Shared Flashcard Set

Details

Bio Exam 1
Studying for first quarter of Biology
27
Biology
Undergraduate 1
12/16/2009

Additional Biology Flashcards

 


 

Cards

Term
Polar
Definition
two poles, different charges
Term
Covalent bonds
Definition
can be single or double bonds
Term
Polar Covalent
Definition
Two atoms are sharing electrons, but one of the atoms is pulling the electrons harder, depending on the electronegativities
Term
Hydrogen bonds
Definition
Keep DNA held together
Term
Non-covalent bonds
Definition
have weaker attractions, don't share of transfer electrons, and are made up of Hydrogen Bonds, hydrophobic/hydrophilic attractions, Van der Waals forces
Term
Hydrophobic effect
Definition
Things that have no charge are attracted to each other (fats, lipids, oil)
Term
Hydrophilic effect
Definition
Things that dissolve in water
Term
What makes up a hydrogen bond?
Definition
Two water molecules
Term
Cohesion
Definition
Water molecules stick together to keep the plant up
Term
Blood
Definition
acts as a buffer and maintains pH
Term
What happens when you pull hydrogen apart?
Definition
You get H+ and an electron
Term
Hydrocarbons
Definition
Simplest organic molecules
Term
Why can't there be a double bond between C and H
Definition
Because Hydrogen can only make one bond
Term
Strong acids
Definition
readily give up H+
Term
Weak acids
Definition
Partially give up H+
Term
What does lower pH mean?
Definition
More H+, the more protons, the lower pH
Term
Phosphate groups
Definition
Are surrounded by oxygen molecules
Term
Aldehyde groups
Definition
are always at the end of the carbon chain
Term
Monomer
Definition
Building block for a bigger molecule
Term
Hydrolysis
Definition
Adding water in between bonds, in monomers, break things down.
Term
Carbohydrates
Definition
Sugars and Starches
Term
Amino acids
Definition
make proteins
Term
Nucleotides
Definition
form DNA and RNA nucleic acids
Term
Lipids
Definition
fats, sterols, waxes, etc.
Term
Six Carbon Sugars
Definition
are structural isomers, and in some ways geometrical isomers
Term
Condensation
Definition
lose the OH and the H+, so losing a water molecule
Supporting users have an ad free experience!