ps5q - MIT Department of Biology 7.014 Introductory...

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2 + MIT Department of Biology 7.014 Introductory Biology, Spring 2004 Name:__________________________________________ Section: ______ 7.014 Problem Set 5 Please print out this problem set and record your answers on the printed copy. Problem sets will not be accepted late. Question 1 a) Fill in the following table: Process: Energy Source: Carbon Source: Anaerobic Photosynthesis Aerobic Photosynthesis Chemosynthesis Aerobic Respiration Lactic Acid Fermentation b) You've been stranded on a deserted island with the following: 1) a heterotroph that carries out anaerobic respiration 2) an autotroph that carries out chemosynthesis 3) an autotroph that carries out oxygenic photosynthesis For each of the transformations below, indicate which organism(s) would be responsible for the conversion. Fe Fe 2 + 3 + O 2 2 2 H O organic C CO 1
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CO 2 glucose Name:__________________________________________ Section: ______ Question 1, continued c) Fill in the blanks on the following graph and indicate which type of metabolism this organism is using. H + gradient NADH + H + NAD + e e O 2 Metabolism?______________ d) Consider the metabolism diagrammed below: 1 - SO 4 2- e O 2 3 2 H S H 2 O 2 H + gradient ADP + P i NADP + NADPH ATP e - 2 H S SO 4 2 - 4 i) This type of metabolism is an example of __________________. It is most commonly carried out by ________________ organisms. These organisms are _________trophs. ii) What is the energy stored in the ATP and the NADPH produced above used for? 2
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Name:__________________________________________ Section: ______ Question 2 Your ongoing interest in bioluminescent organisms has lead you to study the Hawaiian squid, Euprymna scolopes . Most nocturnal creatures cast shadows under the bright Hawaiian moonlight, and are easy prey to predatory fish. This type of squid can shine light downwards to match the moonlight and avoid casting a shadow thereby decreasing predation. To provide squid for your studies, you maintain a large, self-supporting squid tank. The food web of the tank is shown below.
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This note was uploaded on 05/02/2009 for the course BIOL 7.014 taught by Professor Walker during the Spring '05 term at MIT.

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ps5q - MIT Department of Biology 7.014 Introductory...

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