Flashcards in Bio 141 Notes (1/30/2014) Deck (22):
Unsaturated (double bonds)
First Law of Thermodynamics
Conservation of energy: cannot be created or destroyed (can be transferred)
ex. of biological transfer - energy comes from food, energy in food comes from photosynthesos
molecules retain some of the energy used to make them
reactions require energy imput
breakdown of molecules can release energy
reactions release energy
The sum of all reactions in a particular organism
Simple -> Complex (build up)
Complex -> Simple (break down)
Second Law of Thermodynamics
Disorder tends to increase
energy transfer is inefficient
some energy escapes the heat
a unit of energy
originally determined using a 'bomb calorimeter'
DNA and RNA consist of...
Proteins (polypeptides) consist of ...
phosphate +5-C sugar + base
Bases contain two or more...
often called 'nitrogenous'
RNA - Uracil (U)
1 ring shape
2 ring shape
matching between neucleotide pairs
A - T
C - G
two complementary DNA strands
essentially duplicating the same strands
copy instructions from DNA and convey them to the protein making ribose
deliver amino acids to a developing protein in right order
compose part of the ribose