1. Cell Differentiation

2. Cell Differentiation What is it?
It’s when cells turn off & turn on certain genes to produce the necessary proteins it needs to do a specific job, therefore, cells differentiate or specialize into different types of cells.

3. All these different types of cells can be grown from stem cells.

5. (Osteocyte)

6. Why do cells have different shapes, sizes, and internal structures?
They perform different functions or jobs.

7. organelle

8. Levels of Organization
organelle→ cell → tissues→ organ → organ systems→ organism
smallest
largest
Comparing component parts with the larger system they are a part of:
(1) bone cells (osteoblasts) → connective (bone) tissue → bones → skeletal
system → vertebrate
(2) nerve cells (neurons) → nerve tissue → brain → central nervous system
→ vertebrate (human)
(3) cardiac cells (heart cells) → cardiac tissue → heart → cardiovascular system
→ vertebrate (human)

10. The Cell Theory All living things are made of one or more cells.
2. Cells are the basic units of
structure & function in
organisms.
3. All cells arise from existing
cells.