1. Cell
SB 1 a Explain the role of cell organelles for both prokaryotic and eukaryotic cells, including the cell membrane, in maintaining homeostasis and cell reproduction.

2. Cells Unit
Cell = the smallest unit that can carry on all the processes of life

3. Cell Diversity
- cells are limited in size by their surface area to volume ratio - at some point, a cell can’t take in enough energy quickly enough to live - organelles = cell components that perform specific functions for the cell - two types: eukaryotes and prokaryotes

4. Eukaryotes Prokaryotes
Cell Membrane
Cytoplasm
Ribosomes
Nucleus
Membrane-bound organelles
Largest
Single or Multi Celled
ex: plants, animals
Prokaryotes
Cell Membrane
Cytoplasm
Ribosomes
No Nucleus
No membrane-bound organelles
Smallest
Single Celled
ex: bacteria

6. Multicellular Organization
Cells Tissues Organs Organ Systems Organism
(smallest) (simple) (largest) (complex)

7. Parts of the Eukaryotic Cell

8. Cell Membrane Selectively Permeable = only certain things can enter / exit the cell

9. Cell Membrane

10. Cytoplasm
Contains the organelles of the cell Contains cytosol = a gelatin- like aqueous fluid which organelles are in

11. Cytoplasm

12. Centrioles Organelles found in animal cells.
They are used during cell reproduction.

13. Centrioles

14. Cytoskeleton
Intracellular matrix that supports cell shape and function.

15. Cytoskeleton

16. Nucleus
Stores the hereditary information in its DNA; controls the cell (brain of the cell)

17. Nucleus
Nucleus

18. Nucleolus
Site where ribosomes are made

19. Nucleus/Nucleolus

20. Ribosomes
Most numerous organelle; synthesize proteins

21. Ribosomes

22. Mitochondria
Sites of chemical reactions – supply energy to cell (powerhouse) More numerous in cells with high energy requirements

23. Mitochondria

24. Endoplasmic Reticulum (ER)
Functions as a highway along which molecules move from one part of the cell to another
Two types:
Rough ER (has ribosomes)
2) Smooth ER (no ribosomes)

25. Rough ER

26. Smooth ER

27. Rough and Smooth ER

28. The processing, packaging, and secreting organelle of the cell
Golgi Apparatus
The processing, packaging, and secreting organelle of the cell

29. Golgi Apparatus

30. Lysosomes
Organelles that contain enzymes that digest stuff Common in cells of animals, fungi, and protists, but rare in plant cells

31. Lysosomes

32. Microtubules
Contributes to the support, movement, and division of the cell

33. Microtubules

34. Whipping action propels cells and makes them move
Flagella
Whipping action propels cells and makes them move

35. Flagella

36. Cell Wall
Rigidity helps support and protect the plant cell

37. Cell Wall

38. Plant Cells with Cell Wall

39. Vacuole
Fluid filled organelle that stores enzymes, metabolic wastes, and water

40. Vacuole

41. Vacuole (in a plant cell)

42. Chloroplast
used to trap energy of sunlight during photosynthesis with chlorophyll and convert to energy

43. Chloroplast