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Biology chapter 7: A view of a cell

State 3 parts of the Cell Theory

1. All living things are composed of one or more cells. 2. The cell is the basic unit of organization of organisms 3. All cell come from pre-existing cells


are much simpler and usually smaller cells. Don't have a nucleus


have a nucleus and are members of the protist, fungi, plant and animal kingdoms


members of the kingdom monera

Kingdom Monera

made up of blue-green algae and bacteria

how does the plasma membrane maintain homeostasis?

Allows some molecules to pass through and keep others out

What is selective permeability?

a differentially-permeable membrane

Cell Wall

a second membrane for a plant cell only


region within the nucleus, it produces ribosomes


contains cell DNA


make protein for the cell


gel-like material inside the cell that contains water and nutrients

Endoplasmic Reticulum

moves materials around in the cell

Golgi Apparatus

used for packing and secreting


storage areas for the cell


chemicals used to digest waste


contains chlorophyll that makes food for plant cell


break down food and release energy to the cell


provides support for organelle and is important in cell locomotion

Cilia and Flagella

composed of molecules

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