january 27, 2009
Exam on the 5th week on Lab day
chapter 2
not focused on bonding
CHEMICAL BONDS
Ionic Bonds= are chemical bonds created by electrical attractions between anions and cations
has +- bonds +cations – anions
Atoms complete their outer electrons by Gaining, Losing (ionic bond) or Sharing (covalent bond) of electrons .
Covalent bonding (sharing ) =
Hydrogen Bonds
Chemical and Energy reaction
Chemical Reaction occur whenever bonds are formed or broken between molecules.
Law of conservation of energy, neither create nor destroy atoms-- just convert one to another.
Energy Reaction
Inorganic compound
two most important Inorganic substance in the body.
1.carbon dioxide , a by product of cell metabolism.
2.oxygen, an atmospheric gas required in important metabolic reaction.
3.water, which accounts for most of our body weights.
4.inorganic acids, bases and salts
organic compound
92 naturally occuring are in the body so they circulate
4 element there will not be survival, oxygen, nitrogen, ...*
subparticles of atom
protons and neutrons are inside
electrons are positively or negatively charged? *
what are protons if they become unstable.
electron shell.are made to hold specific amount .
electrons must equal to the amount of protons.
1 nuetrons = 1 nucleus
free radicalizaton*
isotopes
radio active isotopes examples. xray penetrate in your body and destroy tissue.
effects of radiation ..absestosis..two types to treat cancers; radiotherapy and chemotherapy.
why is there ion or why is there charges + - ? it is for compound sodium and chloride, sodium stands specific elements and put them together but has to go ionization. sudionchloride= table salt. ionization is all about what. +- what are they used for?
water is considered covalent .
what is oxidation or reduction? is a free radicalization ex. metal piece leave it 3 mos. it will rust. *
free radicalization they can produce in skin too color of skin.
most of bond in our body is covalent like water.
cell is composed of what?
each cell has a plasma membrane
h20 bonds work differently
ionic bonds
what is an electrolyte? acids, basis and salt.
breakdown of eletrolyte? canions and anions.
PH SCALE
Kenitec energy aka mechanical energy
catalysts speed up metabolism.
enzymes are considered to be proteins
glocuse*
lactose intolerance cant breakdown lactose sugar. because lactose is enzymes. accumulation of lactose produce pain.
each enzyme works in the body.
enzyme is reusable
synthesis reaction and anabolism
catabolism
exchange reaction em. very important in the exchange of carbon dioxide and oxygen.
reversible reactions
oxidatona nd reduction reactions
inorganic and organic
40 percent is composed of in organic compounds.
water, salts avids bases are inorganic ex. sodium chloride. hydro chloric acid.
Inorganic Acids basis and salts
what is the PH scale? 0-14 ..what do this number mean? if i want to be nuetral it is 7. 35
7.30is acidic***
alkaline is same as base.
lemon juice are acidic
milk is basic
black heart* thats to normalize and bring homeostasis
2 buffer
biocarbonate is considered basic is a weak base.
kenoalkiloses
sudiom chloride
concentration
water is the most important inorganic compound *
heat capacitry
concenpt of PH ***
Buffer system *** expected to know the numbers
boicarbonated *** bicarbonate
C6H12O6 *** expected to know during test
structural formula **
where do u derive fructuse ..is considered a
Carbohydrates
what does ATP formation ?*** adinosyn tri-phospates , adinosyntrite is sugar.
carb,lipids -break it down to ATP ***
carb is only 2-3 % of body weight
lipids is 20
sugar building blocks DNA and RNA deoxyribose and ribose nucliac acid
back bone of a molecule is sugar is DNA
Monosacharides
-simple sugar
Disaccharides
combine e mon
what is dehydration synthesis is releasis water
Polysaccharides
animal -glyncogen
plant cellulose
Lipids and Fats
formed from
what is phosolipids? attached ***where do u find ? membrane of cell*** heard the term phosolipids bionaire**
18-25% store more fat than sugar in the body.
adapose is an insulator more in fat
what is fat?
stores in fat adipose tissue
what is hydrophobic stuff that dont atract water. hydrophelic very suloble with water. more in chapt 3-4
tri glycerides
we ate food fat stores in adipose tissue
lyposaction – take out the fat and some cause dehydrated ..the type of fat is adipose..cell feeds organic.***
stop in eicosaniods at 10:33
