Exercise and CO2 Production Quiz

Why is it important to provide detailed instructions in the method section of your lab report?

• To make the report longer

• To confuse the readers

• To ensure that someone else can replicate the experiment

• To hide the procedure from others

How will you ensure reliability in your data collection?

• By only conducting the experiment once

• By repeating the experiment with multiple participants

• By changing the independent variable halfway through the experiment

• By collecting data at different times of the day

Why is it important to control variables in your experiment?

• To make the experiment more complicated

• To ensure that only one factor (the independent variable) affects the dependent variable

• To make the experiment more interesting

• To increase the chances of unexpected results

How will you measure the volume of CO2 produced by humans during exercise?

• By analyzing blood samples

• By measuring exhalation volume using a respiratory mask or mouthpiece

• By measuring heart rate

• By measuring body temperature

Which of the following is a safety concern when conducting this experiment?

• Risk of dehydration

• Risk of injury from exercise equipment

• Risk of contamination from exhaled air

• All of the above

Which of the following is NOT a control variable in your experiment?

• Rest time

• Diet

• Type of exercise

• Environmental temperature

What is the dependent variable in your investigation on how exercise affects the amount of CO2 produced by humans?

• The type of exercise performed

• The amount of CO2 produced

• The duration of exercise

• The heart rate during exercise

What is the purpose of establishing a baseline before starting the experiment?

• To compare the results of different participants

• To ensure that all participants are equally fit

• To provide a reference point for comparison during the experiment

• To determine the maximum level of exercise each participant can perform

What is the independent variable in your investigation?

• The amount of CO2 produced

• The duration of exercise

• The resting heart rate

• The type of exercise performed

What is the hypothesis statement supposed to include?

• A prediction of the results based on personal beliefs

• A statement of how the independent variable will affect the dependent variable

• A summary of the data collected during the experiment

• A description of the control variables used in the experiment