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Labster Cellular Respiration Measuring Energy Consumption During Exercise

Terms in this set (14)

Metabolism can be divided into catabolic and anabolic reactions. How are these connected?
Catabolic reactions generate energy that anabolic reactions use
So in summary, glycolysis breaks down glucose into 2 pyruvate molecules. How many carbon atoms does one molecule of pyruvate contain?
3 carbon atoms
The first step of glycolysis consumes energy. Two high energy ATP molecules phosphorylate glycose. How do ATP molecules store energy?
High energy bonds between phosphate groups
What action would you recommend to the point guard?
Drink a maltose sports drink
After glycolysis, the pyruvate molecules can follow two different metabolic routes: aerobic and anaerobic respiration. What is the main difference between these?
Anaerobic respiration does not need oxygen to occur and aerobic respiration does
What is the net result of one glucose molecule going through the Krebs cycle?
All options
Why is the Krebs cycle so important if it only produces 2 ATP molecules?
It produces reducing agents for the electron transport chain
What two processes are occupies throughout the ETC that together make up oxidative phosphorylation?
The oxidation of electron carriers and the phosphorylation of ADP
Which parameters could you use to measure the effect of exercise on cellular respiration in mice?
All options
What is oxygen used for in cellular respiration?
Oxygen is the last electron acceptor in the oxidation of electron carriers
make a hypothesis: what will happen to oxygen consumption levels when the mouse starts running in the wheel?
Oxygen consumption will increase
Was your guess right? Did the oxygen consumption increase?
Yes
Which experiment would you perform to test what happens under extreme exercise conditions?
Make the mouse run at high speed with low oxygen availability
From what you learned about glycolysis, what is the ATP yield per each molecule of glucose under low oxygen conditions?
2 ATP molecules from glycolysis
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