Basics of Chemistry
Water Properties
Bonds & Chemical Reactions
Macromolecules
pH
100
Anything that has mass and takes up space
What is matter?
100
The type of substance releases H+ ions in solution.
What is an acid?
100
The bond that forms when electrons are SHARED.
Covalent bond.
100
Macromolecules are organic compounds because they all contain __________________.
What is carbon?
100
This type of substance realeases H+ ions when in solution.
What is an acid?
200
A pure substance made of ONE KIND OF ATOM that cannot be broken down chemically is known as
An element
200
This property of water allows the body cool itself quickly and efficiently.
What is the high heat of vaporization?
200
The bond that forms when an atom GAINS or LOSES electrons to another atom.
Ionic bond
200
AMINO ACIDS are joined by this to form protein
Peptide bonds
200
This substance releases OH- ions when in solution.
What is a base?
300
A mixture within the body
What is blood?
300
Water is sometimes referred to as the universal solvent. This structural characteristic causes ionic compounds to disassociate in water.
What is polarity?
300
In a chemical reaction, the STARTING/ORIGINAL materials are called the _____________.
What are the reactants?
300
This polysaccharide is indigestible to humans.
What is cellulose?
300
A substance with a pH of 2 would be considered this.
What is a strong acid?
400
A chemical reaction in which bonds are formed
What is a synthesis reaction?
400
pH scale measures this.
What is the relative concentration of H+ ions?
400
A weak chemical bond between a slightly (+) part of a hydrogen atom and a slightly (-) charged part of another molecule.
A Hydrogen bond
400
This macromolecule has the monomer of a glycerol + 3 fatty acids chains.
What is a lipid, specifically a triglyceride?
400
th pH of blood
What is 7.4?
500
This subatomic particle determines the chemical behavior of an atom.
What is an electron?
500
the protective role of water within the body
What is cushioning?
500
In a chemical reaction, energy is _____________ or ____________ as chemical bonds break and new bonds form.
Energy is ABSORBED or RELEASED
500
DNA and RNA, which store heriditary info, are examples of this macromolecule.
Nucleic acids
500
pH balance within the body is maintained by these organs and these substances.
What are the kidneys, lungs and buffers?
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