1. Cells – what’s the big deal?

2. What is a cell? The cell is the smallest unit of life.
Cells are too small to see except under a microscope.
All living things are made up of cells.
Some living things consist of just one cell like bacteria.
Others, such as tiny pond plants and animals may contain several hundred.
Large organisms like the rhinoceros or a pine tree are made of millions and millions of cells.

3. What does ‘living’ mean?
Being alive/ living / having life all mean the same thing
A living thing is defined as something that has three properties:
Metabolism: able to take in energy (food, water, fuel...) and process it
Reproduction: able to reproduce themselves
Growth: able to grow
Using these three properties, is a rock alive? How about a tree? Complete the task on the next slide.

4. What is Alive?
List these words in your books and circle the living things
Wood
Tree
Grass
Ball
Dog
Earth
Muffin
Person
Book
Airplane
Apple
Apple tree
Goldfish
Bird
Rock

5. What is Alive?
List these words in your books and circle the living things
Apple
Apple tree
Goldfish
Bird
Rock
Wood
Tree
Grass
Ball
Dog
Earth
Muffin
Person
Book
Airplane
What do you think??

6. Many different types of cells
There are many different types of cells.
Each cells shape, structure, and contents allow it to do a specialized job and contribute to keeping the whole body alive.
For example, in humans we have muscle cells, blood cells, bone cells, nerve cells, and skin cells among many others.
However, the majority of cells have the same basic components (organelles).

7. Wake up!
Cell song:

8. Cell organelles Sooooo, the majority of cells have the same what?...
…the same basic components (organelles)
To learn about these organelles we are going to focus on Two main types of cells: plant cells & animal cells
Some organelles are found in both cell types while some are found only in plant cells
These special organelles are needed for the plant to carry out special functions needed by the plant

9. Animal and Plant Cells
Animal and plant cells

10. Main organelles (there are several more)
Found in both PLANT and ANIMAL cells:
Cell membrane
Cytoplasm
Nucleus
Found in only PLANT cells:
Chloroplast
Vacuole
Cell wall

11. Cell Membrane Cell membrane
One part found in all cells is the cell membrane. The cell membrane surrounds the cell and holds the cell together. It controls what chemicals can enter and leave the cell.

12. Nucleus
Nucleus
Another part found in all cells is the nucleus. The nucleus controls the cell. Inside the nucleus is DNA which contains genetic information.

13. Cytoplasm
Cytoplasm
All cells also contain cytoplasm. Cytoplasm is a jelly-like mixture of chemicals where most of the work of the cell takes place, including chemical reactions!

14. Parts of a Plant Cell Plant cell parts
Plant cells may contain some extra parts.

15. Chloroplasts (plant cells)
Chloroplasts are disc shaped containers that contain chlorophyll for photosynthesis.

16. Cell wall (plant cells)
The cell wall is a strong outer layer to support the cell and give it shape.

17. Vacuole Vacuole (plant cells)
The vacuole where the plant cell stores its sap- containing nutrients and water (the food that it has made)

18. In reality …. More complicated!
Most cells are much more complicated than this!

19. There’s more organelles???
There sure is!
Plant and animal cells also contain:
Ribosomes
Golgi apparatus
Mitochondria
Lysosomes
Smooth endoplasmic reticulum
Rough endoplasmic reticulum

20. Time to check your learning & note taking ability!

21. Question 1 ?
cytoplasm
cell wall
chloroplast
cell membrane

22. Question 1 ?
cytoplasm
cell wall
chloroplast
cell membrane

23. Question 2 ?
cell wall
cell membrane
sap vacuole
cytoplasm

24. Question 2 ?
cell wall
cell membrane
sap vacuole
cytoplasm

25. Question 3 ?
cytoplasm
sap vacuole
chloroplast
nucleus

26. Question 3 ?
cytoplasm
sap vacuole
chloroplast
nucleus

27. Question 4
cytoplasm
cell wall
chloroplast
cell membrane ?

28. Question 4
cytoplasm
cell wall
chloroplast
cell membrane ?

29. Question 5 ?
cytoplasm
sap vacuole
chloroplast
nucleus

30. Question 5 ?
cytoplasm
sap vacuole
chloroplast
nucleus

31. Question 6
cytoplasm
sap vacuole
chloroplast
nucleus ?

32. Question 6
cytoplasm
sap vacuole
chloroplast
nucleus ?

33. Question 7 Which structures are present in animal and plant cells?
Vacuole, nucleus and cell membrane
Nucleus, cell wall, cytoplasm
Nucleus, cell membrane, cytoplasm
Cell membrane, chloroplast, cell wall

34. Question 7 Which structures are present in animal and plant cells?
Vacuole, nucleus and cell membrane
Nucleus, cell wall, cytoplasm
Nucleus, cell membrane, cytoplasm
Cell membrane, chloroplast, cell wall

35. Question 8 Which structures are present only in plant cells?
Cell membrane, nucleus, cytoplasm
Cell wall, cell membrane, vacuole
Nucleus, chloroplast, cytoplasm
Chloroplast, cell wall, vacuole

36. Question 8 Which structures are present only in plant cells?
Cell membrane, nucleus, cytoplasm
Cell wall, cell membrane, vacuole
Nucleus, chloroplast, cytoplasm
Chloroplast, cell wall, vacuole

37. Question 9 What is the function of the chloroplast? Controls the cell
Stores water and mineral ions
Makes glucose by photosynthesis
Controls what enters and leaves the cell

38. Question 9 What is the function of the chloroplast? Controls the cell
Stores water and mineral ions
Makes glucose by photosynthesis
Controls what enters and leaves the cell

39. Question 10 What is the function of the cell membrane?
Supports and protects the cell
Controls the cell
Controls what enters and leaves the cell
Metabolic reactions occur here

40. Question 10 What is the function of the cell membrane?
Supports and protects the cell
Controls the cell
Controls what enters and leaves the cell
Metabolic reactions occur here

41. Question 11 What is the function of the cell wall?
Supports and protects the cell
Stores water and mineral ions
Controls the cell
Controls what enters and leaves the cell

42. Question 11 What is the function of the cell wall?
Supports and protects the cell
Stores water and mineral ions
Controls the cell
Controls what enters and leaves the cell

43. Question 12 What is the function of the cytoplasm?
Stores water and mineral ions
Chemical reactions occur here
Controls what enters and leaves the cell
Supports the cell

44. Question 12 What is the function of the cytoplasm?
Stores water and mineral ions
Chemical reactions occur here
Controls what enters and leaves the cell
Supports the cell

45. Question 13 What is the function of the sap vacuole?
Supports and protects the cell
Controls what enters and leaves the cell
Controls the cell
Stores water and mineral ions

46. Question 13 What is the function of the sap vacuole?
Supports and protects the cell
Controls what enters and leaves the cell
Controls the cell
Stores water and mineral ions

47. Question 14 What is the function of the nucleus?
Supports and protects the cell
Controls the cell
Controls what enters and leaves the cell
Metabolic reactions occur here

48. Question 14 What is the function of the nucleus?
Supports and protects the cell
Controls the cell
Controls what enters and leaves the cell
Metabolic reactions occur here

49. Independent tasks Cytoplasm I’m keeping it simple:
I’m challenging myself:
and complete the Inside A Cell worksheet (printed)

50. Specialised... Specialised Cells Q: What does specialised mean??
A: Something that is designed to do a particular job

51. Specialised... Specialised Cells Q: What is a specialised cell?
A: A cell that has a special shape and features that help it to do its job

52. Red blood cells Your Task
Stuck round the room are some information sheets about different specialised animal and plant cells…. Your job is to extract the important information from the sheets to fill in on your worksheets on your computer

53. Organelles - review  Nucleus Cytoplasm Cell Membrane Mitochondria
Function
Plant
Animal
Nucleus
Controls cell activity. Contains Chromosomes/DNA. 
Cytoplasm
Jelly like substance. Location of many chemical reactions.
Cell Membrane
Controls passage of substances into and out of the cell.
Mitochondria
Location of respiration. Energy released from glucose.
Ribosomes
Involved in Protein Synthesis (Translation)
Cellulose Cell Wall
Strengthens cell X
Vacuole
Cell Sap (Pushes cell contents out against the Cell Wall)
Chloroplasts
Absorbs sunlight energy for Photosynthesis.