AP Bio Chapter 6 Flashcards
(30 cards)
energy
ability to do work or bring about change.
Kinetic energy
motion
Potential
stored energy
chemical energy
food energy- composed of organic molecules
mechanical energy
conversion of chemical energy into motion
law of thermodynamics
energy cannot be vreated or destroyed only changed from one form to another
conversion of energy is never 100% effective-loss of usable energy
entropy
disorganization
free energy
energy left to do work after a chemical reaction
exergonic
spontaneous, releases energy has a positive delta G- example Cell Resp
endergonic
requires energy- negative delta G
Metabolism
sum of all the chemical reactions in a cell
coupled reaction
needs ATP and produces ATP
enzyme
speed chemical reactions without being affected by the reaction, a protein
ribozymes
made of RNA instead of proteins
metabolic pathways
series of linked reactions
substrate
reactants in enzymatic reactions
active site
place of chemical reaction
induced fit
enzyme changes slightly to fit substrate
factors that change enzyme productivity
amount of substrate, amount of enzymes, PH, temperature, co factors, inhibition
denature
change in shape
co factors
inorganic ion or non protein at the active site that makes it work properly
co enzyme
non protein organic molecules
vitamins
co enzymes needed in peoples diets
inhibitions
limit enzyme activity
