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The Cell


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2.membrane-bound organelles that break down food molecules to produce energy-storing molecules
7.clear fluid in eukaryotic cells surround the nucleus and organelles
11.the largest membrane-bound organelle; it contains the cell's DNA and manages cell functions
12.internal membrane-bound structures in a cell
17.folded, complex system of membranes forming a type of transport system in the cytoplasm of eukaryotic cells
21.group of two or more tissues that perform an activity together
24.thin, solid protein fibers present in the cytoskeleton
26.embedded in the inner membrane of chloroplasts; this green pigment traps light energy
27.membrane sacs that receive, modify, repackage, and distribute proteins in the cell
29.long, threadlike projection from the plasma membrane that propels cells with a whiplike motion
30.firm, fairly inflexible structure outside the plasma membrane of plants, fungi, most bacteria, and some protists
31.building block of all organisms
32.network of microtubules and microfilaments to provide support for organelles
1.organelles that are the site of protein synthesis
3.an instrument that magnifies specimens by passing light through the object, then through two or more glass lenses
4.cell lacking a true nucleus or membrane-bound organelles
5.membrane-bound, fluid-filled space within the cytoplasm; temporarily stores food, enzymes, and wastes
6.all living things are made of cells; the cell is the basic unit of organization; all cells come from preexisting cells
8.group of cells tha function together to carry out an activity
9.long, tangled strands of DNA found in the interphase nucleus of eukaryotic cells
10.organism that carries out all its life processes within its single cell
13.group of organs that work together to perform a major life function
14.instrument that allows one to magnify, view, and photograph dead specimens by using a beam of electrons
15.serves as the boundary between the cell adn its external environment
16.cell having a true nucleus and membrane-bound internal organelles
18.thin, hollow protein fibers present in the cytoskeleton
19.membrane-bound organelles containing enzymes that digest particles in the cell
20.organisms made up of many cells that are highly specialized to perform specific functions
22.short, numerous, hairlike projections on a cell's surface; have a coordinated "beating" activity
23.chlorophyll-containing organelle found in green plants and some protists; sight of photosynthesis
25.region within the nucleus that produces ribosomes
28.plant organelles that store materials, including starch, lipids, and pigments

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