Organizational levels Flashcards
what is the order of the organizational levels from the most simple to the most complex
cell, tissues, organ, organ system, organism
what is a cell
basic, independently functional unit of life composed of molecules and organelles
what is an organelle
functional units within a cell
what is an organelle
functional units within a cell
semipermeable membrane
surrounds the cell and allows certain molecules to pass through
what are tissues
composed of 2 or more types of cells working together to perform a function
what are the 4 types of tissues
epithelial, connective, muscular, nervous
what is the function of the epithelial tissue
a sheet of cells that protect/cover exterior surfaces of body, lines internal cavities/passageways and forms certain glands
where is the location of the epithelial tissue
coverings such as skin
what is the function of the connective tissue
binds the cells and organs together and helps protect, support, and the integration of the body
where is the connective tissue located
bones, cartilage, tendons, and blood vessels
what is the function of the muscular tissues
contracts to provide movement
where are muscular tissues found
heart, skeletal muscles, and muscles of other organs
what is the function of nervous tissues
transmits electrical signals (nerve impulses) that communicate between different parts of the body
where is the nervous tissues located
brain, spinal cord, and nerves
