General Biology 151, Exam 3 Total 50 points: Good Luck and Have Fun!! For questions 1-12, choose from the following answers provided below. (1 point each, total 12 points). A. Nucleus E. Lysosomes I. Ribosomes B. Nucleolus F. Endoplasmic reticulum J. Centrioles C. Mitochondrion G. Golgi apparatus K. Vacuoles D. Cytoplasm H. Peroxisomes L. Cila/Flagella Nucleolus 1. Produces ribosomes, sends them out of the nucleolus and into the cytoplasm, located within the nucleus Cytoplasm 2. Spans the cell between the nuclear envelope and the cell membrane, serves as a medium for other organelles; site of numerous biochemical reactions Vacuoles 3. May be filled with water, food, or other storage items, Spaces surrounded by a single membrane Ribosomes 4.Function as the sites of protein synthesis, Composed of RNA, May exist in free or bound states Nucleus 5. Controls all activities of the cell, contains DNA in the form of chromosomes Golgi apparatus 6. Modifies, packages, and transports secretory proteins Centrioles 7. Function in cell division, Made from protein-derived microtubules paired structures near the nucleus Mitochondrion 8. Double-membraned; site of ATP production Peroxisomes 9. Degrade hydrogen peroxide into water and oxygen, single membranes; contain catalyses Endoplasmic reticulum 10. Its “rough” sections are the sites of protein synthesis, consists of extensive sheets of connected membrane Lysosomes 11. Contain hydrolytic enzymes, small and sac-like; degrade and “break down” worn out structures (macromolecules) and foreign matter Cila/Flagella _ 12. structures that aid in locomotion and help move fluids across the surface of tissue cells in animal
Questions 13-45 Multiple Choice (1 point for each correct answer) 13. Which of the following are prokaryotic cells? A. plantsB. animalsC.bacteriaD. fungi
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- Fall '17