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BIOCHEMISTRY QUIZ -NITRATE ASSIMILATION-

BIOCHEMISTRY QUIZ -NITRATE ASSIMILATION-. 1. The reservoir for nitrogen is ... a . the atmosphere. b . rocks. c . ammonia. d . nitrates. e . amino acids. 2. Higher plants most often absorb nitrogen from the soil in the form of ... a . N 2 . b . nitrites. c . ammonia. d . nitrates.

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BIOCHEMISTRY QUIZ -NITRATE ASSIMILATION-

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  1. BIOCHEMISTRY QUIZ -NITRATE ASSIMILATION-

  2. 1 The reservoir for nitrogen is ... a. the atmosphere. b. rocks. c. ammonia. d. nitrates. e. amino acids.

  3. 2 Higher plants most often absorb nitrogen from the soil in the form of ... a. N2. b. nitrites. c. ammonia. d. nitrates. e. amino acids.

  4. 3 NO3- + NADH NO2-+ NAD+ This is the reaction of ... • Nitrification • Denitrification • Nitrogen fixation • Nitrate reduction • Nitrite reduction

  5. 4 NO3- + NADH  NO2- + NAD+ The reaction is catalyzed by ... • Glutamate dehydrogenase / GDH • Glutamate synthase / GOGAT • Glutamin synthetase / GS • Nitrate reductase • Nitrite reductase

  6. 5 NO3-+ NADH  NO2- + NAD+ The reaction takes place in the ... • Vakuola • Chloroplast • Leucoplast • Cytosol • I dont know

  7. 6 NO2- + reduced ferredoxin NH4+ oxidized ferredoxin The reaction is catalyzed by ... • Glutamate dehydrogenase / GDH • Glutamate synthase / GOGAT • Glutamin synthetase / GS • Nitrate reductase • Nitrite reductase

  8. 7 NO2- + reduced ferredoxin  NH4 + oxidized ferredoxin The reaction takes place in the ... • Vakuola • Chloroplast • Leucoplast • Cytosol • I dont know

  9. 8 NH4 + glutamate + ATP  glutamine + ADP + Pi The reaction is catalyzed by ... • Glutamate dehydrogenase / GDH • Glutamate synthase / GOGAT • Glutamin synthetase / GS • Nitrate reductase • Nitrite reductase

  10. 9 Which of the following amino acids is the smallest of all amino acids? • Alanine • Serine • Valine • Glycine • I dont know

  11. 10 Which of the following amino acids can form a special covalent bond called a disulfide bond? • Tyrosine • Methionine • Cysteine • Lysine • I dont know

  12. THE END

  13. KUNCI JAWABAN 1. A 2. D 3. D 4. D 5. D 6. E 7. B 8. C 9. D 10. C

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