Flashcards in lecture 1.10 Deck (33):
as in take apart
as in put together
usable energy-producing reactions or fueling reactions
provide ready source or reducing power (electrons)
generate precursors for biosynthesis
the synthesis of complex organic molecules from simpler ones
requires energy derived by fueling reactions
Describe the first law of thermodynamics
Energy can be neither created nor destroyed
Total energy in universe remains constant
Describe the second law of thermodynamics
Entropy--amount of disorder in a system
Physical and chemical processes proceed in such a way that the disorder of the universe increases
amount of heat energy needed to raise 1 gram of water from 14.5 to 15.5°C
units of work capable of being done by a unit of energy
1 cal = ___ joules?
1 cal of heat is equivalent to 4.1840 J of work
if G is negative, reaction is _________
if G is positive, reaction is ___________
if G = 0, reaction is __________
Exergonic reaction, then G is ______
Endergonic reactions, then G is ________
Exergonic reactions means the reaction will _______
Endergonic reactions mean the reactions will ________
not proceed spontaneously
What is an oxidation reaction?
Electron carriers are often used to transfer electrons from an electron donor to an electron acceptor
more negative E0 means
better electron donor
more positive E0 means
better electron acceptor
The greater the difference between the E0
of the donor and the E0 of the acceptor means what in terms of G?
the more negative the Go´
What are some examples of electron carriers?
NAD, NADP, FAD, Coenzyme Q
What are the two types of Chemoorganotrophic energy supply?
What are the two types of respiration and their differences?
aerobic: terminal electron acceptor is O2
anaerobic: some other terminal electron acceptor
What has no exogenous electron acceptor?
How does respiration primarily make ATP?
PMF or proton motive force
What is the main difference in regards to making energy for aerobic and anaerobic?
Anaerobic does not use the Electron Transport Chain (ETC)
Function both as catabolic and anabolic pathways
What is important about the Embden-Meterhof Pathway (EMP)
There is a net of two ATP and 2 NADH
What is the summary of Glycolysis?
glucose + 2ADP + 2Pi + 2NAD+
2 pyruvate + 2ATP + 2NADH + 2H+
What is important about the Enter-Duodoroff Pathway? (EDP)
Yeilds 1 ATP, 1NADPH, 1NADH
What are examples of the amphilbolic pathways?
Embden- Meterhof, Enter-Duodoroff, Pentose Phosphate
What is important about the Pentose Phosphate System
2 NADPH and two of 12 major precurosrs