Cells

25 terms by clmiller76 

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tissue

a group of similar cells that work together to perform a specific job in the body

organ

a combination of two or more tissues that work together to perform a specific function in the body

organ system

a group of organs working together to perform body functions

organism

anything that an independently carry out life processes

unicellular

made of a single cell

multicellular

made of many cells

population

a group of individuals of the same species that live together in the same area at the same time

community

all of the populations of different species that live and interact in an area

ecosystem

a community of organisms and their nonliving environment

cell membrane

a phospholipid layer that covers a cell's surface and acts as a barrier between the inside of a cell and the cell's environment

organelles

structures within a cell, sometimes surrounded by a membrane

cytoplasm

cellular fluid surrounding a cell's organelles

nucleus

membrane-covered organelle found in eukaryotic cells that contains a cell's DNA and serves as a control center for the cell

prokaryotic

describes a cell that does not have a nucleus or any other membrane-covered organelles; also called bacteria

eukaryotic

describes a cell that has a nucleus

bacteria

extremely small single-celled organisms without a nucleus; prokaryotic cells

cell wall

a structure that surrounds the cell membrane of some cells and provides strength and support to the cell membrane

ribosome

a small organelle in cells where proteins are made from amino acids

endoplasmic reticulum

a membrane-covered cell organelle that produces lipids, breaks down drugs and other substances, and packages proteins for delivery out of the cell

mitochondria

cell organelles surrounded by two membranes that break down food molecules to make ATP

chloroplast

an organelle found in plant and algae cells where photosynthesis occurs

Golgi complex

the cell organelle that modifies, packages, and transports materials out of the cell

vesicle

a membrane-covered compartment in a eukaryotic cell that forms when part of the cell membrane surrounds an object and pinches off

vacuole

a large membrane-covered structure found in plant cells that serve as storage containers for water and other liquids

lysosome

a special vesicle in cells that digests food particles, wastes, and foreign invaders

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