RADT_152_Unit_5_Exam

RADT_152_Unit_5_Exam - RADT 152 Radiation Protection Unit 5...

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Unformatted text preview: RADT 152 Radiation Protection Unit 5 Exam Overview of Cell Biology 2 Directions: 1. Write your name and the date on your Scantron form. Identify the subject as the course number (for example, RADT 150) along with the test number (for example, Unit 1). 2. For each of the questions below, select the best answer to the question. 3. Using a No. 2 pencil, fill in the appropriate answer on the answer sheet. 4. Erase unwanted answers completely. Questions with two or more filled in answer spaces are graded as incorrect. 5. Answer all questions. 6. You have a maximum 15 minutes to complete the following 25 questions. (Note this time factor approximates the amount of time you would be allowed to answer the same number of questions on the Registry examination in radiography) ------------------------------------------------------------------------------------------ 1. Free-moving, independent units are called: A. B. C. D. E. 2. A source of raw material for the release of energy is: A. B. C. D. E. 3. Organisms Cells Tissue Units Bacteria Oxygen Food Water Heat Exercise Water helps to break down the food. A. B. True False 3 4. Normal cell function enables the body to maintain: A. B. C. D. E. 5. Cell nutrients are used for the elimination of energy and for the synthesis of molecules. A. B. 6. Reconstructs itself Dies Functions abnormally All of the above Both B and C Proteins, carbohydrates, lipids, and nucleic acids compose ___________________ when combined with phosphorus and sulfur. A. B. C. D. E. 8. True False If radiation damages the cellular components involved in molecular synthesis beyond repair, the cell ___________________. A. B. C. D. E. 7. Equilibrium Constant Homeostasis A and B A and C Biomolecule elements Organic compounds Hydrogen Inorganic compounds Both organic and inorganic compounds The basic constitute of all organic matter is: A. B. C. D. E. Carbon Phosphorus Protoplasm Lipids Electrolytes 4 9. By combining amino acids into long chainlike molecular complexes, _________________ are formed. A. B. C. D. E. 10. Chemical secretions manufactured by various endocrine glands and carried by the bloodstream to influence activities of other parts of the body, such as growth and development are called: A. B. C. D. E. 11. True False Chromosomes are: A. B. C. D. E. 13. Hormones Antibodies Structural proteins Enzymatic proteins Synthesizing proteins RNA consists of two long sugar-phosphate chains, which twist around each other in a double-helix configuration and are linked by pairs of nitrogenous organic bases at the sugar molecules of the chain to form a tightly coiled structure resembling a twisted ladder or spiral staircase. A. B. 12. Electrolytes Peptide bonds Proteins Amino acids Lipids Tiny rod-shaped bodies, which under a microscope appear to be long threadlike structures Composed of DNA Paired up to form a full set of 46 chromosomes when a sperm fertilizes an egg cell All of the above A and B Radiation-induced chromosome damage may be evaluated during which of the following processes? A. B. C. D. E. Prophase Metaphase Anaphase Telophase Interphase 5 14. Which human cell component controls cell division and multiplication as well as biochemical reactions that occur within the cell? A. B. C. D. E. 15. Endoplasmic reticulum Mitochondria Lysosomes Nucleus Cell Wall Which of the following are activities of the cell membrane? 1. 3. Protection of the cellular contents from their environment. Control of the passage of water and other materials into and out of the cell. Allows all substances to pass. A. B. C. D. E. 1 and 2 only 1 and 3 only 2 and 3 only 1, 2, and 3 None of the above 2. 16. Somatic cells divide through the process of: A. B. C. D. E. 17. Meiosis Mitosis Mapping Metabolism Digestion What are the powerhouses of the cell that produce energy? A. B. C. D. E. Endoplasmic Reticulum Mitochondria Golgi Apparatus Ribosomes Lysosomes 6 18. Which cytoplasmic organelle combines proteins with carbohydrates to form glycoproteins? A. B. C. D. E. 19. What are lysosomes? A. B. C. D. E. 20. Carbohydrates Proteins Lipids Water Nucleic Acids What process reduces the number of chromosomes in each daughter cell to half the number of chromosomes in each parent cell? A. B. C. D. E. 22. Cytoplasmic organelles that contain hydrolytic enzymes for intracellular digestive processes. Protein factories that manufacture various proteins. The powerhouses of the cell. Organelles that combine proteins with carbohydrates. Organelles that participate in cell division. Ribosomes synthesize: A. B. C. D. E. 21. Centrosomes Mitochondria Golgi Apparatus Lysosomes Ribosomes Meiosis Mitosis Mapping Metabolism Digestion The G1 phase of interphase is: A. B. C. D. E. the DNA synthesis phase. the post-DNA synthesis phase preparing for mitosis. the post-DNA synthesis phase preparing for meiosis. the pre-DNA synthesis phase in which a form of RNA is synthesized in the cells that are to reproduce. the RNA synthesis phase. 7 23. Which one of the following phases does not occur during mitosis? A. B. C. D. E. 24. How many chromosomes will there be in a new individual when sperm and ovum unite? A. B. C. D. E. 25. Metaphase Telophase Interphase Anaphase Prophase 23 22 44 92 46 chromosomes chromosomes chromosomes chromosomes chromosomes What is the correct order for the phases of mitosis? A. B. C. D. E. Interphase, Prophase, Metaphase, Anaphase, Telophase Prophase, Telophase, Metaphase, Anaphase Prophase, Metaphase, Anaphase, Telophase Anaphase, Telophase, Prophase, Metaphase Metaphase, Anaphase, Telophase, Interphase, Prophase ...
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This note was uploaded on 11/12/2011 for the course RADIOLOGY 152 taught by Professor Walters during the Spring '11 term at Boise State.

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