Cells, tissues, and homeostasis Flashcards
What is the order of the biological hierarchy?
Specialized cells, tissues, organs, organ systems, organisms
How do stem cells become specialized cells?
They go through differentiation
What is differentiation?
The process where cells develop in different ways to do certain functions
What are embryonic stem cells?
Cells that undergo differentiation to become any type of cell
What are adult stem cells?
After cells specialized they become adult stem cells and can only be certain types of cells
Where are meristemic cells found? (Plant cells only)
Found growing in the tip of the root and stems
What is regeneration?
The process where a body part is replaced or regrown
What is epithelial tissue? What is the function of this tissue?
Made of cells that are tightly packed together in order to form a protective layer
Functions:
Protects structures
Forms glands that produce hormones, enzymes, and sweat
What are the types of connective tissues and what do they do? What are the functions of these tissues?
Types of connective tissue: Tendons, ligaments, bones, cartilage, and blood Job: joins other tissues together Functions: Supports and protects structures Forms blood and stores fat Fills empty spaces
What is the nervous tissue made of? What is its function?
Made of nerve cells that receive information from inside and outside our bodies to create messages called impulses
Function:
Responds to stimuli and transmits information
What are the types of muscle tissue? What’s the function of muscle tissue?
Skeletal, smooth, and cardiac muscle.
Function: allows for movement
What is homeostasis?
When the physical and chemical properties are working efficiently
