RESPIRATORY SYSTEM PART I PICK UP A WORKSHEET + EXIT CARD OCTOBER 31
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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
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