Thursday, October 25, 2007
Thurs-Day 2
Bio- we discussed and drew the structure of DNA and noted the characteristics of the molecule that allows DNA to accurately replicate itself.
DNA, the principal component of chromosomes, replicates itself during the S phase of INTERphase. The double helix "unzips" as the weak attractions between complementary base pairs (A-T or C-G) are broken (with the aid of enzymes) so that TWO double helix DNA molecules can be synthesized from one.
See this in our notes, video, and PowerPoint on Blackboard.
Chem 7/8: we derived and explained in terms of:
1. Average KE (KELVIN temperature) of the molecules
2. Number of Collisions PER SECOND, collision rate, between the molecules and the container walls
3. Average Energy/average FORCE of collisions between the molecules and the container walls.
the various gas laws. These laws show the relationships between two of the following variables (P,V, T, and n) with the remaining variables held constant for a given experiment.
Check out the interactive video that we used in class today; it is linked on Blackboard.
We then practiced "test-taking skills" in solving problems for each of the gas laws. On Blackboard, I will post the answers to those handouts; check your answers and HOW you solved the problems.
Chem 9: we derived and explained in terms of:
1. Average KE (KELVIN temperature) of the molecules
2. Number of Collisions PER SECOND, collision rate, between the molecules and the container walls
3. Average Energy/average FORCE of collisions between the molecules and the container walls.
the various gas laws. These laws show the relationships between two of the following variables (P,V, T, and n) with the remaining variables held constant for a given experiment.
Check out the interactive video that we used in class today; it is linked on Blackboard.
DNA, the principal component of chromosomes, replicates itself during the S phase of INTERphase. The double helix "unzips" as the weak attractions between complementary base pairs (A-T or C-G) are broken (with the aid of enzymes) so that TWO double helix DNA molecules can be synthesized from one.
See this in our notes, video, and PowerPoint on Blackboard.
Chem 7/8: we derived and explained in terms of:
1. Average KE (KELVIN temperature) of the molecules
2. Number of Collisions PER SECOND, collision rate, between the molecules and the container walls
3. Average Energy/average FORCE of collisions between the molecules and the container walls.
the various gas laws. These laws show the relationships between two of the following variables (P,V, T, and n) with the remaining variables held constant for a given experiment.
Check out the interactive video that we used in class today; it is linked on Blackboard.
We then practiced "test-taking skills" in solving problems for each of the gas laws. On Blackboard, I will post the answers to those handouts; check your answers and HOW you solved the problems.
Chem 9: we derived and explained in terms of:
1. Average KE (KELVIN temperature) of the molecules
2. Number of Collisions PER SECOND, collision rate, between the molecules and the container walls
3. Average Energy/average FORCE of collisions between the molecules and the container walls.
the various gas laws. These laws show the relationships between two of the following variables (P,V, T, and n) with the remaining variables held constant for a given experiment.
Check out the interactive video that we used in class today; it is linked on Blackboard.
# posted by C @ 2:32 PM 
