Practice A.1.2 Maintaining homeostasis with authentic IB Sports, exercise and health science (SEHS) exam questions for both SL and HL students. This question bank mirrors Paper 1A, 1B, 2 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.
Paper
Level
Question 1
SLPaper 2
1.[2]
Identify two systems that collaborate to regulate ventilation.
2.[2]
State two factors that increase ventilation rate during intense exercise.
3.[3]
Describe how partial pressure gradients drive the exchange of gases during exercise.
4.[4]
Explain how the circulatory system compensates for increased oxygen demand during interval training.
5.[4]
Outline the importance of cardiovascular control centers in adapting to variable intensity workloads.
6.[5]
Discuss the consequences of impaired gas exchange on homeostasis and athletic performance.
Question 2
SLPaper 2
1.[2]
State the role of the hypothalamus in temperature regulation.
2.[2]
Identify two internal conditions regulated by homeostatic mechanisms.
3.[3]
Describe how the nervous system responds to an increase in body temperature.
4.[3]
Describe the function of insulin in blood glucose regulation.
5.[5]
Explain the role of the lungs in the transport of gases during exercise.
6.[5]
Discuss how the endocrine and nervous systems work together to maintain homeostasis during exercise.
Question 3
SLPaper 1A
Based on the graph, which of the following best explains the observed glucose trends?
Question 4
SL & HLPaper 1A
During a marathon, what is the main goal of homeostasis?
Question 5
SL & HLPaper 1A
Which system is primarily responsible for detecting and responding to internal changes in the body?
Question 6
SL & HLPaper 1A
Shivering in cold weather helps maintain homeostasis by:
Question 7
SL & HLPaper 1A
Which system works with the nervous system to regulate body temperature during prolonged heat exposure?
Question 8
SL & HLPaper 1A
Which mechanism is primarily responsible for cooling a tennis player’s body during prolonged play in hot conditions?
Question 9
SL & HLPaper 1A
Which homeostatic mechanism explains why a sprinter’s heart rate decreases back to resting levels after the race?
Question 10
SL & HLPaper 1A
Which part of the body detects changes in core temperature during exercise?