RESPIRATORY SYSTEM PART I

Transcription

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

2 AGENDA Activity Notes Worksheet Exit card

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

4 How do your legs feel?

5 Need for a respiratory system

6 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

7 Cellular Respiration

8 What happens during aerobic cellular respiration?

9 What happens during aerobic cellular respiration? <Cellular Respiration/ Aerobic Respiration> glucose + oxygen energy + water + carbon dioxide C6H12O6 + 6 O2 ATP + 6 H2O + 6 CO2

10 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

11 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

12 What are the products of cellular respiration? <Cellular Respiration/Aerobic Respiration> glucose + oxygen energy + water + carbon dioxide C6H12O6 + 6 O2 ATP + 6 H2O + 6 CO2

13 What happens to carbon dioxide and most of the water produced during cellular respiration? Released to the environment as waste products

14 We need O2

15 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

16 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)

17 LAW OF DIFFUSION 1. DISTANCE Shorter, more exchange 2. SURFACE AREA Larger, more exchange 3. AMOUNT More molecules, more exchange

18 DIFFUSION

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

20 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.

21 How does it look like?

22 4 Parts of Mammalian Respiration Ventilation/Breathing External respiration Internal respiration Cellular respiration

23 1. Ventilation Ventilation = inspiration + expiration Inspiration the action of drawing oxygen-rich air into the lungs Expiration the action of releasing waste air from the lungs

24 2. External Respiration Exchange of O2 and CO2 between the inspired air inside the lungs and the blood

25 3. Internal Respiration Exchange of O2 and CO2 between the inspired air inside the blood and the tissue

26 AND CELLULAR RESPIRATION BEGINS...

27 4. Cellular Respiration Series of energy-releasing chemical reactions that take place within the cells Sole means of providing energy for all cellular activities

28 Where does gas exchange occur in mammals? - In both the lungs and the body cells.

29 4 STEPS OF RESPIRATION

30 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 the 4 steps of respiration!

31 steps of Respiration Ventilation/Breathing inspiration and expiration External respiration gas exchange between air and blood Internal respiration gas exchange between blood and cells of the surrounding tissue Cellular respiration chemical reactions

32 EXIT CARD: Give me 3 names of structures on respiratory system OR 4 steps in respiration