Biochemistry Flashcards

7451808767	Element	Substance that CAN'T be broken down by chemical reactions (atom)	0
7451822142	Compound	2 or more different elements combined in a fixed ratio	1
7451855655	Structure of atoms	Protons Electrons Neutrons	2
7451859048	Atomic number	How many protons	3
7451861431	Atomic mass	Total number of protons and neutrons in nucleus of atom	4
7451879252	Covalent Polar Bond	Electrons of the bonds are not shared equally	5
7451885617	Covalent Non-Polar Bond	Share electron equally Two atoms have the same electronegativity	6
7451893418	Ionic Bond	Binding of opposite charged ions together	7
7451900746	Hydrogen Bond	Carries a partial charge and an electronegative atom	8
7451929698	Van Der Waals Force	Positive and negative region of molecules	9
7451941074	Cohesion	Hydrogen bonds hold water molecules together	10
7451999884	Adhesion	Attraction between different substances	11
7452002770	Surface Tension	How hard it is to break the surface of a liquid	12
7452029045	Moderating Temps	Water has a high heat capacity. Large bodies of water can absorb large amounts of heat with only small changes in temp.	13
7452037535	Versatile Solvent	Water polarity allows it to dissolve ionic compounds and other molecules	14
7452045927	Carbon	"Backbone of life" Gives it shape	15
7452110900	Dehydration Synthesis	2 monomers bond together through the loss of a water molecule	16
7452117035	Carbohydrates	Serve as fuel & building material Includes sugars	17
7452121307	Lipids	**Hydrophobic DON'T form polymers Nonpolar Bond Consists of hydrocarbons	18
7452129391	Proteins	Speed up chemical reactions- enzymes Protect against disease, support, movement, storage of amino acids	19
7472246623	Why do most polar covalent bonds involve nitrogen or oxygen?	Oxygen has a partially negative charge	20
7472256442	How/ Why do ions form? How do ionic bonds form?	Ionic bonds form when one atom takes all of the electrons To fill a valence shell	21