B1.4 Flashcards
What are striated muscle cells adapted for?
Contracting and relaxing.
How do sperm cells move?
With a tail that whips back and forth.
What is the role of mitochondria in sperm cells?
They provide energy for the tail to move.
What is the function of the acrosome?
It helps the sperm cell break into the egg.
What do nerve cells do?
They carry messages throughout the body.
What are dendrites?
Short, branched parts of a nerve cell that receive signals.
What is the function of the axon?
It carries nerve impulses away from the cell body.
How do nerve cells send signals?
Using special chemicals.
How do muscle cells help animals move?
By contracting and relaxing to move bones.
What is the difference between striated and smooth muscle cells?
Striated muscle cells have stripes, smooth muscle cells don’t.
