Exercise and the Human Body

The scene lets students explore a gym where two athletes are exercising. Users will observe and analyse the effort needed by both types of exercises and how they affect muscle contraction. By monitoring the heart rate monitor and spirometer, observe the effect intensity of exercise has on heart rate, breathing rate and energy needed for the activity. The model of the cell will illustrate how oxygen and glucose is used to release energy, which student will link to exercise.

# Learning objectives

1: Be able to describe that cells need energy to carry out their function{.info}

2: Be able to describe that exercise increases breathing and heart rate{.info}

3: Be able to describe respiration as the process that releases energy{.info}

# Releasing Energy{.objective .objective1}

In this section, a description of Aerobic Respiration will be provided. All living cells will need energy to carryout their function, for example, muscles use energy to contract. During exercise, muscles are used frequently to generate specific movement. Energy is released from glucose when it reacts with oxygen, and that process can be represented by a chemical equation.

# Transporting Nutrients {.objective .objective2}

In this section, the transport of glucose and oxygen will be described. Both nutrients are dissolved and transported within the blood. As blood flows it delivers these nutrients to all respiring cells, such as contracting muscles. The demand for oxygen and glucose will change depending on activity, like exercise. The more frequently muscles contract, the more energy they need. As such, more glucose and oxygen need to be delivered to release energy fast enough for muscles to continue contracting.

# Coming Home{.objective .objective3}

In this section, the reliance of breathing to get oxygen into the blood stream will be described. During exercise, the oxygen demand increases, so we respond by breathing deeper and more frequently. This facilitates a faster absorption of oxygen into the blood stream as well as removal of the built up carbon dioxide. A description will be outlined that if the oxygen demand isn’t met fast enough, Respiration won’t happen fully, and lactic acid will build up. This is known as Anaerobic respiration.

# Teacher Resources

### Download Teacher Notes

[](https://data.avncloud.com/activities/792021/files/Exercise%20and+the+Human+Body+Teacher+Notes+Only.pdf?date=1676023149&size=834707&md5=e65fd9c20124bdacf616b3471c339b0f)

### Student Quiz Answers Document

[](https://data.avncloud.com/activities/792022/files/Exercise%20and+the+Human+Body+Quiz+Answers.pdf?date=1676023202&size=449075&md5=e47e46009456cbb50000c1c023b2c9b0)

### Download Student Quiz Document

[](https://data.avncloud.com/activities/792023/files/Exercise%20and+the+Human+Body+Quiz+Only.pdf?date=1676023275&size=95962&md5=3e5eb023b802451a963259c96b0eee49)