BIO 110 First Exam(avec anwsers)

BIO 110 First Exam(avec anwsers) - BIO 110 First Exam 1)...

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BIO 110 First Exam 1) Mosquitoes have heritable variation for insecticide resistance (amount and kind); however, all mosquitoes require standing water for the development of offspring. To which of the following control methods would the mosquitoes be least likely to develop resistance? A) Rotating between several sprayed insecticides B) Using one spray insecticide consistently C) Removing all standing water D) Increasing sources of standing water E) Alternating between years of spraying and not spraying insecticide 2) To distinguish prokaryotes and eukaryotes, we need to consider: A) The specific types of lipids present in the outer plasma membrane B) The type of molecule used as its genetic information C) Whether the genetic information is enclosed in a protective layer of phospholipid membrane bilayer D) Whether the organism is harmful to the cell 3) In which way are cells and viruses different in how they reproduce? Viruses: A) Only reproduce sexually by fusing with another virus; cells can reproduce both sexually and asexually B) Make a duplicate copy of their genetic material before they can divide in two; cells can wait until after they have divided to copy genes C) Only reproduce after entering a host cell; cells can reproduce alone D) Invade a cell after they have reproduced; cells can invade other cells without reproducing first 4) An organism has the following” proteins, DNA, ribosomes, plasma membrane and mitochondria (among other structures.) Select the most inclusive answer for what type of organism it could be. A) A prokaryote cell B) A virus or a prokaryote cell C) An animal cell, but not a protest cell D) An eukaryote cell, but not a plant cell E) Any eukaryote cell
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5) Which of the following would you NOT expect to find in a Toxoplasma cell? A) Golgi B) Plastids C) Mitochondria D) Lysosomes E) Rough endoplasmic reticulum 6) Beavers in North America used to be more active during the daytime (diurnal), but are now largely nocturnal, probably a result of intensive trapping and hunting during the 1800s. Assuming that this behavior is partially or completely genetically determined, what can we predict happened to the population? A) Beavers have evolved to be more nocturnal because they had to be more secretive B) Beavers have evolved to be more nocturnal because natural selection selectively removed daytime beavers C) Beavers have not evolved; the population just changed D) Beavers have not evolved, because both diurnal and nocturnal beavers were trapped; it’s just that more of the diurnal ones were killed E) At this point we cannot make any predictions about beaver evolution, because they have not become a different species yet 7) You have an infection caused by a prokaryotic pathogen. Which of the following would make a good choice for killing off the prokaryote without harming your cells? A) A drug that prevents mitochondria from functioning
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This note was uploaded on 04/07/2008 for the course BIO 110 taught by Professor Fairchild during the Fall '07 term at West Chester.

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BIO 110 First Exam(avec anwsers) - BIO 110 First Exam 1)...

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