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Details Title: Biology Description: Quizzes Test 1 Total Flash Cards: 27 Created: 02/15/2004 20:25:55	To study from this set of flash cards, or to create your own your own study flash cards, register HERE. If you are already a registered user, CLICK HERE.
Cards Term Proton Definition Positively charged; located in the atomic nucleus Term Neutron Definition Uncharged; located in the atomic nucleus Term Electron Definition Negatively charged; smallest of the 3 atomic particles Term Atom Definition The smallest particle of an element which retains the properties of that element. Term False Definition True or False: Electrons are located at fixed, stationary points at defined distances from the atomic nucleus. Term True Definition True or False: Each orbital can hold 1 or 2 electrons (2 maximum). Term Endoplasmic reticulum Definition Site of initial protein modifications. Term Ribosome Definition "Protein factories" Term Golgi body Definition Site of final protein modifications. Term Vesicle Definition Small lipid bilayer sac for transporting proteins. Term Microbody Definition Lysosomes, peroxisomes, and glyoxysomes. Term Mitochondria Definition Site of aerobic respiration. Term Chloroplast Definition Site of photosynthesis. Term Central vacuole Definition Large storage sac in plant cells. Term Cytoskeleton Definition Provides structural support for the cell. Term Lumen Definition The inside of any tubular organ or organelle. Term D All of the above Definition Plasma membranes incorporate which of the following? A transport proteins B adhesion proteins C recognition proteins D all of the above Term D All of the above Definition Vesicle formation occurs in which of the following? A membrane cycling B phagocytosis C endocytosis and exocytosis D all of the above Term True Definition True of False Active transport against a concentration gradient requires an input of energy. Term False Definition Desmosomes (adhering junctions) hold cells together and form a water-tight seal. Term B Centromere Definition During mitosis, the structure which holds the two sister chromatids together and attaches them to the spindle microtubles is the A centriole B centromere C spindle equator D nucleolus Term A Interphase Definition Which of the following is NOT a stage of mitosis? A interphase B prophase C metaphase D ananphase Term B Prophase Definition During which stage of mitosis does the nuclear envelope begin to break down? A interphase B prophase C metaphase D ananphase Term C Metaphase Definition During which stage of mitosis are the sister chromatids aligned along the spindle equator? A interphase B prophase C metaphase D ananphase Term D Anaphase Definition During which stage of mitosis do the sister chromatids begin to move apart? A interphase B prophase C metaphase D ananphase Term Telephase Definition During which stage of mitosis do the sister chromatids move further apart and two nuclei begin to reform? Term Proteins Definition Most cell membrane functions are carried out by ______________.