Chapter 1 Flashcards
(15 cards)
Membrane composed of phospholipid and protein molecules; gives form to cell and controls passage of materials in and out of cell.
Plasma membrane
Jelly like substance between cell membrane and nucleolus in which organelles are suspended;
Serves as matrix substance where chemical reactions occur
Cytoplasm
System of interconnected membrane forming canals and tubules;
Smooth ER metabolizes no polar compounds and stores Ca in striated muscle cells
Rough ER assists in protein synthesis
Endoplasmic reticulum
Granular particles composed of protein and RNA;
Synthesizes proteins
Ribosomes
Cluster of flattened, membranous sacs;
Synthesizes carbs and packages molecules for secretion, secretes lipids and glycoproteins
Golgi apparatus
Double walled membranous sacs with folded inner partitions;
Releases energy from food molecules and transforms energy into usable ATP
Mitochondria
Single walled membranous sacs;
Digests foreign molecules and worn and damaged cells
Lysosomes
Spherical membranous vesicles;
Contains enzymes that produce hydrogen peroxide and uses this for various oxidation reactions
Peroxisomes
Nonmembranous mass of two rodlike centrioles;
Helps organize spindle fibers and distribute chromosomes during mitosis
Centrosome
Membranous sacs;
Stores and excretes various substances within the cytoplasm
Vacuoles
Thin, hollow tubes;
Support cytoplasm and transport materials within the cytoplasm
Fibrils and micro tubules
Minute cytoplasmic extensions from the cell;
Moves particles along surface of the cell or moves cell
Cilia and flagella
Membrane surrounding the nucleus composed of protein and lipid molecules;
Supports nucleus and controls passage of materials between nucleus and cytoplasm
Nuclear membrane
Dense, no membranous mass composed of protein and lipid molecules;
Forms ribosomes
Nucleolus
Fibrous strands composed of protein and Dna molecules;
Controls cellular activity for carrying on life processes
Chromatin
