Friday, January 18, 2008
Fri-Day 1
Bio- Outline HW: Section 37.1 is due Wednesday and Section 37.3 is due on Friday. Our NEXT UNIT TEST is on TUESDAY, JANUARY 29th (not next Friday, good thing!).
we finished the circulatory system by discussing the "fluid" that is pumped through the vessels by the heart; that fluid is the blood, which is composed of red blood cells (erythrocytes), white blood cells, platelets, and plasma. Blood is the connective tissue that links all parts of the body.
The red blood cells, which contain no nucleus, transport oxygen to body cells from the lungs and transport carbon dioxide from body cells to be excreted by the lungs.
There are several different specific white blood cells, but they all are involved in your immune system, helping your body to maintain homeostasis by preventing harmful substances, cells, or organisms from entering or affecting your body.
The platelets help to form blood clots to prevent bleeding from broken blood vessels; you have a CLOSED circulatory system so all of the blood is ENCLOSED within vessels that must remain free from holes or punctures to contain the blood; platelets aid in plugging up any breaches in these vessels.
The plasma contains dissolved and undissolved (mixed) enzymes, vitamins, minerals, sugars, fatty acids, amino acids, hormones, nucleotides that are transported to the various cells of the body.
We then began our focus on the system that works in cooperation with the circulatory system:
the RESPIRATORY system.
We recalled the two types of CELLULAR respiration: aerobic and anaerobic.
The oxygen needed by cells (mitochondria) for aerobic respiration is obtained by the functioning of the respiratory system and transported to the cells via the circulatory system.
We labeled the parts and functions of the various components of the respiratory system and we will discuss how the lungs expand and contract via the diaphragm muscle.
We began our "Making Connections" lab by taking our resting pulses (which is a measure of your heart muscle/ventricle contraction rate) and averaging those pulses over three trials.
I have posted our results via a Google Spreadsheet linked here.
I'll also post the histogram/chart of our data and all of the worksheets and answers (do your work first, of course) on Blackboard this weekend (probably by Saturday night).
Chem 7- Here is a link to some great compound-naming tutorials complete with practice question sets and answers.
Apologies for that monster formula-naming handout; that was supposed to be printed with an answer key but, to my displeasure, I was alerted by Chem 9th that the 345 formulas were just REPEATED without answers. Uggh. Gggaaahgd!
So, to remedy the situation, IGNORE that handout, please. I WILL post legitimate inorganic compound-naming worksheets WITH answer keys on Blackboard. Some of the problems on the worksheets are for later units (acids, hydrated salts) so I encoded those problems in RED FONT; ignore those particular problems.
We reviewed naming salts of representative metals, transition, and polyatomic ions. We also practiced naming molecules via the PREFIX system (mono, di, tri).
Remember, if you get stuck, never forget how you name the MOLECULES carbon dioxide and carbon monoxide; also remember how you name table SALT: sodium chloride. Those examples as models/templates, prefixes for molecules, NO prefixes for salts, should help you name many molecules and salts.
You should also know that you CANNOT tell the formula of a salt from its name! That's right! For example, aluminum oxide is NOT AlO. It is Al2O3 due to the charges of the aluminum and oxide ions; in the lattice of ions, there are TWO Al (3+) cations for every THREE O (2-) ions so that the charges balance.
You CAN tell the formula of a molecule from its prefix system name, though.
Our QUARTERLY exam is next Friday. There is a HUGE review question packet on Blackboard under the "Review Materials" link. Download that file and do the questions early and often so that you can ask me about anything that you are not totally sure about.
Chem 8/9- Here is a link to some great compound-naming tutorials complete with practice question sets and answers.
Thanks for the heads-up about the formula-naming worksheet today. Don't bother with that handout, please. I WILL post legitimate inorganic compound-naming worksheets WITH answer keys on Blackboard tonight or tomorrow. Some of the problems on the worksheets are for later units (acids, hydrated salts) so I encoded those problems in RED FONT; ignore those particular problems.
We reviewed naming salts of representative metals, transition, and polyatomic ions. We also practiced naming molecules via the PREFIX system (mono, di, tri).
Remember, if you get stuck, never forget how you name the MOLECULES carbon dioxide and carbon monoxide; also remember how you name table SALT: sodium chloride. Those examples as models/templates, prefixes for molecules, NO prefixes for salts, should help you name many molecules and salts.
You should also know that you CANNOT tell the formula of a salt from its name! That's right! For example, aluminum oxide is NOT AlO. It is Al2O3 due to the charges of the aluminum and oxide ions; in the lattice of ions, there are TWO Al (3+) cations for every THREE O (2-) ions so that the charges balance.
You CAN tell the formula of a molecule from its prefix system name, though.
We almost put the molecular model lab to bed today but we will quickly finish that on Wednesday.
Our QUARTERLY exam is next Friday. There is a HUGE review question packet on Blackboard under the "Review Materials" link. Download that file and do the questions early and often so that you can ask me about anything that you are not totally sure about.
we finished the circulatory system by discussing the "fluid" that is pumped through the vessels by the heart; that fluid is the blood, which is composed of red blood cells (erythrocytes), white blood cells, platelets, and plasma. Blood is the connective tissue that links all parts of the body.
The red blood cells, which contain no nucleus, transport oxygen to body cells from the lungs and transport carbon dioxide from body cells to be excreted by the lungs.
There are several different specific white blood cells, but they all are involved in your immune system, helping your body to maintain homeostasis by preventing harmful substances, cells, or organisms from entering or affecting your body.
The platelets help to form blood clots to prevent bleeding from broken blood vessels; you have a CLOSED circulatory system so all of the blood is ENCLOSED within vessels that must remain free from holes or punctures to contain the blood; platelets aid in plugging up any breaches in these vessels.
The plasma contains dissolved and undissolved (mixed) enzymes, vitamins, minerals, sugars, fatty acids, amino acids, hormones, nucleotides that are transported to the various cells of the body.
We then began our focus on the system that works in cooperation with the circulatory system:
the RESPIRATORY system.
We recalled the two types of CELLULAR respiration: aerobic and anaerobic.
The oxygen needed by cells (mitochondria) for aerobic respiration is obtained by the functioning of the respiratory system and transported to the cells via the circulatory system.
We labeled the parts and functions of the various components of the respiratory system and we will discuss how the lungs expand and contract via the diaphragm muscle.
We began our "Making Connections" lab by taking our resting pulses (which is a measure of your heart muscle/ventricle contraction rate) and averaging those pulses over three trials.
I have posted our results via a Google Spreadsheet linked here.
I'll also post the histogram/chart of our data and all of the worksheets and answers (do your work first, of course) on Blackboard this weekend (probably by Saturday night).
Chem 7- Here is a link to some great compound-naming tutorials complete with practice question sets and answers.
Apologies for that monster formula-naming handout; that was supposed to be printed with an answer key but, to my displeasure, I was alerted by Chem 9th that the 345 formulas were just REPEATED without answers. Uggh. Gggaaahgd!
So, to remedy the situation, IGNORE that handout, please. I WILL post legitimate inorganic compound-naming worksheets WITH answer keys on Blackboard. Some of the problems on the worksheets are for later units (acids, hydrated salts) so I encoded those problems in RED FONT; ignore those particular problems.
We reviewed naming salts of representative metals, transition, and polyatomic ions. We also practiced naming molecules via the PREFIX system (mono, di, tri).
Remember, if you get stuck, never forget how you name the MOLECULES carbon dioxide and carbon monoxide; also remember how you name table SALT: sodium chloride. Those examples as models/templates, prefixes for molecules, NO prefixes for salts, should help you name many molecules and salts.
You should also know that you CANNOT tell the formula of a salt from its name! That's right! For example, aluminum oxide is NOT AlO. It is Al2O3 due to the charges of the aluminum and oxide ions; in the lattice of ions, there are TWO Al (3+) cations for every THREE O (2-) ions so that the charges balance.
You CAN tell the formula of a molecule from its prefix system name, though.
Our QUARTERLY exam is next Friday. There is a HUGE review question packet on Blackboard under the "Review Materials" link. Download that file and do the questions early and often so that you can ask me about anything that you are not totally sure about.
Chem 8/9- Here is a link to some great compound-naming tutorials complete with practice question sets and answers.
Thanks for the heads-up about the formula-naming worksheet today. Don't bother with that handout, please. I WILL post legitimate inorganic compound-naming worksheets WITH answer keys on Blackboard tonight or tomorrow. Some of the problems on the worksheets are for later units (acids, hydrated salts) so I encoded those problems in RED FONT; ignore those particular problems.
We reviewed naming salts of representative metals, transition, and polyatomic ions. We also practiced naming molecules via the PREFIX system (mono, di, tri).
Remember, if you get stuck, never forget how you name the MOLECULES carbon dioxide and carbon monoxide; also remember how you name table SALT: sodium chloride. Those examples as models/templates, prefixes for molecules, NO prefixes for salts, should help you name many molecules and salts.
You should also know that you CANNOT tell the formula of a salt from its name! That's right! For example, aluminum oxide is NOT AlO. It is Al2O3 due to the charges of the aluminum and oxide ions; in the lattice of ions, there are TWO Al (3+) cations for every THREE O (2-) ions so that the charges balance.
You CAN tell the formula of a molecule from its prefix system name, though.
We almost put the molecular model lab to bed today but we will quickly finish that on Wednesday.
Our QUARTERLY exam is next Friday. There is a HUGE review question packet on Blackboard under the "Review Materials" link. Download that file and do the questions early and often so that you can ask me about anything that you are not totally sure about.
# posted by C @ 2:25 PM 
