Cellular Respiration
Glycolysis
Krebs Cycle
Fermentation and ETC
100
Cellular respiration uses one molecule of glucose to produce how many molecules of ATP?
36
100
Glycolysis provides a cell with a net gain of ___ ATP molecules.
2
100
The Krebs cycle starts with ________ and yields ________
Pyruvic acid, carbon dioxide
100
A person who regularly does aerobic exercise takes in _______ oxygen than a sedentary person.
more
200
List the sequence of events in cellular respiration.
Glycolysis > Krebs cycle > electron transport chain
200
The starting molecule for glycolysis is
glucose
200
The Krebs cycle releases energy in the form of ______
ATP
200
The energy needed to win a 2-minute footrace is produced mostly by
lactic acid fermentation
300
What is the equation for cellular respiration?
6O2 + C6H12O6 > 6CO2 + 6H2O + Energy
300
In the presence of oxygen, glycolysis is followed by
the Krebs Cycle
300
_______ and ________ carry electrons from the Krebs cycle to the electron transport chain.
NADH and FADH2
300
The conversion of pyruvic acid into lactic acid requires
NADH
400
How are cellular respiration and photosynthesis almost opposite processes?
Photosynthesis removes carbon dioxide from the atmosphere, and cellular respiration puts it back.
400
The produces of glycolysis are 2 ATP, __________, and ____________ molecules.
2 NADH, 2 pyruvic acid
400
Two turns of the Krebs cycle will result in ______ ATP molecules.
2
400
What is the main function of the electron transport chain?
The electron transport chain uses high-energy electrons from the Krebs cycle to convert ADP into ATP
500
Where in the cell do the three main stages of cellular respiration take place?
Glycolysis-cytoplasm Krebs cycle-mitochondria Electron transport-mitochondria
500
Describe glycolysis in terms of energy input, energy output, and net gain of ATP.
Glycolysis requires an initial input of 2 ATPs and produces 4 ATPs, for a net gain of 2 ATPs.
500
Why is the Krebs cycle also known as the citric acid cycle?
Citric acid is the first compound formed in the process.
500
What are the two types of fermentation? How do their products differ?
Alcoholic fermentation produces carbon dioxide, alcohol and NAD+, whereas lactic acid fermentation produces lactic acid and NAD+
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