Cells & Systems

What are the 4 components of blood?

• White blood cells, Platelets, bone marrow, and oxygen
• Plasma, Platelets, yellow blood cells, and nutrients
• Plasma, White blood cells, red blood cells, and Platelets
• Platelets, Red blood cells, antigens, and Rh factor

1. What is the function of white blood cells?

• carries oxygen throughout the body
• forms together to heal wounds
• fights off infections and diseases

1. What is the function of red blood cells?

• carries oxygen throughout the body
• forms together to heal wounds
• fights off infections and diseases

Part of blood that is made mostly of water:

• plasma

• red blood cells

• platelets

• white blood cells

2. What makes up 44% of blood?

• red blood cells
• plasma
• white blood cells
• platelets

3. Nerve Function:

• signals travel to the brain

• signals travel to the spinal cord, to the brain

• signals travel to the brain back to the nerve

• signals travel to the spinal cord, to the brain, back to the spinal cord, to the nerve

4. What is the main function of tissue?

• provides structure and support
• protects the muscles and bones
• protects the bones and allows movement

5. What is the main function of muscles?

• provides structure and support
• protects the muscles and bones
• protects the bones and allows movement

6. What is the main function of bones?

• provides structure and support
• protects the muscles and bones
• protects the bones and allows movement

7. True or False: All living things are made up of cells.

• True
• False