Life Science- Cells

Front 1

Cell Membrane

Back 1

the protective layer around the cell, which controls what happens between cell and its environment

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cell wall

Back 2

a touch, rigid outer covering that protects the cell and gives it shape

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chloroplast

Back 3

a green organelle that makes food in plants cells

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cytoplasm

Back 4

gelatinlike material insides every cell where hereditary material that is contained

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endoplasmic reticulum

Back 5

a series of folded membranes in which materials can be processed and moved around inside the cell

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Golgi bodies

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organelles that sort proteins and other cellular materials and put into structures called vesicles

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mitochondria

Back 7

organelles that release energy by breaking down food into carbon dioxide and water

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nucleus

Back 8

directs all cell activites

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organ

Back 9

a structure made up of two or more different types of tissues that work together

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organelle

Back 10

a structure within a eukaryotic cell; some process energy and others make substances needed by the cell or other cells

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ribosome

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a samll structure where a cell makes its own protein

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tissue

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a group of similar cells that work together to do one job

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active transport

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takes place when energy is needed through a cell membrane; uses transport protein

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diffusion

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random movement of molecules from an area where there are more of them into an area where there are fewer of them

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endocytosis

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process of taking substance into a cell by surronding them with the cell's membrane

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equilibrium

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the number of molecules in two area that are the same

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exoctosis

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process in which the contents of a vesicle are moved outside a cell

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osmosis

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the diffusion of water through the cell mambrane

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passive transport

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movement of substances through the cell mambrane without using energy

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amino acid

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one of the small units that make up protein molecule

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carbohydrate

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a molecule made up of carbon, hydrogen, and oxygen atoms; nutrient that is the main source of energy for the body

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fat

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necessary nutrient that provides the body with energy and helps it absorb vitamins; also known as a liquid

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food group

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foods that have the same type of nutrient

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mineral

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inorganic nutrient that takes part in many chemical reactions in the body

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nutrient

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substance in food that provide energy and materials for cells to develop, grow, and repair themselves

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protein

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large molecules that contain carbon, hydrogen, oxygen, nitrogen, and sometimes sulfur; one of the six kinds of nutrients

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vitamin

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nutrients that is needed in small amounts to help the body grow, to regulate body functions, and to prevent some diseases