1. Cell Form & Function

2. Cells have different shapes to do different jobs. A cell’s form (shape) is adapted to its function. What does this mean???? It means:

3. Let’s look at some cells in our bodies…. form How would you describe their form, or shape? Red Blood Cells function What is their function? Form Form: small, round, squishy, flexible Function: Carry oxygen to body’s cells

4. FormFunction Form and Function: Being round & squishy allows them to squeeze through the tiniest blood vessels (capillaries) Red Blood Cells VideoVideo #1Video #2 form function How is their form (shape) connected to their function?

5. form How would you describe their form, or shape? Muscle Cells function What is their function? Form Form: long, narrow, stretchy Function: Function: to move the bones in your body

6. Muscle Cells FormFunction Form and Function: the stripes are stretchy fibers that tighten & relax, making your muscles tighten & relax Hold your bicep and bend & straighten your arm. Feel the bicep & triceps muscles (front & back of upper arm) tighten & relax as you do so. form function How is their form (shape) connected to their function?

7. form How would you describe their form, or shape? Nerve Cells function What is their function? Form Form: round center with many branches coming off it Function: Function: to send electrical signals throughout the body

8. Nerve Cells FormFunction Form and Function: the many branches (dendrites) allow each nerve cell to connect with many other nerve cells, reaching every part of your body. form function How is their form (shape) connected to their function?

9. form How would you describe their form, or shape? Bone Cells function What is their function? Form Form: round with branches, lots of space between them. Function: Function: to provide structure, allow movement

10. form function How is their form (shape) connected to their function? Bone Cells FormFunction Form and Function: the spaces between the cells fill with calcium, making bones strong enough to hold a person up

11. form How would you describe their form, or shape? Skin Cells function What is their function? Form Form: round, thin, flexible Function: Function: to cover the outside of your body, and line the inside of your organs

12. Skin Cells FormFunction Form and Function: Because they’re thin & flexible, skin cells form layers easily, creating layers of protection for your body & organs form function How is their form (shape) connected to their function?

13. Muscle Cell Red Blood Cell White Blood Cell Bone Cell Skin Cell Nerve Cell Different kinds of animal cells