Experiments
Here are experiments our science specialists have selected to support this IB* topic.
Heart Rate
Experiment #15 from Investigating Biology through Inquiry
In this Preliminary Activity, you will use a Heart Rate Monitor to determine a subject’s heart rate. After completing the Preliminary Activity, you will first use reference sources to find out more about the heart, the cardiovascular system, and heart rate before you choose to investigate a researchable question dealing with heart rate. Depending on sensor availability and your interest, you might decide to use another sensor, such as a Blood Pressure Sensor, in addition to a Heart Rate Monitor. Some topics to consider in your reference search are:
- heart
- heart rate
- cardiovascular system
- physical fitness
- maximum cardiac rate
- homeostasis
- sympathetic nervous system
- parasympathetic nervous system
- heart-rate recovery time
- fitness index
- baroreceptor reflex
- diving reflex
Homeostasis and Autonomic Reflexes
Experiment #6 from Human Physiology Experiments
- Observe pulse response to sudden squatting.
- Observe pulse response to sudden standing from a squatting position.
- Educational Standard
- International Baccalaureate (IB) 2025
- Subject
- Biology
- Theme
- C Interactions and interdependence
- Level of organization
- 3 Organisms
- Topic
- C3.1 Integration of body systems
- Section
- Standard level and higher level
* The IB Diploma Program is an official program of the International Baccalaureate Organization (IBO) which authorizes schools to offer it. The material available here has been developed independently of the IBO and is not endorsed by it.