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15 Cards in this Set

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The basic unit of structure of all living things.
cell
Most living things are composed of many cells. These cells work together to carry out the life processes of that organism.
The functions that a living thing must carry out to stay alive and produce more of its own kind.
life processes
Digestion is one of the essential life processes.
Substances that are needed for an organism to live and grow.
nutrients
Proteins, carbohydrates, and fats are nutrients found in food.
Similar cells working together.
tissue
Muscle tissue contains cells that contract.
Different types of tissue working together to perform a certain function.
organ
The hear, skin, and lungs are organs of the human body.
Groups of organs working together.
organ system
The digestive system is an organ system that includes the stomach, small intestine, and large intestine.
A thin layer that surrounds all cells. It allows water and dissolved materials to pass into and out of the cell.
cell membrane
It controls all the cell's activities and is very important in cell reproduction.
nucleus
It is a large storage area filled with liquid that contains various substances.
vacuole
The jellylike substance that fills much of the cell; other cell structures are found here.
cytoplasm
The structure in which food making occurs. It contains the green-colored pigment chlorophyll.
chloroplast
The tough outer covering of a plant cell that gies it a rigid shape. It is made of cellulose.
cell wall
Things that must carry out life processes in order to survive, grow, and or carry out other life processes.
living things
Things that do not grow, reproduce, or carry out other life processes.
nonliving things


Plants take in carbon dioxide and release oxygen, while animals take in oxygen and release carbon dioxide. Release energy in food.
Give off wastes.
Animals and plants both react to their surroundings, grow and develop, and reproduce.
Diff: Plants make food; animals eat food.
similar life processes of plants and animals