.\'ll AT&T; 2:09 PM @ 50%. EXTRA CREDIT.docx 14. Scientists have hypothesized th
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.'ll AT&T; 2:09 PM @ 50%. EXTRA CREDIT.docx 14. Scientists have hypothesized that mitochondria evolved from aerobic heterotrophic bacteria that entered and established symbiotic relations with primitive acrobic eukaryotes. According to this hypothesis, the bacteria that entered the primitive eukaryotic cells were able to carry out which function(s) that the primitive eukaryotic cells could not? A) glycolysis b) citric acid cycle and electron transport c) cell division d) transcription and 15. The enzyme aspartate transaminase catalyzes the following reaction: Compound 3 Compound Compound 2 Compound 4 Asp alpha-ketoglutarate Glu Aspartic acid found in living cells has the following stereochemical formula: Aspartate transaminase requires the coenzyme ridoxal e which has the following formula: Pyridoxal phophate acts as the carrier of the amino (-NH group in this reaction. In the absence of reaction, pyridoxal phosphate binds to a (CH4NH group on the enzyme. The reaction is reversible with K I 15A What stereochemical designation can be assigned to naturally occuring aspartic acid? A) S b) Z c) D d) E 15B The side chain of which amino acid is used by the transaminase to bind pyridoxal phosphate in the enzyme's resting state? A) Val b) Asp c) Phe d) Lys Open With PrintExplanation / Answer
14 - enzymes for citric acid cycle and Electron transport chain are found exclusively only in Mitochondria. So we can easily make out that the primitive Eukaryotic were lacking the enzymes for TCA cycle and electron transport chain,
So the answer is option C
15- a-
IN R, S system All the amino acid are L-amino acids is designated as S except Cysteine.
So the answer is option A.
b- Enzyme use Lysine- to attach itself to Pyridoxal phosphate.
So the answer is option D
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