Practice 2.1.5. Describe nervous and chemical control of ventilation during exercise. with authentic IB Sports, exercise and health science (SEHS - Old) exam questions for both SL and HL students. This question bank mirrors Paper 1, 2, 3 structure, covering key topics like core principles, advanced applications, and practical problem-solving. Get instant solutions, detailed explanations, and build exam confidence with questions in the style of IB examiners.
What causes an increase in ventilation?
Which are involved in neural control of ventilation?
State the receptor in the artery which responds to carbon dioxide and pH levels in the blood.
Outline the role of cholinesterase in muscle contraction.
Explain the role of myosin in muscle contraction after adenosine triphosphate (ATP) is broken down and releases energy.
List one type of blood cell.
Outline three reasons why overtrained athletes may be more susceptible to infection.
Explain the differences in dietary recommendations for a training marathon runner and a sedentary individual both with healthy body mass index (BMI).
Describe how the pituitary gland is regulated by the hypothalamus.
Outline the nervous control and mechanics of inspiration during physical activity.
What factors may cause breathing to increase during physical activity?
State the position and role of the pituitary gland.
Describe excess post-exercise oxygen consumption (EPOC) and its role during the recovery phase.
Describe how cardiovascular drift takes place.
Explain the chemical control of ventilation during exercise.
Analyze the physiological factors that contribute to peripheral fatigue during long-distance running.
What does the increased respiration rate after physical activity allow the body to do?
Describe the sliding filament theory following the increase in muscle membrane permeability caused by acetylcholine (ACh).
Explain the concept of oxygen deficit.
Provide a sporting example to predict how a change in radius influences the speed of rotation.
Describe the chemical control of ventilation during exercise.
What causes the change in blood acidity that results in increased ventilation?