a long, whiplike structure that helps a cell to move
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phospholipid
a molecule that is a constituent of the bilayer of biological membranes, having a polar, hydrophilic head and a nonpolar, hydrophobic tail
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mitochondrion
a membrane‐bound organelle found in most eukaryotic cells; site of cellular respiration
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chloroplast
an organelle found in plant and algae cells where photosynthesis occurs
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ribosome
cytoplasmic organelles where proteins are synthesized
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Golgi body
a structure in a cell that receives proteins and other newly formed materials from the endoplasmic reticulum, packages them, and secretes them from the cell
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endoplasmic reticulum
a system of membranes that is found in a cell's cytoplasm and that assists in the production, processing, and transport of proteins and in the production of lipids
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cell wall
a rigid structure that surrounds the cell membrane and provides support to the cell; composed of cellulose in plants
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nucleus
a large organelle that contains the cell's genetic material in the form of DNA and controls many of the cell's activities
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nucleolus
a specialized structure in the nucleus; active in the synthesis of ribosomes
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cholesterol
a lipid that forms an essential component of cell membranes by improving the fluidity of the membrane
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glycoprotein
a protein with one or more carbohydrates covalently attached to it
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matrix
innermost fluid of the mitochondrion
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vesicle
small membrane-bound sac that functions in moving products into, out of, and within a cell
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lysosome
an organelle containing digestive enzymes
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granum
a stack of thylakoids in a chloroplast
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stroma
the fluid of the chloroplast surrounding the thylakoid discs
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thylakoid disc
a flattened membranous sac in a chloroplast
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cristae
series of folds in the inner membranes of mitochondria; where cell respiration occurs
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cilia
hairlike projections that extend from the plasma membrane and are used for locomotion
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cytoskeleton
a network of fibers that holds the cell together, helps the cell to keep its shape, and aids in movement
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vacuole
a sac inside a cell that acts as a storage area
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cytosol
fluid portion of cytoplasm
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microtubule
a hollow rod composed of proteins that makes up part of the cytoskeleton
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chromatin
granular material visible within the nucleus; consists of DNA tightly coiled around proteins
Studied by 42 people
