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chapter 5!

bold words in chapter 5

QuestionAnswer
what are the basic units of structure and function in living things? cells
what forms the basic framework in which biologists have tried to understand living things? the cell theory
what does the cell theory state? 1)all living things are composed of cells. 2)cells are the basic units of structure and function in living things. 3)all cells come from preexisting cells.
what are the three basic structures in cells? 1)cell membrane 2)nucleus 3)cytoplasm
what regulates what enters and leaves the cell and also aids in the protection and support of the cell? cell membrane
what lies outside the cell membrane? cell wall
what are organisms whose cells lack nuclei? Prokaryotes
what are organisms whose cells contain nuclei? Eukaryotes
surrounding the nucleus are two membranes that form, what? the nuclear envelope
a small region where ribosomes are made nucleolus
what is the large structure called that forms when the DNA in the nucleus of eukaryotic cells is attached to special proteins? chromosomes
what is the area between the nucleus and the cell membrane? cytoplasm
what is a tiny structure that performs a specialized function in the cell? organelles
what are the key organelles that change energy for one form to another? mitochondria & chloroplast
what are the structures in which proteins are made? ribosomes
a complex network of sacs that transport materials through the inside of the cell? endoplasmic reticulum
look like a flattened sack of membranes piled one upon the other Golgi apparatus
small membrane-bordered structures that contain chemicals and enzymes necessary for digesting certain materials in the cell lysosomes
saclike structures what store materials such as water, salts, proteins, and carbohydrates vacuoles
plant organelles that may take many forms one of which is the chloroplast plastids
composed of a variety of filaments and fibers that support cell structure and drive cell movement cytoskeleton
Created by: 100000659377098
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