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Saturday, August 30, 2008

Concept Check 5.1 (:

5.1 CONCEPTS


Straight chain







- Branched chain

CARBON SKELETONS AND FUNCTIONAL GROUPS

-carbon is an essential element of like
-most molecules of cells are carbon based
-carbon can form up to four bonds with other atoms
-Carbon can produce endless varieties of carbon skeletons
-ORGANIC MOLECULES: most carbon based molecules CARBON ATOMS


-INORGANIC MOLECULES are non carbon0based molecules such as water
-organic molecules that are composed of only carbon and hydrogen are known as HYDROCARBON
-hydrocarbons are important to fuels as Methane is one of the most important hydrocarbon in natural gas
-FUNCTIONAL GROUP: A group of atoms within a molecule that interacts in predictable ways with other molecules
-HYDROPHILIC: atoms that attract water molecules

MONOMERS And Polymers
-bio molecules may be composed of hundreds or even millions of atoms
-MONOMERS: Large molecules built from many similar, smaller molecular units
-POLYMERS: cells link monomers together in long chains
- Life's large molecules are classified into four main categories: carbohydrates, lipids, proteins and nucleic acid
BUILDING and BREAKING POLYMERS
- Each time a monomer is added to a chain, a water molecule is released
- dehydration reaction because it involves removing, de, water, hydro
-organisms have to break polymers
-must break down the polymers in food to make their monomers available to cells
- cells break bonds between monomers by adding water to them, reverse of dehydration, hydrolysis reaction
-water is removed to build a polymer, added to break it down.


- polymer chain!













Concept Check 5.1
1. Draw a molecule that has a three-carbon skeleton and a hydroxyl group on the middle carbon. (C3H8O)

H
H O H
H-C-C-C-H
H H H

2.Explain the connection between monomers and polymers.
Monomers are the substances that make up the long chains of Polymers. In a polymer chain, their are many monomers.

3.What molecule is released during construction of a polymer?What is this reaction called? During the construction of a polymer, a water molecule is released called Dehydration. When you build a polymer, a water is released.

4.Draw at least three ways in which five carbon atoms could be joined to make different carbon skeletons.

C
C C
C C
With two covalent bonds between the C and their consecutive Carbon atoms. So, each carbon atom will form 4 covalent bonds, two from each side, generating a pentagon.
H H H H H
HC-C-C-C-C H
H H H H H
There are one covalent bond between consecutive atoms, that are not shown due to BLOGGER.
H H H
C=C-C=C-H
H

On the covalent bonds not shown, they are single bonds.

Thursday, August 28, 2008

so this is me(:

so here's the deal:
a crazy, hyper, COOL
shopaholic person
:D ♥
i am: winnielau.
i blow out fourteen lovely candles on the 21st of the beloved christmas month! <=== DECEMBER 21st that is; for the retards!
ENTERTAINMENT to me are those: random moments i have everywhere and anywhere; bizarre times during school days; WILD NIGHTS out (:, wacky parties around, CRAZY times with "losers"

i can't live without: ♥shopping, which is like OXYGEN for my nerves, as it is constantly needed to breathe and create a soothing heart rate, friends are a must, as it is the buffer to those drama and pressure of school, talking is essential for my lungs, heart and brain to facilitate; and eating is life, transporting fuel and energy to be a winniboo ♥ LOVING

these little jumbled fragments are like a puzzle -combines to solve the mysteries of my heart (the many different systems of cardiovascular and respiratory systems): friends, shopping, food, cameras, cash, beach, plums, bags, shoes, phone, water, and jewellery(: -that is
bags, shoes and clothes are carbon :D, essential for living beings and life forms
shopping and friends are a the common oxygen in air, that numerous organisms inhale
partying and wack nights out are a type of nitrogen, one of the four common elements in a body
or in other words:)
bags, shoes and clothes are love :D
shopping and friends are a definite
partying and wack nights out are a must!

ive been to numerous places! and i mean it
!
ILOVE travelling, and i am planning to visit Antarctica this coming year!
afterwards, i would of been too all the continents of the world!
different from other friends and people, i have MANY MANY MANY favorite places for "different" reasons, such as: NEW YORK, SAN FRANCISCO, L.A., PARIS, LONDON-for shopping, VIETNAM, SOUTH AFRICA, BRAZIL MOSCOW - to experience the different cultures, TOKYO, HONGKONG, SEOUL, TAIPEI, - for the food and different environments, ROME, BRUSSELS, BARCELONA, and European cities for their wonderful historic monuments and scenery!


ibelieve:
attending the wonderful school with multi-talented students, i have not only seen the gradual evolution and growth of my immature days to a high school freshie, but i am also honored to witness the development of aisg, itself. from the six years that i have come to call this everbright and clean city of Guangzhou, a home; i have made numerous friends, experienced many difficulties and barriers, overcome great risks and tasks, still managing to have a blast. as they say, an international student is bound to face many obstacles, of the departure of best friends, leaving of loved ones, but we have a much more exciting lives than the others. being multi cultured and influenced by different ethnic societies and culture, the starting of new friendships allow us to have best friends in at least five different countries, still keeping in touch with the friends who may not be next to us, but is certainly next to us in spirits and hearts. like many other international kiddos, we learn and experience what is bad and good from our infinite buds, avoiding mistakes that are fault, and learning from the positive of others. goingthrough much more in our school years, we all strive for the best, and hope for the good. this is me ;D THIS IS MY BELIEF(:


♥ -andthatsme understood?