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42 Cards in this Set
- Front
- Back
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Which is NOT a stage of cellular respiration?
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Fermentation
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Which is the correct sequence of events in cellular respiration?
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Glycolysis -> Krebs cycle -> electron transport
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What is the correct equation for cellular respiration?
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6O2 + C6H12O2 + 6H2O + Energy
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Cellular respiration releases energy by breaking down...
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food molecules
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What are the reactants in the equation for cellular respiration?
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Glucose and oxygen
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Which is a product of cellular respiration?
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water
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What process takes place in the cytoplasm of the cell?
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Glycolysis
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Glycolysis provides a cell with a net gain of...
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2 ATP molecules
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Which is NOT a product of glycolysis?
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Glucose
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What acts as an electron carrier in cellular respiration?
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NAD+
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Lactic acid fermentation occurs in...
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Muscle cells
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The two main types of fermentation are called...
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Alcoholic and lactic acid
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One cause of muscle soreness is...
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Lactic acid fermentation
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During lactic acid fermentation...
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NAD+ is regenerated, allowing glycolysis to continue.
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In the presence of oxygen, glycolysis is followed by...
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The Krebs cycle
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The starting molecule for the Krebs cycle is...
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Pyruvic acid
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The Krebs cycle produces...
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Electron carriers
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The Krebs cycle starts with...
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Pyruvic acid and yields carbon dioxide
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What passes high-energy electrons into the electron transport chain?
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NADH and FADH2
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Each pair of high-energy electrons that moves down the electron transport chain provides enough energy to...
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Convert 3 ADP molecules into 3 ATP molecules
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The energy off the electrons passing along the electron transport chain is used to make...
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ATP
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Breathing heavily after running a race is your body's way of...
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Repaying an oxygen debt
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When the body needs to exercise for a marathon, it generates ATP by...
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Cellular respiration
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The energy needed to win a 2-minute footrace is produced mostly by...
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Using up stores of ATP
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How do you explain why even well-conditioned athletes have to pace themselves for athletic events that last several hours?
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Cellular respiration releases energy more slowly than fermentation does.
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How are cellular respiration and photosynthesis almost opposite processes?
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Photosynthesis removes carbon dioxide from the atmosphere, and cellular respiration puts it back.
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Cellular respiration releases energy by breaking down glucose in the presence of carbon dioxide.
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False.
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If animal cell stops carrying out cellular respiration, it will die.
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True.
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Either cellular respiration or fermentation can be used to release energy, depending on the presence of carbohydrates.
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False.
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NADH and FADH2 carry electrons from the Krebs Cycle to the electron transport chain.
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True.
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The first few seconds of intense exercise use up the cell's stores of fat.
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False.
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During the coarse of a long race, a person's muscle cells will use both cellular respiration and lactic acid fermentation to produce ATP.
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True.
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Glycolysis can occur in the presence of or without the presence of oxygen.
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True.
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The Kreb's cycle and the electron transport chain occur in the cytoplasm.
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False.
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Cellular respiration occurs only in the presence of _______.
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O2
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The three stages of cellular respiration are _________, the Krebs cycle, and _________________.
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Glycolysis; ETC
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Without oxygen, a cell can extract a net gain of only ____ molecules of ATP from each glucose molecule.
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2
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Glycolysis converts glucose into two molecules of _______ ______.
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Pyruvic acid
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The _______ is a series of carrier proteins.
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ETC
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The body gets rid of lactic acid in a chemical pathway that requires ______.
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O2
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A high level of lactic acid in the blood is a sign that ____________________ has occured.
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Lactic acid fermentation
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A person who regularly does aerobic exercises takes in ______ oxygen than a sedentary person.
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More
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