IB SEHS Core Topics No1 Revision 1.0 to 6.0 N17

Front

What is pulmonary ventilation?

Back

Inflow and outflow of air between the atmosphere and the lungs.

Front

Which are micronutrients?

Back

Fibre, vitamins, minerals.

Front

What is the relationship between skill, technique and ability?

Back

Skill = ability + technique.

Front

Which characteristic describes short-term memory?

Back

Information that is readily available for a short period.

Front

What is the centre of mass of a body?

Back

The point at which the mass and weight of a body/object are balanced in all directions.

Front

Define homeostasis.

Back

The maintenance of a stable internal environment in an organism.

Front

What is the role of enzymes in biological reactions?

Back

Enzymes act as catalysts to speed up chemical reactions without being consumed.

Front

Explain the concept of energy balance.

Back

Energy balance is the relationship between energy intake and energy expenditure.

Front

What is the function of the respiratory system?

Back

To facilitate the exchange of gases (oxygen and carbon dioxide) between the body and the environment.

Front

Define aerobic exercise.

Back

Physical activity that requires oxygen to fuel the body, typically sustained over a longer duration.