1. Compare and contrast autotrophs and heterotrophs
Bell-ringer: 4 minutes
Compare and contrast autotrophs and heterotrophs

3. Feedback checks – parent letters
Detention warnings/reminders
Extra Opportunities Update

4. Frayer Model:
Decomposers: groups 1-2
Producers: groups 3-4

5. Vital components of the nutrient cycle
What are decomposers?
An organism, often a bacterium or fungus, that feeds on and breaks down dead plant or animal matter, thus making organic nutrients available to the ecosystem.
Vital components of the
nutrient cycle

6. Animals that find dead animals or plants and eat them
Scavengers 
Animals that find dead animals or plants and eat them
Help break down or reduce organic material into smaller pieces
Examples: Flies, Wasps , Cockroaches , Earthworms

7. Different kinds of decomposers
Organisms that break down dead or decaying organisms, and in doing so carry out the natural process of decomposition
Examples:
Fungi
Bacteria
Worms

8. Fungi Fungi ≠ Plants over 50,000 species of fungi E.g.: mushrooms,
mildew,
mold,
toadstools,
etc.
Penicillin and other antibiotics are made from fungi.

9. How decomposers decompose dead things?
1. A fungus releases enzymes on to the dead remains
2. The enzymes digest the dead matter and make it soluble
3. The soluble products are taken up by the fungus

10. Bacteria Prokaryotic (no nucleus)
recycle dead plants and animals by turning them into minerals and nutrients that plants can use
only see them with a microscope

11. Worms Hermaphroditic (have both male and female organs)
Earthworms eat dead plants and animals
Excrete wastes in the form of casts (rich in nutrients like nitrogen, phosphorus, and potash)
Loosen the soil

12. What would happen if decomposer's are removed from the ecosystem?

13. Producers Are-
Producers get their food and energy from the sun. (PLANTS)
They make their food through a process called photosynthesis.

14. What we do with our energy
Cellular Respiration
What we do with our energy

15. Overview Of Cellular Respiration
Cellular respiration is the process that releases energy by breaking down glucose (sugar) and other molecules in the presence of oxygen.
Occurs in the Mitochondria

16. Purpose of cellular respiration?
To release energy from food molecules and make ATP!
Why do we need ATP?
ATP is the energy molecule needed by our cells
Our cells use ATP to make all of the chemical reactions in our body run.

17. Not enough oxygen for aerobic respiration?aerobic respiration
Fermentation-releases energy from food molecules by producing ATP in the absence of oxygen. (Anaerobic = no oxygen)
Two types: alcoholic fermentation, lactic acid fermentation

18. Uses no oxygen Makes a little energy Uses oxygen Makes a lot of energy
Anaerobic vs aerobic
Uses no oxygen
Makes a little energy
Uses oxygen
Makes a lot of energy

19. Lactic acid vs alcoholic
No oxygen
Occurs in muscles
Pyruvates lactate
Occurs so muscles can continue making ATP
Get lactate build up in muscles
Causes soreness
No oxygen
Pyruvate  carbon dioxide & ethanol
Seen in yeast and fungus
Used to make beverages, food, makes dough rise

21. 3 options for energy:

22. Overall Cellular Respiration breaks down Glucose (C6H12O6).
It produces H2O and CO2
It produces 36 ATPs!

23. Comparing Photosynthesis & Cellular Respiration
Function
Energy capture
Energy Release
Location
Chloroplasts
Mitochondria
Reactants
Carbon dioxide and water
Glucose and oxygen
Products

24. Cycle – one reaction feeds the other
oxygen
Photosynthesis
glucose
Cycle – one reaction feeds the other
water
Carbon dioxide
Cellular Respiration

25. Test yourself Why are molecules in life broken down?
To produce ATP (energy)
Because life naturally needs to die
For meeting the characteristic of life, metabolism
Both a & c

26. describe the following animals as either a producer or decomposer.
Answer Key
Cherry tree
Mushroom
Tulip (flower)
Worm
Vulture
Grass
Magnolia tree or bush
Producer
Decomposer

27. Test Yourself
Label the players in respiration

28. What is the purpose/ result of cellular respiration?
Turn and talk: 
What is the purpose/ result of cellular respiration?
What if errors occur during the process?
How is cellular respiration … - related to the characteristics of life?
- connected to other life?

29. Debate 2
Discuss the pros and cons to support your personal opinion on the needs/costs of tree-cutting and deforestation.
What could be the results for the animals that rely on the plants for sources of food and oxygen?
Why do we need/use the trees? What are the gains from tree cutting?
Is the process fair, considering where it occurs? What do you think we could do?

30. Summary/ Feedback/ Questions
We need plants and fungi to recycle nutrients and compounds that we need (like oxygen and nitrogen!)
10-reasons-to-be-thankful-for- forests/