Bio First test

22 terms by souce

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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

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