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6th Grade Science

TermDefinition
cell the basic unit of living things ; they carry out functions that serve to sustain life
cell membrane a lipid bi-layer that encloses a cell
cytoplasm the jelly-like material in a cell between the nucleus and the cell membrane
organelle a structure within a cell
DNA the genetic materials of cells
nucleus the organelle that contains a eukaryotic cell's DNA
eukaryote a cell that has a nucleus or an organism composed of cells that have a nucleus.
prokaryote a cell that does not have a nucleus or any other membrane covered organelles; also called bacteria
cell wall a rigid structure that surrounds the cell membrane and provides support; only found in plant cells
cytoskeleton a web of proteins that helps with cell support and movement
endoplasmic reticulum the organelle that produces lipids, breaks down toxic substances, and packages proteins for delivery out of the cell
mitochondria organelles that break down food molecules to make ATP(adenosine triphosphate energy)
chloroplast the organelle in which photosynthesis occurs; in plant cells only
golgi complex the organelle that modifies, packages, and transports materials out of the cell
vesicle a membrane-covered compartment
lysosome a vesicle that digests food particles, waste, and foreign invaders
vacuole a vesicle that holds water
tissue a group of similar cells that work together to perform a specific job
organ a combination of two or more tissues that work together to form a specific function in the body
organ system a group of organs that work together to form specific body functions
organism anything that can independently carry out life processes
structure the shape of a part of an organism and the material that part is made of
function the job a part of an organism does
ribosome the organelle that makes proteins
Created by: kaos07