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bIO156 lab 4




Question;Answer the following questions:List four cell structures that are common to both;plant and animal cells. (4 points)What structures are unique to plant cells? (2 points)What structures are unique to animal cells? (2 points)List five structures observed in the cell images and;provide the function of each structure. (5 points)Structure 1 and functionStructure 2 and functionStructure 3 and functionStructure 4 and functionStructure 5 and functionWilliam is observing a single-celled organism under a;microscope and notices that it has a nucleus and is covered in small;hair-like structures.Provide a probable name for this organism (1 point)Explain why William came to this conclusion. (2;points)Where in the cell are the chloroplasts located? (5;points)In osmosis, which direction does water move with;respect to solute concentration? (2 points)Answer the following questions:Explain what would happen to a freshwater unicellular;organism if it were suddenly released into a saltwater environment. Use;the terms isotonic, hypotonic and hypertonic in the;answer. (3 points)What would happen if a marine organism were placed in;freshwater? (3 points)A student purchases and weighs 5 pounds of carrots from;a local grocery store. She notices that the grocery store constantly;sprays its produce with distilled water. After returning home, she weighs;the carrots again and discovers that they weigh only 4.2 lbs. They also no;longer seem as crisp and taut. Provide a possible explanation for why the;carrots weighed more at the store, based on the information learned in;this lab. (5 points)One night, Hans decides to cook a hamburger and;spaghetti with meatballs. To test ideas of surface-to-volume ratios, he;makes a quarter pound hamburger and a quarter pound meatball and cooks;them at the same temperature. Which food item will cook the fastest and;why? (5 points)While watching a special on animals, Brianna discovers;that hares tend to lose heat through their ears. Based on this and what is;known about surface-to-volume ratios, propose an explanation as to why;hares that live in hot climates (such as the desert) have large, extended;ears. (5 points)(Application);How might the information gained from this lab pertaining to cell structures;and diffusion be useful to a student employed in a healthcare related;profession? (20 points)


Paper#63218 | Written in 18-Jul-2015

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