Biology (Mader), 10th Edition

Chapter 8: Cellular Respiration

Energy for Activity

How much energy is used during different kinds of exercise? Exercise involves the expenditure of energy. The energy can be generated either through aerobic or anaerobic cellular respiration. In either case energy stored in the chemical bond of biological molecules is transferred to the molecule Adenosine Triphosphate (ATP) by adding an additional phosphate molecule to Adenosine Diphosphate (ADP). Muscle contractions are powered by the conversion of ATP back to ADP and phosphate. Exercise that involves more intense muscle contractions or muscle contractions over a longer period of time uses more energy than brief or less intense exercise.

View the animation below, then complete the quiz to test your knowledge of the concept.



1.

A 150 pound person who does 30 minutes of running at a general jogging pace, uses approximately how many kcals for this activity?
A)57 kcals
B)194 kcals
C)238 kcals
D)310 kcals
2.

Doing which of the following activities would a person use the least number of activity calories?
A)general jogging
B)water jogging
C)jogging on a mini-trampoline
D)jogging in place
3.

How many calories for activity would a 190 pound woman use doing general cleaning around her house for 45 minutes?
A)57 kcals
B)194 kcals
C)238 kcals
D)310 kcals
4.

How many activity calories would a 150 pound student use sitting in a 50 minute class?
A)57 kcals
B)194 kcals
C)238 kcals
D)310 kcals
5.

How many more kcals does a 150 pound student use in 30 minutes of general breaststroke swimming as opposed to 30 minutes of slow freestyle swimming?
A)68 kcals
B)0 kcals, they are the same
C)215 kcals
D)102 kcals
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