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Answer Key
Table 1.1
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Respiration Rates Data for Rick Warner |
|
Task |
Liters (L) of Oxygen |
Time Measured
(sec) |
Respiration Rate in L/min |
| 1 |
6.5 |
8 |
48.75 |
| 2 |
5 |
5 |
60 |
| 3 |
5.5 |
5 |
66
|
| 4 |
8.3 |
10 |
49.8
|
| 5 |
4 |
7 |
34.29
(rounded to the nearest hundredth)
|
Homework
The analysis questions can
be assigned for homework if there is not enough
time to complete them in class.
Analysis Questions
Use the data in Table 1.1 to
answer the questions below.
-
During which task was Rick’s
respiration rate the highest?
Rick’s respiration rate was highest during task
3.
-
During which task was Rick’s
respiration rate the lowest?
Rick’s respiration rate was lowest during task
5.
-
What can you infer about the level of
physical effort needed for each task based on
Rick’s respiration rates?
The respiration rate is directly related to the
level of physical effort required for the task.
-
To conserve oxygen during an EVA, an
astronaut’s respiration rate is monitored so
that it does not reach the rate of 60 liters per
minute or more. Does Rick’s respiration rate
reach this critical threshold during any of the
tasks? If so, in which of the tasks did his
respiration rate reach 60 liters per minute or
more?
Yes. During tasks 2 and 3 Rick’s respiration
rate reached 60 liters per minute or more.
-
What recommendations would you give to
Rick if you were monitoring his respiration rate
during this EVA?
When his respiration rate is approaching 60
liters per minute, he should be ordered to rest
until his respiration rate lowers.
-
What types of activities on Earth
increase your respiration rate?
Running, jumping rope, swimming, and biking are
examples of activities that increase your
respiration rate on Earth.
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