Imagine that you are the lucky recipient of a pet paramecium, a type of unicellular organism. In order to properly care for your new pet, you have to figure out how much you need to feed it. The dimensions of your paramecium are roughly 125 X 50 X 20. If seven food molecule can enter through each square micrometer of surface every minute, how many molecules can your pet eat in 1 minute? If your pet needs one food molecule per cubic micrometer of volume every minute to survive, how much would you have to feed it every minute?
Could you also include the labels?
2006-09-27 13:29:57 · 1 answers · asked by Sarah S 3 in Education & Reference ➔ Homework Help
first correct answer 10 points
2006-09-27 14:11:28 · update #1
Assuming that your paramecium is box-shaped:
Surface area = 2l*w + 2l*h + 2w*h
Volume = l*w*h
Food eaten = 7 * Surface area
Food eaten = 7 * (2l*w + 2l*h + 2w*h)
Food eaten = 7 * (2(125 * 50) + 2(125 * 20) + 2(50 * 20))
Food eaten = 7 * (2(6250) + 2(2500) + 2(1000))
Food eaten = 7 * (12500 + 5000 + 2000)
Food eaten = 7 * (19500)
Food eaten = 136500 food molecules / minute may be eaten.
Volume: l * w * h = 125 * 50 * 20 = 125000 food molecules / minute must be eaten.
2006-09-28 02:56:27 · answer #1 · answered by ³√carthagebrujah 6 · 0⤊ 0⤋