RESPIRATORY SYSTEMPART IPICK UP A WORKSHEET + EXIT CARD

OCTOBER 31

AGENDA

● Activity● Notes● Worksheet● Exit card

WALL SIT CHALLENGE Who can hold the position for the longest period of time?

How do yourlegs feel?

Need for a respiratory system

By the end of this lesson, I will be able to

● Explain that all plants and animals require ________ during cellular respiration in order to release the ________ stored in food

● Explain that _______ _________ and ______ are the waste products of cellular respiration

● Explain that ventilation brings a continuous supply of ___ to the ______● Explain that gas exchange occurs in the ______ as well as in the _____

_____

Cellular Respiration

What happens during aerobic cellular respiration?

<Cellular Respiration/Aerobic Respiration>

glucose + oxygen →

energy + water + carbon dioxide

C6

H12

O6

+ 6 O2

→ ATP + 6 H

2O + 6 CO

2

What happens during aerobic cellular respiration?

How does a cell store the energy yielded during respiration?

It stores the energy in the bonds of ATP (adenosine triphosphate) via phosphorylation

Phosphorylation: the

addition of a phosphate

group to a molecule

How are adenosine triphosphate (ATP) molecules formed?

The ATP molecule is formed by adding a third* phosphate group to an ADP molecule

“Charging a rechargeable battery”

What are the products of cellular respiration?

<Cellular Respiration/Aerobic Respiration>

glucose + oxygen → energy + water + carbon dioxide

C6

H12

O6

+ 6 O2

→ ATP + 6 H2

O + 6 CO2

<Cellular Respiration/Aerobic Respiration>

glucose + oxygen → energy + water + carbon dioxide

C6

H12

O6

+ 6 O2

→ ATP + 6 H2

O + 6 CO2

Released to

the environment

as waste products

What happens to carbon dioxide and most of the water produced during cellular respiration?

We need O2

2 MAIN REQUIREMENTS FOR RESPIRATION

1. Large respiratory surface

● Area where gases are exchanged with

the environment

2. Moist environment

● Dissolved in water

Respiration: all of the processes involved in

bringing oxygen into the body, making it

available to each cell, and eliminating carbon

dioxide as waste

TRANSPORT

● Diffusion: occurs when a material moves from an area where there is more of it to an area where there is less of it○ Nutrients and oxygen diffuse from your

blood into your body’s cells● Active transport: needs energy from the cell to

occur (opposite of diffusion)

LAW OF DIFFUSION

1. DISTANCE

Shorter, more exchange

2. SURFACE AREA

Larger, more exchange

3. AMOUNT

More molecules, more exchange

DIFFUSION

Why do multicellular organisms have special respiratory organs such as lungs?

Why do multicellular organisms have special respiratory organs such as lungs?

because many of their cells do not come in contact with air or water and must have the oxygen brought to them.

How does it look like?

1. Ventilation/Breathing

2. External respiration

3. Internal respiration

4. Cellular respiration

4 Parts of Mammalian Respiration

● Ventilation = inspiration + expiration

● Inspiration the action of drawing oxygen-rich air

into the lungs

● Expiration the action of releasing waste air from

the lungs

1. Ventilation

● Exchange of O2

and CO2

between the inspired air

inside the lungs and the blood

2. External Respiration

● Exchange of O2

and CO2

between the inspired air

inside the blood and the tissue

3. Internal Respiration

AND CELLULAR RESPIRATION BEGINS...

● Series of energy-releasing chemical reactions

that take place within the cells

● Sole means of providing energy for all cellular

activities

4. Cellular Respiration

Where does gas exchange occur in mammals?

- In both the lungs and the body cells.

4 STEPS OF RESPIRATION

By the end of this section, I will be able to

● Explain that all plants and animals require oxygen during cellular respiration in order to release the energy stored in food

● Explain that carbon dioxide and water are the waste products of cellular respiration

● Explain that ventilation brings a continuous supply of air to the lungs● Explain that gas exchange occurs in the lungs as well as in the body

cells

● Explain that all plants and animals require oxygen during cellular respiration in order to release the energy stored in food

● Explain that carbon dioxide and water are the waste products of cellular respiration

● Explain that ventilation brings a continuous supply of air to the lungs● Explain that gas exchange occurs in the lungs as well as in the body

cells

+ Explain the 4 steps of respiration!

4 steps of Respiration

1. Ventilation/Breathing→ inspiration and expiration

2. External respiration→ gas exchange between air and blood

3. Internal respiration→ gas exchange between blood and cells of the surrounding tissue

4. Cellular respiration→ chemical reactions

1. Ventilation/Breathing→ inspiration and expiration

2. External respiration→ gas exchange between air and blood

3. Internal respiration→ gas exchange between blood and cells of the surrounding tissue

4. Cellular respiration→ chemical reactions

EXIT CARD:

Give me 3 names of structures on respiratory system

OR4 steps in respiration