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Biology
8th -
12thgrade
Regents LE Labs Part D - #2 Making Connections
14 questions
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- 1. Multiple Choice
During periods of vigorous physical activity, a person’s breathing and heart rates increase. This enables the cells of the body to perform more efficiently because it helps the cells to
remove waste products faster
store excess glucose in muscles
reduce the amount of ATP produced
convert more oxygen to glucose
- 2. Multiple Choice
A student is opening and closing clothespins as part of a lab activity. The student begins to experience muscle fatigue, and the rate at which the student is opening and closing the clothespins slows. Which graph best represents the relationship between time and number of clothespin squeezes?
1
2
3
4
- 3. Multiple Choice
Students wanted to try PRE to increase their ability to rapidly squeeze a clothespin. They thought if they could do this, they could challenge another class to a clothespin squeezing competition and win. Which steps should the students take to follow the principles of PRE?
Measure their pulse rate after squeezing the clothespin until fatigued. Then increase the resistance of the clothespin for the next trial.
Squeeze a clothespin until fatigued, rest, and repeat. Over time, they should gradually increase the resistance of the clothespins they are squeezing.
Measure their pulse rate, squeeze a clothespin for one minute, rest, and measure their pulse rate.
Squeeze a clothespin for as long as they can, measure their pulse rate, rest, eat some candy. Increase the resistance of the clothespin for the next trial.
- 4. Multiple Choice
Students following the principles of PRE monitored their ability to lift weights. Which observation would indicate that their exercise program was successful?
They could eventually lift heavier weights than when they started.
Their pulse rate increased more rapidly as they kept lifting weights.
The number of weights their group could lift during competition decreased.
Males and females could lift the same weight an equal number of times during competition.
- 5. Multiple Choice
Which statement is best supported by the data in the chart?
After exercise, the nonathletic students had a lower heart rate than the athletic students.
After exercise, the heart rates of the athletic students returned to resting pulse in four minutes.
During exercise, both groups of students had the same increase above their resting pulse.
During exercise, the athletic students had a higher heart rate than the nonathletic students.
- 6. Multiple Choice
To improve the validity of the conclusion reached in this experiment, the students should repeat the experiment
disregarding any data that don’t fit the hypothesis
with a larger number of athletes and nonathletes
comparing the heart rates and breathing rates of males and females
with the athletes doing different exercises than the nonathletes
- 7. Multiple Choice
An investigation is carried out to determine the effect of exercise on the rate at which a person can squeeze a clothespin.
Muscle fatigue occurs during the activity described when
certain waste products collect in the muscle cells
simple sugar is converted to starch in the muscle cells
carbon dioxide is used up in the muscle cells
proteins accumulate in mitochondria in the muscle cells
- 8. Multiple Choice
A student is opening and closing clothespins as part of a lab activity. The student begins to experience muscle fatigue, and the rate at which the student is opening and closing the clothespins slows.
The fatigue the given student feels is due to
a decrease of metabolic waste products in the
muscles
a decrease in the pulse rate of the student
an increase in the pulse rate of the student
an increase of metabolic waste products in the
muscles
- 9. Multiple Choice
In an experiment to determine the effect of exercise on pulse rate, a student checks his pulse rate before and after exercising for several minutes. The purpose of checking his pulse rate before exercising is that it
is needed to formulate a hypothesis
is needed to justify the sample size
serves as a control for the experiment
serves as the conclusion for the experiment
- 10. Multiple Choice
Which activity most likely corresponds to the pulse rate of the person while sleeping?
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- 11. Multiple Choice
One student checks his pulse and counts 23 beats over a time interval of 20 seconds. In which row in the data table should the pulse rate of this student be recorded?
A
B
C
D
- 12. Multiple Choice
Students in a science class took their pulse rates before and after they ran in place for one minute. The class data showed that pulse rates increased with exercise. A graph of the data would look most like
- 13. Multiple Choice
During this activity, what was the purpose of finding the respiratory rates of the students at rest?
to determine if the students were healthy
to practice using the timer
to use as a comparison
to use as the variable
- 14. Multiple Choice
The different tools (such as spoons, chopsticks, or pliers) used during The Beaks of Finches laboratory activity represented variations in
feeding adaptations
seed size
finch migration
island ecosystems
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