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Biology Ch. 9

Chapter 9 - Cellular Respiration and Fermentation

QuestionAnswer
What must be present for the Krebs cycle to occur? Oxygen
In the Krebs cycle, the carbon atoms in a three-carbon molecule are released in? one molecule of glucose
The 3 sources of energy for humans during exercise are? cellular respiration, lactic acid formentation, stored ATP
Cellular respiration releases energy by breaking down? food molecule
Cellular respiration takes place in? mitochondria
Electron transport takes place in? inner mitochondrial membrane
What organism is NOT likely to carry out cellular respiration? bacteria
What makes bread bubbly and spongy? alcohol fermentation
What electron carrier plays a role in cellular respiration? NAD+
High-energy electrons provide energy needed to? convert ADP molecules into ATP molecules
Why do you breathe heavily after running a race? Your body in replenishing its oxygen that was lost
What is a product of cellular respiration? Water (H2O)
NAD+ is regenerated, allowing glycolysis to continue during what? fermentation
Glycolysis provides a cell with a neet gain of how many ATP molecules? 2
What are the 3 products of glycolysis? pyruvic acid, ATP, NADH
Why do well-conditioned athletes have to pace themselves for long events? because cellular respiration releases energy more slowly than fermentation does
The Krebs cycle produces? CO2 (carbon dioxide)
What takes place in the cytoplasm of the cell? Glycolysis
Cellular respiration takes place in what type of cell? all eukaryotic cells
What energy do you use to win a fast sprint? lactic acid fermentation
What molecule starts the Krebs cycle? pyruvic acid
How do organsims get the energy they need? breaking down food molecules
An aerobic process requires? Oxygen
What process does not release energy from glucose? photosynthesis
What are the 2 main types of fermentation? alcohol and lactic acid
Equation for cellular respiration 6CO2 + C6H12O6 => 6CO2 +6H20 + Energy
What are the stages of cellular respiration? Glycolysis, Krebs cycle, electron transport
Which high-energy electrons pass to the electron transport chain? NADH and FADH2
Glycolysis requires? ATP
What type of fermentation is used yogurt production? lactic acid
The Krebs cycle releases eneergy in the form of? ATP
In prokaryotes, the electron transport chain is lacted in the? cell membrane
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