specialized cells (biology)
cellular differentiation
process by which a cell becomes specialized to perform specific function
organism
refers to all plants and animals
cord blood
- blood found in umbilical cord (rich source of stem cells) -cells can develop into any of the various kinds of blood cells (like tissue stem cells) -collected blood can be stored incase it is needed later (only immediately after birth)
regeneration
-ability of a tissue to repair itself -skin, muscle, bone can regenerate after an injury -not all cells can regenerate
how are specialized cells formed from egg and sperm 4.
-at 3 months they turn into specialized cells formed into whats called a fetus -it is called a baby when it reaches 6 months
how are specialized cells formed from egg and sperm 3.
-between 0 to 3 months, fertilized egg is made up of unspecialized cells (lots of developments)
specialized cell
-cell that can perform a specific function -cell theory: every cell comes from a previously existing cell
how are specialized cells formed from egg and sperm 1.
-egg and sperm form a zygote (you), this is when the egg was just fertilized by sperm cell in fallopian tubes
how are specialized cells formed from egg and sperm 2.
-once fertilized egg reaches the uterus it is now called an embryo
balanced diet
-protein(growth/development), carbohydrates (energy), fat -meal plate: -largest is vegetables -medium sized is protein -smallest is carbs
stem cell (unspecialized cell)
-undifferentiated cell that can divide to form specialized cells -divides into two daughter cells (mitosis/cytokinesis) -each resulting daughter cell can develop in different type of cell
example
1. muscle cell 2. muscle tissue 3. heart 4. circulatory system = organism
tissue stem cells (exist within specialized tissue)
are only able to differentiate into certain types of cells
embryonic stem cells
cells that can differentiate into any kind of cell
tissue
collection of similar cells that perform a particular, but limited function
organ
structure composed of different tissues working together to perform a complex body function -each organ system is made up of highly specialized organs and other structures that work together to perform overall function of system
organ system
system of of one or more organs and structures that work together to perform a major vital body function