Cell Functions
Which of the following is not made of cells? Rocks, Leaves, Skin, Muscle
Rocks
What do the skin cells around a cut do?
Reproduce and form a scab
What is the first thing a body does when you get cut?
blood clots
What is the smallest unit of life?
cells
How does the structure of blood cells relate to their function?
The round shape allows them to move quickly through vessels
Which type of cell clots the blood?
What is the purpose of a scab?
protects the wound while it heals
The body uses several types of _____ to heal a cut.
cells
What happens if the blood doesn't clot?
will bleed excessively
In what way does the structure of nerve cells relate to their function?
The branch-like structure allows communication across the body
Which type of cell fights infections?
white blood cells
Why should you never pick a scab?
It will make the healing have to start over and take longer
What do nerve cells do when you get hurt?
Signal the brain
How do pain signals help the body?
Nerves tells the brain to tell the body to start healing the cut
In what way does the structure of muscle cells relate to their function?
The proteins are packed together to make you strong and able to move
Which type of blood cell carries oxygen?
red blood cells
Over time, what happens to the scab?
It will fall off on its own revealing new skin
How does the body make sure the cut is not infected?
White blood cells
What is the function of cells in the human body? Cells form _____ and those form ______.
work together to form tissues and organs
In what way does the structure of skin cells relate to their function?
They are thickly stacked creating a barrier from the outside world
Cell division
Really deep cuts may leave a what under the scab?
scar
What does the immune system do immediately after the skin is cut?
inflammation from increased blood flow
What is inflammation?
The immune system/white blood cells work to fight infections, start the healing process; this makes the injury feel warm
In what way does the structure of bone cells relate to their function?
The holes allow the bones to weigh less