Cells to body systems (Chapter One)

18 terms by Chasitycrum 

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Cell

The smallest unit of life.

Cell wall

Rigid structure that surrounds protects and gives shape to plant cells.

Nucleus

The brain or control center of the cell

Chloroplast

Organelle found in plants that converts light energy into energy plants can use.

Cell membrane

Surrounds the cell

Cytoplasm

Jelly like and contains most of the cell's organelles

Tissue

Group of cells that work together to perform a specific function.

Organ

Group of tissues that work together to perform a specific function.

Organ system

Group of organs that work together to perform a specific function.

Microscopic

Too small to be seen without using a microscope

Organism

Living thing that maintains vital life processes

Circulatory System

The organ system- made up of the heart, blood vessels, and blood- that transports materials throughout the body.

Respiratory System

The organ system including the lungs, that exchanges oxygen and carbon dioxide between the body and the environment.

Skeletal System

The organ system, including the bones, that protects the body and gives it structure.

Muscular System

The organ system that includes the muscles and allows the body to move.

Nervous System

The organ system including the brain, spinal cord, and nerves- that senses your surroundings and controls your other organs.

Excretory System

The organ system, including the kidneys and bladder, that removes waste materials from the blood.

Digestive System

The organ system that turns food into nutrients that body cells need for energy, growth, and repair.

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