Vocabulary
The smallest unit of life
cell
List the levels of organization from smallest to largest. (5)
Cell, Tissue, Organ, Organ System, Organism
Protects and supports body organs and provides a framework the muscles use to support movement. Made up of bones and joints
Skeletal System
directs the activity of a cell; it contains chromosomes with the DNA
Nucleus
Single celled organism
unicellular
tiny cell structures that carry out specific functions within the cell
organelle
Any living thing
Organism
Consists of skeletal muscles, tendons that connect muscles to bones, and ligaments that attach bones together to form joints
Muscular System
a gel-like material inside the cell ; it contains water and nutrients for the cell
cytoplasm
Organism made up of many cells
Multi- cellular organism
A green pigment found in the chloroplasts of plants, algae, and some bacteria
Chlorophyll
Tissues are organized into groups of tissues that work together to perform closely related functions
Organ
the network of nerve cells and fibers that transmits nerve impulses between parts of the body including the brain.
Nervous System
the powerhouse of the cell
mitochondria
Hairlike projections that extend from the plasma membrane and are used for locomotion
Cilia
unicellular organism that lacks a nucleus
Prokaryote
A group of organs that work together to perform a major function
Organ System
Transports oxygen, waste, nutrients, hormones, heat, etc... around the body
Circulatory System
storage areas for the plant cell
vacuole
A long, hairlike structure that grows out of a cell and enables the cell to move.
Flagellum
organism whose cells contain a nucleus
Eukaryote
A group of similar cells that perform a specific function
Tissue
system of organs involved in producing offspring
Reproductive System
separates the nucleus from the cytoplasm
Nuclear membrane
The motion of cytoplasm in a cell that results in a coordinated movement of the cell's contents.
Cytoplasmic Streaming