Transcription of NAME LAB TIME/DATE REVIEW SHEET The Cell: …
1 REVIEW SHEET exercise4 The Cell: anatomy and DivisionReview SHEET 4127 anatomy of the Composite the following:organelle: cells have differences that reflect their specific functions in the body, what functions do they have in common? the following cell parts:1. external boundary of cell; regulates flow of materials into and out of the cell; site ofcell signaling2. contains digestive enzymes of many varieties; suicide sac of the cell3. scattered throughout the cell; major site of ATP synthesis4. slender extensions of the plasma membrane that increase its surface area5. stored glycogen granules, crystals, pigments, and so on6. membranous system consisting of flattened sacs and vesicles; packages proteins forexport7. control center of the cell; necessary for cell division and cell life8. two rod-shaped bodies near the nucleus; direct formation of the mitotic spindle9.
2 Dense, darkly staining nuclear body; packaging site for ribosomes10. contractile elements of the system; involved in intracellular transport of proteins and synthesis ofmembrane lipids12. attached to membrane systems or scattered in the cytoplasm; synthesize proteins13. threadlike structures in the nucleus; contain genetic material (DNA)14. site of free radical detoxificationNAME _____LAB TIME/DATE _____Highly organized intracellular structure that performs a specific (metabolic) function(s) for the basic structural and functional unit of living to metabolize, to reproduce, to grow (increase in mass), to respond to a stimulus, and membranelysosomemitochondriamicrovilliin clusionsGolgi apparatusnucleuscentriolesnucleolusmicro filamentsrough ERribosomeschromatin threadsperoxisomeighapmLre04pg127_130 5/12/04 12:44 PM Page 127 impos03 302:bjighapmL:ighapmLrevshts.
3 The following diagram, label all parts provided with a leader and Similarities in Cell Structure each of the following cell types, list (a) oneimportant structural characteristic observed in the laboratory, and (b) thefunction that the structure complements or epithelium SHEET 4cells fit closely together like floor tilesoften a lining or covering tissuehas a tail or flagellumallows sperm to propel itself to an eggcells have an elongated shapea long axis allows a greater degree of shorteningMicrovilliCentriolesLysosomeCy tosolSmooth endoplasmicreticulumMicrotubuleMitochond rionPeroxisomeNucleolusRoughendoplasmicr eticulumNucleusNuclear envelopeChromatinRibosomesGolgi apparatusIntermediate filamentsighapmLre04pg127_130 5/12/04 12:44 PM Page 128 impos03 302:bjighapmL:ighapmLrevshts:layouts:red blood is the significance of the red blood cell being anucleate (without a nucleus)?
4 Did it ever have a nucleus? If so, when? the four cells observed from largest to smallest. Cell division : Mitosis and the three phases of mitosis in the following is the importance of mitotic cell division ? the phases of mitosis for a cell with a diploid (2N) number of or respond to the following statements: division of the 1is referred to as mitosis. Cytokinesis is division of the 2. The major structural difference between chromatin and chromo-somes is that the latter is 3. Chromosomes attach to the spindle fibers byundivided structures called 4. If a cell undergoes mitosis but not cytoki-nesis, the product is 5. The structure that acts as a scaffolding for chro-mosomal attachment and movement is called the 6. 7is the period ofcell life when the cell is not involved in division . Two cell populations in thebody that do not undergo cell division are 8and 9.
5 The implicationof an inability of a cell population to divide is that when some of its membersdie, they are replaced by , disc-shapedlarge surface area; more room to carry hemoglobinLimited existence. The nucleus is gone; therefore, the cell cannot manufacture new proteins, sBefore its release into the bloodstream.(student data) REVIEW SHEET 4129metaphaseanaphaseprophaseProvides cells for body growth and for repair of damaged binucleate cellspindleinterphaseneuronsskeletal and cardiac muscle cellsscar (connective) tissueighapmLre04pg127_130 5/12/04 12:44 PM Page 129 impos03 302:bjighapmL:ighapmLrevshts: the key, categorize each of the events described below according to the phase in which it :a. anaphaseb. interphasec. metaphased. prophasee. telophase1. Chromatin coils and condenses, forming The chromosomes are The nuclear membrane Chromosomes stop moving toward the Chromosomes line up in the center of the The nuclear membrane The mitotic spindle DNA synthesis Centrioles Chromosomes first appear to be duplex centromeres are attached to the kinetochore Cleavage furrow forms.
6 , 13. The nuclear membrane(s) is is the physical advantage of the chromatin coiling and condensing to form short chromosomes at the onset of mitosis? 130 REVIEW SHEET 4daeecddbbddeadShort, compact bodies are mechanically much easier to manipulate during mitosis than are long chromatin 5/12/04 12:44 PM Page 130 impos03 302:bjighapmL:ighapmLrevshts:layouts.
