Chapter 3 Cells The Basic Units of Life
Chapter 3 Cells: The Basic Units of Life
A group of similar cells that work together to perform a specific job in the body Click for Term
Tissue A group of similar cells that work together to perform a specific job in the body Click for Term
A combination of two or more tissues that work together to perform a specific function in the body Click for Term
Organ A combination of two or more tissues that work together to perform a specific function in the body Click for Term
A group of organs working together to perform body functions Click for Term
Organ system A group of organs working together to perform body functions Click for Term
Anything that can independently carry out life processes Click for Term
Organism Anything that can independently carry out life processes Click for Term
Made of a single cell Click for Term
Unicellular Made of a single cell Click for Term
Made of many cells Click for Term
Multicellular Made of many cells Click for Term
A group of individuals of the same species that live together in the same area at the same time Click for Term
Population A group of individuals of the same species that live together in the same area at the same time Click for Term
All of the populations of different species that live and interact in an area Click for Term
Community All of the populations of different species that live and interact in an area Click for Term
A community of organisms and their nonliving environment Click for Term
Ecosystem A community of organisms and their nonliving environment Click for Term
A phospholipid layer covers a cell’s surface and acts as a barrier between the inside of a cell and the cell’s environment Click for Term
Cell membrane A phospholipid layer covers a cell’s surface and acts as a barrier between the inside of a cell and the cell’s environment Click for Term
Structures within a cell, sometimes surrounded by a membrane Click for Term
Organelles Structures within a cell, sometimes surrounded by a membrane Click for Term
Cellular fluid surrounding a cell’s organelles Click for Term
Cytoplasm Cellular fluid surrounding a cell’s organelles Click for Term
Membrane-covered organelle found in eukaryotic cells that contains a cell’s DNA and serves as a control center for the cell Click for Term
Nucleus Membrane-covered organelle found in eukaryotic cells that contains a cell’s DNA and serves as a control center for the cell Click for Term
Describes a cell that does not have a nucleus or any other membrane-covered organelles; also called bacteria Click for Term
Prokaryotic Describes a cell that does not have a nucleus or any other membranecovered organelles; also called bacteria Click for Term
Describes a cell that has a nucleus Click for Term
Eukaryotic Describes a cell that has a nucleus Click for Term
Extremely small single-celled organisms without a nucleus; prokaryotic cells Click for Term
Bacteria Extremely small single-celled organisms without a nucleus; prokaryotic cells Click for Term
A structure that surrounds the cell membrane of some cells and provides strength and support to the cell membrane Click for Term
Cell wall A structure that surrounds the cell membrane of some cells and provides strength and support to the cell membrane Click for Term
A small organelle in cells where proteins are made from amino acids Click for Term
Ribosome A small organelle in cells where proteins are made from amino acids Click for Term
A membrane-covered cell organelle that produces lipids, breaks down drugs and other substances and packages proteins for delivery out of the cell Click for Term
Endoplasmic reticulum (ER) A membrane-covered cell organelle that produces lipids, breaks down drugs and other substances and packages proteins for delivery out of the cell Click for Term
Cell organelles surrounded by two membranes that break down food molecules to make ATP Click for Term
Mitochondria Cell organelles surrounded by two membranes that break down food molecules to make ATP Click for Term
An organelle found in plant and algae cells where photosynthesis occurs Click for Term
Chloroplast An organelle found in plant and algae cells where photosynthesis occurs Click for Term
The cell organelle that modifies, packages, and transports materials out of the cell Click for Term
Golgi complex The cell organelle that modifies, packages, and transports materials out of the cell Click for Term
A membrane-covered compartment in a eukaryotic cell that forms when part of the cell membrane surrounds an object and pinches off Click for Term
Vesicle A membrane-covered compartment in a eukaryotic cell that forms when part of the cell membrane surrounds an object and pinches off Click for Term
A large membrane-covered structure found in plant cells that serve as storage containers for water and other liquids Click for Term
Vacuole A large membrane-covered structure found in plant cells that serve as storage containers for water and other liquids Click for Term
A special vesicle in cells that digests food particles, wastes and foreign invaders Click for Term
Lysosome A special vesicle in cells that digests food particles, wastes and foreign invaders Click for Term
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