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Exam 1
Bio Anne Rushing
41
Biology
Undergraduate 1
01/29/2013

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Term
Adhesion
Definition
holding together of different kinds of molecules
Term
Cohesion
Definition
The force of attraction between similar molecules. The force that holds all molecules of one type of matter or object altogether.
Term
The specific heat of water
Definition
1 cal per gram per degree Celcius (1 cal/g/oC)
Term
Reason for water's high specific heat
Definition
Heat is required to overcome hb before average kinetic energy increases and temperature rises.
Term
How water stabilizes temperature
Definition
by absorbing heat from warmer air and releasing heat to cooler air
Term
Thermal properties of water
Definition
A. Specific Heat
B. Heat of Vaporization
Term
Heat of Vaporization of water
Definition
580 cal per 1 g at room temperature.
Term
Why ice floats
Definition
Ice has a lower density than water
Term
Solvent part of a solution
Definition
The liquid portion
Term
The solute portion of a solution
Definition
the substance dissolved in the solvent
Term
Function of buffers
Definition
accept H+ from the solution when in excess and donate H+ when depleted
Term
Important buffer in human blood and other biological solutions and also acts as a pH regulaor.
Definition
Carbonic Acid
Term
Molarity
Definition
The number of moles per liter of solution
Term
Variations in Carbon skeleton
Definition
Length
Double bond position
Presence of rings
Branching
Term
Hydrocarbons
Definition
Composed of hydrogen and carbon atoms
Carbon forms backbone/skeleton
Hydrogen atoms covalently attached
Term
Bonds Hydrocarbons make
Definition
Single bonds only, CnH2n + 2
One double bond, CnH2n
(Rings don't follow that formula though)
Term
How to tell if a hydrocarbon is a single double bond or a single only bond
Definition
Ane - single bond only
Ene - single double bond
Term
Isomers
Definition
Variations in the way atoms of a molecule are put together. Same molecular formula but different structure. Usually have different chemical properties
Term
Three types of isomers
Definition
Structural isomers, Cis-trans isomers,Enantiomers
Term
Cis isomers
Definition
: The two Xs are on the same side.
Term
trans isomer
Definition
: The two Xs are on opposite sides
Term
Structural isomers
Definition
Same molecular formula
Different covalent arrangement
Term
Cis-trans isomers
Definition
Same molecular formula
Same covalent partnerships
Differ in arrangement around C=C
Double bond does not allow free rotation
Term
Enantiomers,
Definition
Mirror image isomers
Require an asymmetric carbon
Term
Asymmetric
Definition
four different atoms or groups of atoms attached to the carbon
Term
Aldehydes and Ketones are both...
Definition
in the carbonyl category
Term
Functional group that works as a base
Definition
Amino
Term
Functional group that works as an acid
Definition
Carboxyl
Term
How plants store polysaccharides
Definition
Starch
Term
How animals store polysaccharides
Definition
Glycogen
Term
What Structural polysaccharides are made of
Definition
Beta glucose monomers
Term
Functions of lipids
Definition
energy storage, protection, insulation, membranes, hormones
Term
Types of lipids
Definition
Fats or triglycerides, Phospholipids, Steroids
Term
Fates
Definition
Made of two kinds of smaller molecules, glycerol & fatty acids
Components joined by dehydration synthesis
Term
Glycerol -
Definition
a 3 carbon skeleton with 3 hydroxyl groups
Term
• Fatty acid
Definition
a carboxyl group attached to a long carbon skeleton, often 16 to 18 carbons long.
Term
. Phospholipids
Definition
Major components of cell membranes
Modified fats
Term
Steroids
Definition
lipids with carbon skeleton of 4 carbon rings
Term
Proteins
Definition
Polymers of amino acid subunits
Many, Many, Many +++ functions
Term
Function of storage proteins
Definition
Storage of amino acids
Term
Function of
Structural proteins
Definition
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