Chapter 9- Cellular Respiration Flashcards
is the catabolic pathwat of aerobic and anerobic resperation which break down organic molecules for the prouduction of ATP
Cellualar Respiration
living cells require___from outside sources
photosynthesis
energy flows into an ecosystem as sunlight and leave as
heat
photsynthesis generates oxygen and organic molecules are used in
cellualar respiration
cells use chemical energy to general what in order to power work
ATP
A partial degradation of sugars that occurs without oxygen
Fermentation–Anarobic
consumes organic molecules and oxygen and yields ATP-most effective
Aerobic respiration
Anaerobic respiration does not use?
oxygen
CHO, Fats, proteins are all consumed as
fuels
the breakdown of glucose is
Name 3
- catabolic
- has a negative delta G
- Results in energy being given off
chemeical reactions that transfer e- between reactants are called
Oxidatation -reduction or redox reactions
in oxidation a substance loses or gains an electon as its being oxidized
loses
in reduction a substance loses or gains an electon
gains
electron donor is called
reducing agent
elecron receptor is called
oxidizing agent
during celluar respiration the fuel is oxidized and the oxygen is
reduced
during cellular respiration, most electrons travel the “downhill route” from:
NADPH to NADH to the electron transport chain to oxygen
Respirations is the cumulative function of 3 metabolic stages:
- Gycolysis “sugar splitting”
- Citric Acid Cylce or Krebs Cycle
- Oxidative phosphorylation
All negative delta G are
Exergonic
all exergonic are
spontanious
the natural way things go-takes place without an external force and another reaction needed to drive it-may not happen very quickly
Spontanious reaction
can not occue without input from an external source. do not occur naturally
Nonspontanious reaction
Glycolysis occurs where
cytoplasm
Glycolysis produces how many net ATP for celluar respiration
2
Glycolosis is both
Anaerobic and aerobic
Gylcolosis produces 2 net ATP and 2
Pyruvate
pyruvic acid with oxygen
2 acetyl CoA
2 Acetyl CoA goes into the
Citric Acid Cycle or Krebs Cycle
2 ATP from the Citric Acid Cycle + 2 ATP from Glycolosis form:
Oxidative Phosphorlation and a net of 36-38 ATP and
Lactic acid fermentation by some fungi and bacteria is used to make
cheese and yogurt
Human muscle cells use lactic acis fermentation to
generate ATP when oxygen is depleted
carry out fermentation or anarobic respiration and cant survive in the presence of oxygen
obligate anerobes
surving using either fermentation or cellular respiration
facultative anaerobes
Gylcolsis produces
Net of 2 ATP and 2 pyruvic acid
Acetyl CoA connecta
he pyruvic acid of glycolsis to the citric acid cycle
Pyruvic acid in the cytosol enters the
mitochondria
A 2 carbon molecule of Acetyl CoA enters the
Citric Acid Cycle
Cyric Acid Cycle runs how many cycles
1 per Pyruvic Acid so 2 all together
Where is the Citric Acid Cycle located
Matrix of Mitochondria
What does the Citric Acid Cycle break up
the carbon Acetyl CoA into 2 Carbon Dioxides
