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Name: _______________________________________________ Date: ___________________ Cells Review Questions Questions 1 – 5 refer to the cell diagram below 1. What type of cell is represented by Cell 3 above? (eukaryotic or prokaryotic) 2. How do you know your answer to #1? 3. What organelle is represented by letter G? 4. What organelle is represented by letter I? 5. What organelle is represented by letter H? Selected Response: Circle the letter of the response that best answers the question. Each response only has one correct answer. 6. Scientists have shown that a newly discovered organism is a species of bacteria. Which of these is found in the cells of the new species? a. DNA b. Mitochondria c. Nucleus d. Golgi Body 7. Euglena and Paramecium are both eukaryotes because they… a. Can reproduce b. Have a nucleus c. Have cell wall d. Have ribosomes 8. Eukaryotic cells differ from prokaryotic cells in that eukaryotic cells: a. Lack organelles b. Have DNA, but not ribosomes c. Are single-celled d. Have a nuclear membrane Matching: Write the letter on the line to match the organelle with its function. (1 pt each) (Note: Not all of the functions listed will be used!) ____ 9. Nucleus A. stores water, waste, food, and other materials ____ 10. Cytoplasm B. controls what moves in and out of the nucleus ____ 11. Cell Membrane C. is the control center ____ 12. Nuclear Membrane D. the jelly-like part of the cell that holds all the other organelles ____ 13. Lysosome E. creates proteins ____ 14. Ribosome F. contains digestive enzymes, breaks down waste ____ 15. Vacuole G. controls what moves in and out of the cell 16. Euglena use which of these to move? a. Cilia b. Flagellum c. Vacuole d. Pseudopodia 17. Which of the following cell structures is not attached to the cell membrane and is responsible for movement of the cell from one location to another? a. cilia b. vacuole c. flagella d. pseudopodia 18. Keratin is a protein found in hair. Keratin is made in the a. nucleus. b. vacuole. c. ribosome. d. mitochondria. 19. Which part of the yeast cell converts the nutrients in the sugar solution into energy? a. the cell membrane b. the nucleus c. the mitochondrion d. the ribosome 20. Some cells, such as human nerve and muscle cells, contain many more mitochondria than do other cells, such as skin cells. Why do some cells have more mitochondria than others? A. The cells use more energy. B. The cells store more nutrients. C. The cells degrade more proteins. D. The cells divide more frequently. 21. Photosynthesis and cellular respiration are alike because both processes A. produce glucose. B. consume carbon dioxide. C. take place in the chloroplasts. D. involve energy transformations. 22. Which of these describes the primary function of cell membranes? A. They allow certain molecules to enter and exit the cell. B. They allow all molecules to enter and exit the cell. C. They do not allow molecules to enter or exit the cell. D. They allow all molecules to enter the cell, but not exit. 23. Which of these structures is found in plant cells but not in animal cells? A. a chloroplast B. a mitochondrion C. a cell membrane D. a nuclear membrane 24. Which organelle is correctly matched with the cell process it performs? A. vacuole—storage site for the cell B. chloroplast—diffusion of water in root systems C. mitochondrion—control center of the cell D. ribosome—production of messenger RNA molecules in yeast cells 25. Which of the following processes occurs in chloroplasts? A. cellular respiration B. natural selection C. photosynthesis D. mitosis 26. The exchange of oxygen and carbon dioxide between the body and the air occurs in the lungs. This exchange of gases takes place at the cellular level. What part of the cell is primarily responsible for this exchange? A. the cell membrane B. the nucleus C. the cell wall D. the ribosome 27. The diagram below shows the key steps for making proteins. Which step involves ribosomes? A. I B. II C. III D. IV 28. Mature human red blood cells lose their nucleus during their development. Which of these are, therefore, absent from red blood cells? A. cytoplasm and cytosols B. membranes C. chromosomes D. vacuoles 29. A plasma membrane is primarily made up of a(n) A. cholesterol layer. B. enzyme layer. C. lipid bilayer. D. protein bilayer. 30. The cell membrane of the red blood cell will allow water, oxygen, carbon dioxide, and glucose to pass through. Because other substances are blocked from entering, this membrane is called F. perforated. G. semi-permeable. H. non-conductive. J. permeable. 31. The structure most responsible for maintaining cell homeostasis is the F. cytoplasm. G. cell wall. H. mitochondria. J. plasma membrane. 32. A plasma membrane is primarily made up of a(n) A. cholesterol layer. B. enzyme layer. C. lipid bilayer. D. protein bilayer.