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22 terms

Bio First test

STUDY
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Describe the parts of a atom
Nucleus, Protons, Neutrons, Electrons
Which part of the atom is the key to chemical bonding
Electrons
Describe the ionic bond
nonmetals + metal. add/lose electrons
Describe the covalent bond
Sharing the electrons
Describe hydrogen bond
A weak bond between two molecules resulting from an electrostatic attraction between a proton in one molecule and an electronegative
Ph scale
Scale to see how much H ions are in solution. 0-14
Acid Solution
Any water solution that has more hydrogen ions (H+) than hydroxide ions (OH[[minus]]); any water solution with a pH less than 7. Compare basic solution, neutral solution.
Alkaline Solution
has a ph higher than 7
Organic Cmpounds
compound that contains carbon
4 major organic compounds in the human body
Lipids, Protein, Nucleic acid, Carbs
Carbs
give you short term energy
Monosaccharides
Glucose, Fructose, Galactose
Disaccharides
sucrose, lactose, maltose
Polysaccharides
Starch, Glycogen, Cellulose
Lipids
Long lasting energy source
Proteins
Fight off sickness, replicate or repair cells
Protein Structure
Protein are a organic compound and are made of amino acids, which is assembled by informations in genes
2 info molecules
RNA and DNA
Nucleic Units
Nucleotides
4 Nucleotides in DNA
A,C,G,T
A,C,G,T
adenine (A) - a purine
cytosine(C) - a pyrimidine
guanine (G) - a purine
thymine (T) - a pyrimidine
ATP Importance
It transports energy