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Homework 1 s13 v2

Animals lacking a functional copy of the kb gene kb

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Animals lacking a functional copy of the Kb gene (Kb - individuals) have altered cellular Katrinase concentrations. Snarl is a direct-competitive regulator of Katrinase activity. 2a. (5 points) Draw in the line to complete the upper right graph. Make it clear what 2 points you used to generate your line! 2b. (5 points) Draw in the bar to complete the lower left graph. 2c. (5 points) Add a line to the upper left graph to represent the kinetics of Katrinase in a wild type individual when SNARL is active. 2d. (5 points) Which is most likely? a. Kb is the gene that codes for Katrinase b. Kb is a gene coding for a transcription factor that helps increase Katrinase gene expression c. Kb is a gene coding for a transcription factor that helps decrease Katrinase gene expression d. Kb codes for an allosteric activator of Katrinase e. Kb codes for an allosteric inhibitor of Katrinase
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Bi212 HW#1 Due Wednesday of week 3 page 3 of 6 3. Add to the diagram below to show how metabolic thermogenesis alters metabolism. Indicate where cytochrome oxidase, hexokinase and PFK belong in the diagram as well. Label the mitochondrial matrix, intermembrane space and cytoplasm. 4. Describe and /or sketch the paired negative feedback loops that control the rate of aerobic cellular respiration. Your answer should include how regulation connects the electron transport chain to the rate of glycolysis. 5a. Plant (or bacterial) cells but not animal cells can cells become turgid. Why? 5b. Define turgid as an inequality. Ψ p 0 5c. Define flaccid as an equality. Ψ p 0 5d. Define tension as an inequality Ψ p 0
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Bi212 HW#1 Due Wednesday of week 3 page 4 of 6 Dasein Kinase converts dasein and ATP into existential-acid and ADP. The enzyme is
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