Making Connections State Lab

What is muscle fatigue?

• A permanent loss of muscle strength

• A temporary inability of a muscle to maintain its strength of contraction or tension

• A condition that only affects athletes

• An increase in muscle size due to exercise

What is a control group in an experiment?

• A group that receives the treatment or intervention.

• A group that does not receive the treatment or intervention, used as a benchmark to measure how the other tested subjects do.

• A group that is randomly selected from the population.

• A group that is used to manipulate the variables in the experiment.

What are waste products in muscle cells?

• Lactic acid

• Glucose

• Oxygen

• Carbon dioxide

What system is responsible for transporting materials from the digestive and respiratory systems to cells?

• The respiratory system

• The digestive system

• The circulatory system

• The nervous system

What is the resting pulse rate?

• The number of heartbeats per minute when a person is at rest.

• The maximum heart rate during intense exercise.

• The average heart rate during sleep.

• The heart rate measured after physical activity.

How can observations be made in an experiment?

• By ignoring the experimental group and focusing on the control group.

• Through careful monitoring of the experimental group and recording changes or effects.

• By conducting the experiment without any data collection.

• By relying solely on theoretical predictions.

What is the relationship between exercise and heart rate?

• Exercise has no effect on heart rate.

• Exercise typically decreases heart rate as the body relaxes.

• Exercise typically increases heart rate as the body requires more oxygen and nutrients during physical activity.

• Exercise only affects heart rate during intense workouts.

What is the role of mitochondria in muscle cells?

• Mitochondria are responsible for protein synthesis in muscle cells.

• Mitochondria are the powerhouses of the cell, where energy production occurs, and they play a crucial role in muscle function.

• Mitochondria help in the storage of calcium ions in muscle cells.

• Mitochondria are involved in the detoxification of harmful substances in muscle cells.

What is the significance of recording data in a data table?

• It helps organize information systematically, making it easier to analyze and draw conclusions.

• It allows for random data entry without any structure.

• It is only useful for small datasets and not for large ones.

• It serves no real purpose in data analysis.

What is the effect of exercise on muscle performance?

• Exercise has no effect on muscle performance.

• Exercise can improve muscle performance by increasing strength, endurance, and efficiency.

• Exercise only increases muscle size without affecting performance.

• Exercise can lead to muscle fatigue and decreased performance.