1. Cells

2. All organisms are composed of cells

4. Multicellular -organisms made up of many cells
Examples:
plants, insect, human

5. Unicellular- organisms composed of just a single (one) cell
Examples:
bacteria, amoeba, paramecium

13. Cell Functions
All cells have similar organelles (cell parts)

14. Nucleus- control center of the cell contains DNA materials
Ribosomes- carry out protein synthesis
Mitochondria-powerhouse of the cell
Vacuoles- storage
Cell Membrane-
surrounds and
protects

15. All cells perform similar functions
Examples:
Respiration- release energy
Break down wastes
Excretion- release substances

17. Cell Songs
Cell Parts
Organelles Song - YouTube

18. Diffusion- movement of molecules from a greater concentration to a lesser concentration
-cell do diffusion to get material into
and out of cell
Osmosis- diffusion of water

20. Multicellular Organisms
Contains specialized cells that perform specific functions
Examples:
Red blood cell- carries oxygen
Nerve cell- carries impulses

21. Cell specialization
All cell have similar functions and structures but multicellular cell specialize to become unique.
This allows different cells to perform different functions.

22. Stem cell animation

23. Cells specialize through cell division
Cell division is part of the cell cycle

25. Cell division is also a part of growth and development in cells
Growth of an organism involves an increase in cell numbers or cell size.

27. Multicelluar Organization
Levels of organization:
Cells
Tissue- group of cells working together
Organs- groups of tissue working together
Organ systems- group of organs working together
Examples of each level: Bone cell Bone tissue Femur (upper leg bone) Skeletal system

29. Plant cell vs. Animal Cell

30. Large

31. Structures only in Plants
Cell wall- gives support
Large vacuole- stores water
Chloroplast- where photosynthesis takes place