the amount of energy needed to raise the tempeture of 1 gram of water 1 dgree celcius
the process in which one molecule of a glucose is broken in half, producing two molecules of pyruvic acid, a 3-carbon compound
an electron carrier that accepts a pair of high-energy electrons, helps to pass energy from glucose to other pathways in the cell
releases energy from food molecules producing ATP in the absence of oxygen
1) Alcoholic Fermentation
2) Lactic Acid Fermentation
does not require oxygen
pyruvic acid is broken down into carbon dioxide in a series of energy-extracting reactions aka citric acid cycle
Electron Transport Chain
uses high-energy electrons from the Krebs cycle to convert ADP into ATP
Name the stages of cellular respiration
Electron Transport, Glycolysis, and the Krebs Cycle
What are the reactants in the equation for cellular respiration?
What is the starting molecule for glycolyisis?
What is one cause of muscle soreness?
lactic acid fermentation
Which process is used to produce beer and wine?
The conversion of pyruvic acid into lactic acid requires.....
Which organism is NOT likely to carry out cellular resperation?
a) tree b) mushroom c) anaerobic bacterium d) tiger
During one turn, the Krebs cycle produces.....
electron carriers ( NADH, FADH2)
What passes high-energy electrons into the electron transport chain?
NADH and FADH2
Cellular respiration uses one molecule of glucose to produce....
36 ATP molecules
Breathing heavily after running a race is your bodys way of
repaying an oxygen debt
What are sources of energy during excercise?
stored ATP, lactic acid fermentation, and cellular respiration
Which process does NOT release energy from glucose?
Photosynthesis is to chloroplasts as cellular respirationis to
Plants cannot release energy from glucose using
Cellular respiration occurs only in the presence of
Without oxygen a cell can extract a net gain of only...... molecules of ATP from each glucose molecule
A high level of lactic acid in the blood is a sign that.....has occured
lactic acid fermentation
List the three main stages of cellular respiration in order. Where does each stage take place in the cell?
2) Krebs Cycle-mitochondria
Which type of fermentation does not give off carbon dioxide?
Lactic acid fermentation
What role does oxygen play in the electron transport chain?
oxygen in the final electron acceptor in the ETC
What three sources of ATP does your body use during a long aerobic excersice session?
stored ATP, ATP from cellular respiration, and lactic acid fermentation
Why is fermentation considered an anerobic process?
It produces ATP in the absence of oxygen
How does fermentation allow the production of ATP to continue
Cells convert NADH to NAD+ by passing high energy electrons back to pyruvic acid
How is pyruvic acid used in the Krebs Cycle?
it is broken down into carbon dioxide in a series of energy extracting reactions
How are glycolysis and cellular respiration related?
Cellular respiration requires oxygen where as glycolysis does not
What role do high-enery electrons play in the electron transport chain?
They use high-energy electrons from the Krebs Cycle to convert ADP to ATP
What are the reactants in cellular respiration? What are the products?
Oxygen and Glucose are the reactants, CO2, H2O and energy are the products