Term
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Definition
| Occupies space, what stuff is made of |
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Term
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Definition
Cannot be decomposed by chemicals,
create matter |
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Term
| Dmitri Ivanovich Mendeleyev |
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Definition
Russian chemist 1834-1907
Created Periodic table |
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Term
| 6 Biologically Significant Elements |
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Definition
Hydrogen
Oxygen
CARBON
Nitrogen
Phosphorus
Sulfur |
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Term
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Definition
Have mass, positive charge, found in nucleus of atom,
atom mass # on P.T. = number of protons |
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Term
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Definition
| Have mass, no charge, found in nucleus |
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Term
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Definition
| almost no mass, particles or waves, negative charge, orbit nucleus on electron shells |
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Term
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Definition
1st shell: 2
2nd shell: 8
3rd shell: 18 |
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Term
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Definition
| Atoms like to have 8 electrons in their outermost shell |
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Term
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Definition
Attractions between opposing charged ions.
formed by physical transfer of electrons |
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Term
| Ionic Compounds/Molecules |
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Definition
Salts: NaCl, CaCl2, KNO3
individually exist when dissolved |
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Term
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Definition
Elevate Hydrogen ions
0-6 Acids on Ph scale |
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Term
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Definition
Increase Hydroxide ions concentration
8-14 Bases on Ph scale
7 neutral |
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Term
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Definition
Mixtures of salts that constrain acids and bases
(can control Ph level) |
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Term
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Definition
| Atomic attraction, result from sharing of electrons between 2 or more atoms |
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Term
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Definition
weak electrostatic attractions between atoms and/or molecules
involve pos. H atom and neg. N or O atom |
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Term
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Definition
| the two coiled strands of DNA together |
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Term
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Definition
Composed of: C, H, and O
Ratio: 1C/2H/1O
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Term
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Definition
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Term
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Definition
simple sugars polymerized in complex sugars
(glucose + fructose = sucrose) |
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Term
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Definition
Polymers of di- or mono- saccharides
(starch) |
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Term
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Definition
| Glycerol bonding with fatty acids |
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Term
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Definition
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Term
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Definition
Natural fats, high energy storing
"bad cholesterol" |
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Term
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Definition
structural lipids used in cell membranes
Phosphate group bonded with two fatty acids
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Term
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Definition
Hydrophobic, don't like water
bond with phosphate group to make phospholipids |
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Term
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Definition
| all possible bonding sites for H are full |
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Term
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Definition
| Double bonded carbon to carbon taking up an H spot |
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Term
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Definition
Steroid
Naturally occurring, built in cell membrances
starting point for synthesis of other steroids |
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Term
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Definition
| Human sex hormones, females/males create both |
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Term
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Definition
| Small molecules produced in 1 part of the body and transported elsewhere |
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Term
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Definition
Help create polymers
20 different kinds with same basic structure |
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