Tuesday, February 5, 2008
Tues-Day 2
Bio- we reviewed the A,B,AB, and O blood groups according to antigens present on the surface of the red blood cells; we also reviewed the Rh blood antigen. We explained in detail why only the ANTIGENS on the DONATED blood cells need to be considered when determining a suitable donor for a given patient. The patient has the main source of antibodies, if any, which can be made in great numbers, whereas the donated blood cannot make more antibodies and there are relatively few antibodies in donated blood anyway; so, for simplicity and to avoid confusion, we will ASSUME that DONATED blood has NO antibodies present (the antibodies CAN be filtered out of the plasma).
We then discussed vaccines, what they are made of, what immune reaction they cause in the body, and how they help to cause long-term immunity against a specific pathogen for each specific vaccine.
Art by Michael from 7th:
Chem 7/8- we continued our arduous work with esters, carboxylic acids, and alcohols; we also reviewed the previous types of organic compounds studied, focusing on their CONDENSED structural formulas.
We then looked at organic bases, amines. AmiNes are nitrogen containing compounds that have either one, two, or three alkyl groups bonded to the N atom.
We will only have to name PRIMARY amines. For example, CH3CH2NH2 is called ethanamine.
We then looked at AMIDES, which are formed from the reaction (dehydration synthesis) of a carboxylic acid with an amine to form an amide and water.
We then made a couple of different esters via an acid catalyzed reaction of an alcohol with an organic acid. We noted the fragrance of each ester formed; esters are known for their often fruity fragrances.
Chem 9- we continued our arduous work with esters, carboxylic acids, and alcohols; we also reviewed the previous types of organic compounds studied, focusing on their CONDENSED structural formulas.
We continued to distinguish and name various types of organic compounds based on their respective functional groups. We looked at aldehydes (CHO mama is an aldehyde!), and ketones. ALdehydes end in "al", and ketONEs end in "one".
We then discussed vaccines, what they are made of, what immune reaction they cause in the body, and how they help to cause long-term immunity against a specific pathogen for each specific vaccine.
Art by Michael from 7th:
Chem 7/8- we continued our arduous work with esters, carboxylic acids, and alcohols; we also reviewed the previous types of organic compounds studied, focusing on their CONDENSED structural formulas.
We then looked at organic bases, amines. AmiNes are nitrogen containing compounds that have either one, two, or three alkyl groups bonded to the N atom.
We will only have to name PRIMARY amines. For example, CH3CH2NH2 is called ethanamine.
We then looked at AMIDES, which are formed from the reaction (dehydration synthesis) of a carboxylic acid with an amine to form an amide and water.
We then made a couple of different esters via an acid catalyzed reaction of an alcohol with an organic acid. We noted the fragrance of each ester formed; esters are known for their often fruity fragrances.
Chem 9- we continued our arduous work with esters, carboxylic acids, and alcohols; we also reviewed the previous types of organic compounds studied, focusing on their CONDENSED structural formulas.
We continued to distinguish and name various types of organic compounds based on their respective functional groups. We looked at aldehydes (CHO mama is an aldehyde!), and ketones. ALdehydes end in "al", and ketONEs end in "one".
# posted by C @ 3:28 PM 
