11. You are a modern physiological detective. While working late one night in yo
ID: 275805 • Letter: 1
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11. You are a modern physiological detective. While working late one night in your laboratory, you are convinced that you've discovered a new organic molecule. You conduct an experiment and observe that the mystery molecule easily dissolves in water. "LIKE DISSOLVES LIKE!", you proclaim. Which is a property of this unknown substance? A. Non-polar. B. Hydrophilic. C. Hydrophobic. D. Hypertonic. E. Poly-unsaturated hydrocarbon. 12. Which statement is false? A. Glycolysis yields twice the amount of energy per gram as protein catabolism. B. Negative feedback is the most stable of all physiological control mechanisms. C. Axons carry Action Potentials over long distances D. Facilitated diffusion is a passive process and does not require energy from ATP hydrolysis.Explanation / Answer
Ans 11. It is given that the compound discovered is readily soluble in water. It is the property of polar molecules that they form hydrogen bond with water and easily get dissolved.
This suggests that the molecule is hydrophilic.
Ans 12. Option A is false.
Both protein and carbohydrate produce same amount of energy per gram during the catabolism process in their respective pathways.
However all other statements are correct .
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