments/tubules, centrioles, vacuoles, chloroplasts (only in plants and green algae), and lysosomes.
We reviewed some of our Biochemistry exam and I showed you how to do test corrections so that you would LEARN from your mistakes in such a way that you would understand the material that you needed to know before the exam. Corrections can be tedious and painstaking; they are supposed to be. Its part of learning something that leaves a long-term impression on you.
Your corrections must THOROUGHLY and CLEARLY EXPLAIN (how and why) each question and its correct answer. You should include drawings, diagrams, and/or illustrations in most of your corrections. Then, you should realize that, as you take your next test, these exact requirements your for corrections can earn you a lot more points as you apply them directly on your next exam; this way, you will be forced to reason your answers and identify the key terms in each question so that you do not choose a true BUT irrelevant answer.
In case you need extra help on Monday morning, I will allow one more day for the Biochem corrections hw; I will collect that hw on Tuesday.
Your password protected grades are now on Blackboard. I do not have the grade for the labs posted yet, though.
Parents, check the grades frequently; thank you.
Chem 7- we did several examples of writing endothermic and exothermic equations in both formats (energy term in the equation and energy term with the appropriate sign after the semicolon). We also balanced the equations and drew Dalton models of the molecules to SEE that the equations were balanced. Don't forget that for the next test!
We then drew and explained what happens, in terms of potential energy/enthalpy, throughout an exothermic or an endothermic reaction. Knowing how to properly label these two different diagrams is a crucial skill in chem. You MUST know the PE of the reactants, the PE of the products, the PE of the "activatED complex", the "heat of reaction" or "delta H", the Activation Energy (Eact), and, as you will see, the effect on PE of adding a catalyst.
We will also do some quantitative calculations with these diagrams.
After that, we will learn and reason through the FIVE factors that can affect or determine the rate of a chemical reaction.I did not have time to collect the labs that were due so I will do so at the beginning of class on Monday.
Your password protected grades are now on Blackboard. I do not have the grade for the labs posted yet, though.
Chem 8/9 -we did several examples of writing endothermic and exothermic equations in both formats (energy term in the equation and energy term with the appropriate sign after the semicolon). We also balanced the equations and drew Dalton models of the molecules to SEE that the equations were balanced. Don't forget that for the next test!
We then drew and explained what happens, in terms of potential energy/enthalpy, throughout an exothermic or an endothermic reaction. Knowing how to properly label these two different diagrams is a crucial skill in chem. You MUST know the PE of the reactants, the PE of the products, the PE of the "activatED complex", the "heat of reaction" or "delta H", the Activation Energy (Eact), and, as you will see, the effect on PE of adding a catalyst.
We will also do some quantitative calculations with these diagrams.
After that, we will learn and reason through the FIVE factors that can affect or determine the rate of a chemical reaction.
We then did a lab in which we identified an exothermic CHEMICAL change/reaction and an endothermic chemical change/reaction. I'll give you the lab sheet for that on Monday or Tuesday. I did not have time to collect the labs that were due today so I will do so at the beginning of class on Monday.
Your password protected grades are now on Blackboard. I do not have the grade for the labs posted yet, though.
We reviewed some of our Biochemistry exam and I showed you how to do test corrections so that you would LEARN from your mistakes in such a way that you would understand the material that you needed to know before the exam. Corrections can be tedious and painstaking; they are supposed to be. Its part of learning something that leaves a long-term impression on you.
Your corrections must THOROUGHLY and CLEARLY EXPLAIN (how and why) each question and its correct answer. You should include drawings, diagrams, and/or illustrations in most of your corrections. Then, you should realize that, as you take your next test, these exact requirements your for corrections can earn you a lot more points as you apply them directly on your next exam; this way, you will be forced to reason your answers and identify the key terms in each question so that you do not choose a true BUT irrelevant answer.
In case you need extra help on Monday morning, I will allow one more day for the Biochem corrections hw; I will collect that hw on Tuesday.
Your password protected grades are now on Blackboard. I do not have the grade for the labs posted yet, though.
Parents, check the grades frequently; thank you.
Chem 7- we did several examples of writing endothermic and exothermic equations in both formats (energy term in the equation and energy term with the appropriate sign after the semicolon). We also balanced the equations and drew Dalton models of the molecules to SEE that the equations were balanced. Don't forget that for the next test!
We then drew and explained what happens, in terms of potential energy/enthalpy, throughout an exothermic or an endothermic reaction. Knowing how to properly label these two different diagrams is a crucial skill in chem. You MUST know the PE of the reactants, the PE of the products, the PE of the "activatED complex", the "heat of reaction" or "delta H", the Activation Energy (Eact), and, as you will see, the effect on PE of adding a catalyst.
We will also do some quantitative calculations with these diagrams.
After that, we will learn and reason through the FIVE factors that can affect or determine the rate of a chemical reaction.I did not have time to collect the labs that were due so I will do so at the beginning of class on Monday.
Your password protected grades are now on Blackboard. I do not have the grade for the labs posted yet, though.
Chem 8/9 -we did several examples of writing endothermic and exothermic equations in both formats (energy term in the equation and energy term with the appropriate sign after the semicolon). We also balanced the equations and drew Dalton models of the molecules to SEE that the equations were balanced. Don't forget that for the next test!
We then drew and explained what happens, in terms of potential energy/enthalpy, throughout an exothermic or an endothermic reaction. Knowing how to properly label these two different diagrams is a crucial skill in chem. You MUST know the PE of the reactants, the PE of the products, the PE of the "activatED complex", the "heat of reaction" or "delta H", the Activation Energy (Eact), and, as you will see, the effect on PE of adding a catalyst.
We will also do some quantitative calculations with these diagrams.
After that, we will learn and reason through the FIVE factors that can affect or determine the rate of a chemical reaction.
We then did a lab in which we identified an exothermic CHEMICAL change/reaction and an endothermic chemical change/reaction. I'll give you the lab sheet for that on Monday or Tuesday. I did not have time to collect the labs that were due today so I will do so at the beginning of class on Monday.
Your password protected grades are now on Blackboard. I do not have the grade for the labs posted yet, though.
# posted by C @ 10:01 PM 
