1. Introduction to Cells Unit 4

2. PRE-WARM UP: Start a new Table of Contents – “Life Science – Biology” Write your homework – leave it to be stamped MAKE SURE YOUR PUT YOUR ENERGY PLAN PROPOSAL IN THE HOMEWORK BASKET!!!! On page 1 of your notebook, describe the difference between biotic & abiotic DateSession # ActivityPage # 2/121Biotic vs. Abiotic – What Does it Mean to be Alive?1 Introduction to Cells2 Photosynthesis & Cellular Respiration3

3. BIOLOGY BIO= Life OLOGY= study of BIOLOGY = Study of Life!

4. WARM UP: Surprise!! We are going outside for our warm-up!

5. Living vs. Nonliving TASK 1: Make a list of 5 living & 5 non-living things TASK 2: Make a list of characteristics you used to determine if something living

6. 4 Characteristics of Living Things:  Organized Structure  Grow and Develop  Respond to Environment  Reproduce

7. Quick Comprehension ! Whiteboards ready! Living (L) Non-living (N)

8. Living or Nonliving?

14. Let’s Start With Organized Structure… Organism- A living thing made up of AT LEAST one cell (most have many cells) Capable of growing and reproducing Wait a Minute!....What‘s a cell???

15. What is a cell? Cell - the smallest unit of any living thing ALL living things are made of cells. A cell or group of cells carry out ALL activities in a living thing’s body.

16. 2 Types of Organisms: One Cell or Many Cells? Unicellular Organisms made up of only ONE cell Examples: amoeba, bacteria Multicellular Organism made up of MANY cells Examples: plants, animals, humans

17. OK…The truth about cells: The reason cells are important to life is summarized in the Cell Theory : 1.Every living thing is made of one or more cells. 2.Cells carry out the functions needed to support life. 3.Cells can only come from other living cells.

18. Cell Theory: Example 1.Every living thing is made up of one or more cells. A polar bear is a multicellular organism. 2. Cells carry out the functions needed to support life. Every type of cell has a different function, for example fat cells provide extra energy as well as insulation. 400x 3. Cells come only from other living cells. Each polar bear cub began as a single cell. That single cell split into 2, those 2 split into 4 and so on…

19. Quick Comprehension ! Whiteboards Ready!

20. Quick Comprehension ! What Is Biology again?

21. Quick Comprehension ! What determines if something is living?

22. Quick Comprehension ! What’s an organism again?

23. Quick Comprehension ! Wait…what are organisms made up of?

24. Quick Comprehension ! What is this cell theory and why do I care?

25. Quick Comprehension ! What are the 2 types of organisms?

26. Well…There are also 2 Types of Cells EukaryoticProkaryotic

27. 2 Types of Cells Eukaryotic Cell HAS A NUCLEUS EXAMPLE: plant and animal cells (multicellular) Prokaryotic Cell NO NUCLEUS EXAMPLE: bacteria cells (unicellular) Nucleus

28. Quick Comprehension ! Whiteboards Ready! -Multicellular or Unicellular AND -Eukaryotic or prokaryotic “ME” & “UP”

29. Unicellular or multicellular? E. Coli Bacteria Cell Eukaryotic or prokaryotic?

30. Unicellular or multicellular? Staphylococcus aureus (Staph Bacteria) Eukaryotic or prokaryotic?

31. Unicellular or multicellular? Human Red Blood Cells Eukaryotic or prokaryotic?

32. Unicellular or multicellular? Fungi Cell Eukaryotic or prokaryotic?

33. Unicellular or multicellular? Human Cheek Cells Eukaryotic or prokaryotic?

34. Unicellular or multicellular Onion Root Cells Eukaryotic or prokaryotic

35. Unicellular or multicellular? Athlete’s Foot Fungus Eukaryotic or prokaryotic?

36. Unicellular or multicellular? Spiral Bacteria Eukaryotic or prokaryotic?

37. Unicellular or multicellular Leaf Cells Eukaryotic or prokaryotic?

38. Tie It Together…What Do All Cells Need? Ok, regardless if an organism is unicellular or multicellular – prokaryotic or eukaryotic…what do they all need to function???? ENERGY!!!!

39. Where Do They Get Their Energy? It Depends… Animal Cells – consume food and their cells create energy through the process of CELLULAR RESPIRATION Plant Cells – use the sunlight and their cells convert it into energy through the process of PHOTOSYNTHESIS

40. Photosynthesis – in Chloroplast Light + CO2 + water->Glucose + Oxygen Respiration – in Mitochondria Glucose +Oxygen->CO2 + water + ATP (Energy) ATP - Adenosine triphosphate, coenzyme used as an energy carrier in the cells of all known organisms What do you notice??! Photosynthesis vs. Cell Respiration

41. But How…? Read about the 2 processes for now, and next time we will see how each part of a cell has a specific job to do to make these processes possible! – Read the Photosynthesis & Cellular Respiration article & fill in the chart below it to help you understand how the 2 processes are related