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Making Connections in Biology: Effects of Exercise on Muscle Performance and Pulse Rate, Schemes and Mind Maps of Biology

EHSAL - Europese Hogeschool BrusselBiology

A set of lab questions and answers related to an experiment investigating the effect of exercise on muscle performance and pulse rate. Students are asked to analyze data from various experiments and answer related questions. Topics covered include muscle fatigue, pulse rate, and the relationship between exercise and pulse rate.

Typology: Schemes and Mind Maps

2021/2022

Uploaded on 08/05/2022

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Name___________________________Date______________________
BiologyMaking Connections QuestionsPeriod_________
Page 1
A)Students who rest before squeezing a
clothespin will squeeze it fewer times in 1
minute than students who exercise
beforehand
B)Can most students squeeze a clothespin more
times after they rest?
C)Do students squeeze clothespins more often in 1
minute after exercising?
D)Ten students who exercise before squeezing a
clothespin squeezed it more times in 1 minute
than ten students who rested first.
1.An experiment was designed to test whether students
could squeeze a clothespin more times in 1 minute
after resting or after exercising. What would be a
hypothesis for the experiment?
Base your answers to questions 2 and 3 on the information below and on your knowledge of biology.
An experiment was designed to test whether students could squeeze a clothespin more times in one
minute after resting or after exercise.
A)increasing the number of students
B)using safety precautions
C)making a bar graph of the data
D)using a plastic clothespin
2.The experimental results could be made more valid by
A)strength of the student
B)time the student was squeezing the clothespin
C)length of the clothespin
D)number of times the student was able to squeeze the clothespin
3.The dependent variable for this experiment is the
Base your answers to questions 4 and 5 on
on the information below and on your knowledge of
biology.
An investigation is carried out to determine
the effect of exercise on the rate at which a
person can squeeze a clothespin
A)carbon dioxide is used up in the muscle cells
B)certain waste products collect in the muscle
cells
C)simple sugar is converted to starch in the muscle
cells
D)proteins accumulate in mitochondria in the
muscle cells
4.Muscle fatigue occurs during this activity when
A)rate of squeezing
B)number of participants
C)exercise
D)control
5.In this investigation, the independent variable is the
A)increased glucose production in the muscle
B)the runner warming up before running
C)lack of adequate oxygen supply to the muscle
D)the runner running too slowly
6.A marathon runner frequently experiences muscle
cramps while running. If he stops running and rests,
the cramps eventually go away. The cramping in the
muscles most likely results from
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Name___________________________ Date______________________

Biology Making Connections Questions Period_________

A) Students who rest before squeezing a clothespin will squeeze it fewer times in 1 minute than students who exercise beforehand B) Can most students squeeze a clothespin more times after they rest? C) Do students squeeze clothespins more often in 1 minute after exercising? D) Ten students who exercise before squeezing a clothespin squeezed it more times in 1 minute than ten students who rested first.

  1. An experiment was designed to test whether students could squeeze a clothespin more times in 1 minute after resting or after exercising. What would be a hypothesis for the experiment? Base your answers to questions 2 and 3 on the information below and on your knowledge of biology. An experiment was designed to test whether students could squeeze a clothespin more times in one minute after resting or after exercise. A) increasing the number of students B) using safety precautions C) making a bar graph of the data D) using a plastic clothespin
  2. The experimental results could be made more valid by A) strength of the student B) time the student was squeezing the clothespin C) length of the clothespin D) number of times the student was able to squeeze the clothespin
  3. The dependent variable for this experiment is the Base your answers to questions 4 and 5 on on the information below and on your knowledge of biology. An investigation is carried out to determine the effect of exercise on the rate at which a person can squeeze a clothespin A) carbon dioxide is used up in the muscle cells B) certain waste products collect in the muscle cells C) simple sugar is converted to starch in the muscle cells D) proteins accumulate in mitochondria in the muscle cells
  4. Muscle fatigue occurs during this activity when A) rate of squeezing B) number of participants C) exercise D) control
  5. In this investigation, the independent variable is the A) increased glucose production in the muscle B) the runner warming up before running C) lack of adequate oxygen supply to the muscle D) the runner running too slowly
  6. A marathon runner frequently experiences muscle cramps while running. If he stops running and rests, the cramps eventually go away. The cramping in the muscles most likely results from

Base your answers to questions 7 through 9 on the histograms below and on your knowledge of biology. Students in a class recorded their resting pulse rates and their pulse rates immediately after strenuous activity. The data obtained are shown in the histograms below.

  1. State one biological explanation for the fact that not all students had the same resting pulse rate. A) remained the same B) decreased C) decreased and leveled off D) increased
  2. According to the data, compared to the average resting pulse rate, the average pulse rate immediately after strenuous activity generally A) Number of Students B) Amount of Exercise C) Time (min) D) Average Number of Heartbeats
  3. An appropriate label for the y -axis in each histogram would be
  1. Base your answer to the following question on the information below and on your knowledge of biology. A student squeezes and releases a clothespin as often as possible for 2 minutes and then takes his pulse for 20 seconds. After a 2-minute rest, he repeats the procedure. This pattern is repeated one more time.The studentโ€™s 20-second pulse counts were 23, 26, and 21. Complete the โ€œPulse/Minโ€ column in the data table below for all three trials as well as the average pulse rate per minute.
  2. A student hypothesizes that the pulse rate of a person and background music that is playing are related. The student designs an experiment to test this hypothesis. What would be an appropriate control for this experiment? Base your answers to questions 15 through 18 on the data table below and on your knowledge of biology. A group of students obtained the following data:
  3. The activity of which body system was measured to obtain these data?
  4. The activity of which other body system would be altered as a direct result of the exercise?
  5. What effect would exercise have on the system you identified in the previous question?
  6. Explain how this change in pulse rate helps maintain homeostasis in muscle cells.
  1. On a television talk show, a guest claims that people who exercise vigorously for 15 minutes or more every day are able to solve math problems more rapidly than people who have no vigorous exercise in their daily routine. Describe a controlled experiment that could be conducted to test this claim. In your description be sure to:
    • state the purpose of the experiment
    • state why the sample to be used should be large
    • describe how the experimental group will be treated and how the control group will be treated
    • state the specific data to be collected during the experiment
    • state one way to determine if the results support the claim

Answer Key

Making Connections Lab Quiz

1. A

2. A

3. D

4. B

5. C

6. C

  1. Examples: โ€” The students were different sizes or weights. โ€” The students were different sexes. โ€” The students had different levels of physical fitness. โ€” Metabolic rates vary. โ€” genetic variation
  2. D
  3. A
  4. Examples: โ€“ The average pulse rate would be higher. โ€“ Increased activity causes an increase in pulse.
  5. A
  6. Examples: โ€” did not obtain pulse rates before lunch โ€” sample size too small โ€” no control group
    1. Acceptable responses include, but are not limited to: โ€” no music being played while the pulse is being taken โ€” silence while the pulse is being taken
    2. Circulatory system.
    3. Acceptable responses include, but are not limited to: โ€” respiratory system โ€” excretory system
    4. Acceptable responses include, but are not limited to: Respiratory: โ€” increased breathing rate Excretory: โ€” increased perspiration
    5. Acceptable responses include, but are not limited to: โ€” An increased pulse rate indicates an increased blood flow that carries excess carbon dioxide away from the muscle cells. โ€” More oxygen is carried to the muscle cells. โ€” The increased blood flow carries excess heat away from the muscle cells.
      1. (essay)

Answer Key

Making Connections Lab Quiz

  1. Examples : โ€ข Determine if exercise improves the rate at which math problems are solved. โ€” Test the guestโ€™s claim.
    • A large sample size will increase the validity/reliability of the experiment.
    • one group (the experimental group) will exercise and the other group (the control group) will not exercise.
    • speed of solving math problems โ€” number of math problems solved in a certain amount of time โ€” how fast math problems can be solved
    • See if the experimental group solves math problems more rapidly than the control group. โ€” Compare the number of math problems solved by the experimental and control groups in a given time period.