Principles of Biology
Principles of Biology BIOL 1100
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Date Created: 10/11/15
Rudel Fall 2010 Biol 1100 October 22 Special Code 111111 Midterm exam 2 Biology 1100 Section 1 Fall 2010 16 Matching you are being given a diagram showing two reactions Labels A and B refer to the two solid lines C D and E refer to the ball and stick figures A B and C refer to the three respective doubleheaded arrows For the following set of questions you are to choose from these labeled items entering A on your bubble sheet if the answer is eitherA or A etc Some labeled items may not be used some maybe used more than once Enter only the single most correct answer 1 A owe AB C Free Energy Progress of Reaction 2011 Pearson Education Inc 1 Which label refers to an enzyme s function in orienting reactants 2 Which label refers to the net change in potential energy of the chemical reaction 3 Which label refers to a nonspontaneous reaction 4 Which label refers to the reduction in activation energy due to a catalyst 5 Which label refers to transition state Which label refers to a reaction that could result in the production of ATP 6 What are the three phases stages of the Calvin cycle glycolysis krebs cycle oxidative phosphorylation dark reactions photosystem I photosystem II fixation reduction regeration investment payback pyruvate processing none of the above involve stages of the Calvin cycle WUOWCDQ 1 Rudel Fall 2010 Biol 1100 October 22 Special Code 111111 8 Two photosystems work together If photosystem I is not working photosystem 11 does not function well because A Photosystem 11 cannot replace its electrons B Photosystem I is first in the z scheme C Photosystem II has no place to put its electrons and quotbacks up D Photosystem 11 does not get the NADPH it needs to run E The statement is false each photosystem can work independently very well 9 Which of the following functional groups are found in sugar molecules A carboxyl B cabonyl C sulfhydryl D amino E phosphate 10 Which ofthe following is a function ofphosphofructokinase A To drive an irreversible reaction that forces the previous isomerase reaction towards phosphofuctose B To symmetrically add a phosphate group to destabilize the sixcarbon sugar C To provide a point of feedback regulation in glycolysis D All of these are functions ofphosphofructokinase E None of these are function ofphosphfructokinase 11 CAM plants fix C02 in the dark A True B False 12 The majority of energy from glucose after glycolysis resides in A pyruvate B glucose C glyceraldehyde3phosphate D NADH E ATP 13 C4 plants move four carbon molecules from mesophyl cells to bundlesheath cells for use in the dark reactions through A Tight junctions B Desmosomes C Plasmodesmata D Gap junctions E C4 plants don t move four carbon compounds from mesophyl cells to the bundle Rudel Fall 2010 Biol 1100 October 22 Special Code 111111 14 Which of the following processes requires the input of ATP A Glycolysis B The Krebs cycle C Pyruvate processing D Both glycolysis and the Krebs cycle E Both glycolysis and pyruvate processing 15 Betaoxidation of a sixcarbon fatty acid will produce NADH FADH2 ATP and C02 from the Krebs cycle A 22 33 11 33 22 l 000 Ch WOODS Ch vthChm 16 If photosynthesis is occurring rapidly the sugar formed is processed into A glucose B sucrose C starch 17 Pyruvate dehydrogenase is positively regulated turned on by ATP NADH NAD FADHZ acetylCoA WPOF 18 The enzyme ATP synthase uses which of the following as an energy source to make ATP A NADH B a proton motive force C FADHZ D sun light E ATP 19 The ultimate electron acceptor for the electron transport chain is A cytochrome c B ubiquinone C NADH D 02 E ATP 20 During cellular respiration we use almost all of the potential energy in the glucose molecule A True B False Rudel Fall 2010 Biol 1100 October 22 Special Code 111111 21 Which of the following enzymes reduce the activation energy of the reaction it is involved with by aiding in the formation of an intermediate A Hexokinase B Rubisco C Pyruvate dehydrogenase D All of the above E None of the above 22 Glucose mannose galactose and fructose are all sixcarbon sugars Which of these sugars are isomers of each other A glucose and galactose B mannose and galactose C glucose and fructose D All of the above E None of the above 23 Which ofthe following statements is NOT true about Rubisco A It is an evolutionarily ancient enzyme B It has six active sites C It is a slow enzyme D It is required to fix organic carbon from C02 E It helps to catabolize organic carbon to release C02 24 Plants are green because chlorophyll a and chlorophyll b absorb green wavelengths absorb blue wavelengths absorb red wave lengths Both A and B Both B and C WPOF 25 Photosystem I can make ATP without photosystem II A True B False 26 Photosystem I can efficiently make NADPH without photosystem II A True B False 27 When the reaction center of photosystem 11 transfers highenergy electrons to pheophytin the reaction center is and pheophytin is reduced oxidized oxidized reduced reduced reduced oxidized oxidized none of the above there is no oxygen involved 4 mpowgt Rudel Fall 2010 Biol 1100 October 22 Special Code 111111 28 Because C4 plants fix C02 with PEP carboxylase they do not require Rubisco for sugar production A True B False 29 Glucose and galactose are both sixcarbon sugars that are aldehydes They differ principally in which way A Position of the hydroxyl groups B Chemical formula C Position of the carbonyl group D Position of the carboxyl group E Molecular mass 30 To increase C02 concentrations for carbon fixation some plants try bring in temporarily fixed C02 from other locations or stored C02 fixed at another time A True B False 31 Stomata principally open to allow in ow of and close to prevent out ow of X62 C02 B 02 H20 C C02 H20 D H20 C02 E None of the above 32 UV light is bad because a UV photon excites an electron so much it says quotHot Dmn I m going on vacation So it shoots off its atom creating a free radical that wants to steal back an electron from another molecule A True B False 33 During oxidative phosphorylation each NADH input can pump protons and each FADHZ can pump protons into the A 2 3 cytosol B 2 3 stroma C 3 2 thalakoid lumen D 3 1 intermembrane space E 3 2 intermembrane space 34 Which of the following is true about fermentation A It occurs when there is not enough 02 for oxidative phosphorylation B It requires turning off the Krebs cycle C In anaerobic environments it is required for NAD regeneration D It makes Saturdays great and Sunday morning Hll because of the beer I drank E All of the above are true Rudel Fall 2010 Biol 1100 October 22 Special Code 111111 3544 Matching You are being given ten terms or phrases labeled AE and A E For the following set of questions you are to choose from these terms entering A on your bubble sheet if the answer is either A or A etc Some labeled items may not be used some maybe used more than once Enter only the single most correct answer Read all the answers before answering notice C D and E A The Calvin cycle A Pyruvate processing B Betaoxidation B Photosystem I C Glycolysis C Two of these processes do D The Krebs cycle D Three of these processes do E Photosystem II E None of these processes do 3 U1 Which of these processes produce C02 3 9 Which of these processes use C02 3 l Which ofthese processes produce 02 3 9 Which of these processes use 02 3 0 Which process use H20 as a source of electrons 4 O Which of these processes is inhibited by 02 4 H Which ofthese processes is inhibited by NADH 4 N Which of these processes create a proton motive force 4 w Which of these processes takes place in the mitochondria 4 5 Which of these processes take place in the chloroplast U1 4 Congratulations You re expecting your first child and telling Grandma the good news but you feel tense and have a headache So you are looking through your Grandmother s medicine cabinet There are no aspirin tylenol or ibuprofin but there is an old prescription for a mild sedative Thalidomide It must be safe for you to take this drug A True B False
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