1.1 Up or down?

As Ebony’s muscle cells respire their glucose supply goes…

Let’s play………Up or Down!

1.1 Up or down?As Ebony’s muscle cells respire their glucose supply goes… DOWN

1.1 Up or down?As Ebony’s muscle cells respire their water content goes…

1.1 Up or down?As Ebony’s muscle cells respire their water content goes… UP

1.1 Up or down?As blood flows past her muscle cells its oxygen content goes…

1.1 Up or down?As blood flows past her muscle cells its oxygen content goes… DOWN

1.1 Up or down?As blood passes her respiring cells its carbon dioxide levels go…

1.1 Up or down?As blood passes her respiring cells its carbon dioxide levels go… UP

1.1 Up or down?As Ebony picks up her speed her energy use goes…

Lesson #7: Breathing

Objective:Explain the difference between breathing and respiring

The breathing system is used by the body to get the oxygen needed for respiration.

It is also use to get rid of the waste product of respiration, the gas carbon dioxide.

What is breathing?

Breathing in is also known as inhalation. When you inhale you breathe in air, including oxygen, into your lungs. Breathing out is also known as exhalation. When you exhale you breathe out the contents of our lungs and getting rid of the waste gas carbon dioxide.

Inhalation

InvestigationWe are going to investigate how exercise effects breathing rate1. Holding on the side of the stairs, climb up and down one the same

stair for 1 minute. Count the number of breathes in 1 minute, recording how many breathes at 30 seconds and 1 minute.

2. Climb up and down the stairs for 2 minutes and then record number of breathes for 1 minute again.

3. Climb up and down the stairs for 3 minutes and record your breathes

4. Climb up and down the stairs for 4 minutes and record your breathe.

5. Graph your data for homework.

Please copy the table into your notebooks, when you finish your experiment, graph the results

Exercise time (minutes) Breaths in 30 s Breaths per minute

0    

1    

2    

3    

4