17. For a theoretical metabolic pathway that proceeds: ABCD EF G°(kcal/mole) 2.1

Question

17. For a theoretical metabolic pathway that proceeds: ABCD EF G°(kcal/mole) 2.1-1.8 0.6 1.2-4.1 Would this metabolic pathway be able to occur with the input of additional energy? A. Yes B. No C. Not enough information For the following peptides, A. GWLIVFA B. RKTAKSRH C. STQNYHCT D. EVDAETDG 18. Which would engage in the most hydrogen bonds? 19. Which would most likely be found in a transmembrane helix? 20. Which would bind to a negatively charged surface (e.g., a phosphate backbone)? 21. Which would bind to a positively charged surface (e.g., a histone)? Units and Calculations: (Consult the Moles and Molarity Document Posted on Blackboard for help) 22. The molecular weight of NaCl is 58.4 g/mole. In order to make up "normal saline", as is typically use as an IV fluid in patients, or as the base in physiological buffers, a typical concentration is 150 mM. How many grams of NaCl would you need to add to 500 ml of water to make up "normal saline"? A. 4.38 g B. 43.8 g C. 9.76 g D. 8.76 g E. 17.52 g 23, what is the concentration of dATP in a PCR reaction, where it is present at 98.2 /ml? The molecular weight of dATP is 491.2 g/mole. A. 200 mM B. 200 C. 200 nM D. 200 pM 24. 0.000050 M is the same as: A. 5 mM B. 50 mM C. 5 D. 50 E. 500 nM 25. How many molecules of NaCI are in 116.8 g of NaCI? A. 6 x 1023 B. 12 x 1023 C. 6 x 1024 D. 12 x 102

Explanation / Answer

17 = Yes this metabolic pathway occur with the input of additional energy i.e. activation energy.

Beacause

The change in Gibbs free energy (G) is negative for

exothermic reactions and can only be negative for spontaneous reactions.

However, the activation energy required in intermediate stage where change in gibbs energy is positive and this cause reaction to occur slowly.

not mention specifically which question i have to solve ,so acc to chegg policy first question is explained.

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