SPECIALIZED CELLS Flashcards
● A cell that has a particular structure and performs a specific
function
● Each type has unique shape, size and features allowing it to do its job accurately
Specialized Cells
have a variety of specialized cells
Plant cells
● Round edges to TRAVEL in blood vessels easier
● No nucleus = more room to carry O2 and CO2.
Red Blood Cells
Long, skinny arms to SEND MESSAGES QUICKLY over
long distances
Nerve Cells
have CILIA – TINY HAIRS on inner ear cells that PICK UP VIBRATIONS in the air and SEND SIGNAL TO BRAIN.
Ear Cells
● Long, skinny cells that lengthen and shorten to
MOVE MUSCLES
Muscle Cells
● The head contains the genetic material for fertilisation.
● The acrosome in the head contains enzymes so that a sperm can penetrate an egg.
● The middle piece is packed with mitochondria to release energy needed to swim and fertilize the egg.
● The tail enables the sperm to swim.
● Sperm are the smallest cells in the body and millions of them are made
Sperm Cells
● These cells help keep dirt out of the lungs.
● The ORANGE GOBLET cells secrete mucus
● The hair-like extensions (called cilia) move the mucus along the trachea to REMOVE inhaled DUST AND DIRT.
Trachea Cillia
● Unspecialized cells that divide quickly and do not have a particular function yet
● Only _____ can differentiate into many cell types.
Stem Cells
● The blood found in an UMBILICAL CHORD immediately after the birth of a child is a rich source of stem cells.
● These stem cells can develop into various kinds of blood cells.
● The blood collected from the cord can be banked (or stored) in the event it is needed later in the child’s or a sibling’s life.
Cord Blood Cell Banking