Cell Facts
which organelle makes the cells energy? (powerhouse of the cell)
Do we have more bacteria on our skin or in our cells?
our skin
This type of cell transmits electrical signals throughout your body.
nerve cell or neuron
These cells carry oxygen to all parts of the body.
red blood cells
which cell sends signals from the brain to the body or from the body to the brain?
neuron
which organelle packages and ships proteins for the cell?
Golgi Apparatus
This organelle has its own DNA, passed down from your mom.
mitocondrion
The long extension of a neuron that sends signals is called this.
axon
The red blood cell is missing this major organelle — that most cells have.
nucleus
which cell transports oxygen?
red blood cell
This jelly-like substance fills the cell and holds organelles in place.
Cytoplasm
This is the largest organelle in most animal cells and holds DNA.
nucleus
These branch-like parts of a neuron receive messages from other cells.
dendrites
Red blood cells are red because they contain this protein.
hemoglobin
Do mitochondria have their own DNA?
yes, passed down from mother
What do ribosomes do?
make proteins
The cytoskeleton helps the cell do what?
change shape or move materials around inside
The fatty coating that insulates axons and speeds up signal transmission.
myelin sheath
why is the red blood cell shaped as a disc?
it increases surfacearea that can collect oxygen
what is the function of the membrane of the cell?
to act as a barrier and determine what goes in and out of the cell.
This organelle is like the cell’s garbage disposal — it breaks down waste and old parts.
Lysosome
These organelles are like tiny factories that build proteins from RNA instructions.
ribosomes
Neurons can send signals up to this fast — about the same as a sports car.
a. 170mph
b. 250mph
c. 500mph
d. 150mph
B. 250mph
Fun Fact: A single drop of blood can contain this many red blood cells.
a. 100,000
b. 3.6 million
c. 5 million
d. 7 billion
c. 5 million
name any 3 organelles and their function
?