
Concept explainers
(a)
Interpretation: To identify whether aminopeptidase is a hormone, a digestive enzyme or neither a hormone nor a digestive enzyme.
Concept introduction: Enzymes are specialized proteins that act as biological catalysts. Enzymes accelerate the biochemical reactions to produce the substances that are needed for cells for their proper functioning. The enzymes are very specific to their action.
Hormones are the chemical signals and these are produced by specialized cells. Hormones are secreted into the blood stream and carried to a target tissue where they signal the targeted tissue or organ to perform their specified function.
(b)
Interpretation: To identify whether pepsin is a hormone, a digestive enzyme or neither a hormone nor a digestive enzyme.
Concept introduction: Enzymes are specialized proteins that act as biological catalysts. Enzymes accelerate the biochemical reactions to produce the substances that are needed for cells for their proper functioning. The enzymes are very specific to their action.
Hormones are the chemical signals and these are produced by specialized cells. Hormones are secreted into the blood stream and carried to a target tissue where they signal the targeted tissue or organ to perform their specified function.
(c)
Interpretation: To identify whether
Concept introduction: Enzymes are specialized proteins that act as biological catalysts. Enzymes accelerate the biochemical reactions to produce the substances that are needed for cells for their proper functioning. The enzymes are very specific to their action.
Hormones are the chemical signals and these are produced by specialized cells. Hormones are secreted into the blood stream and carried to a target tissue where they signal the targeted tissue or organ to perform their specified function.
(d)
Interpretation: To identify whether secretin is a hormone, a digestive enzyme or neither a hormone nor a digestive enzyme.
Concept introduction: Enzymes are specialized proteins that act as biological catalysts. Enzymes accelerate the biochemical reactions to produce the substances that are needed for cells for their proper functioning. The enzymes are very specific to their action.
Hormones are the chemical signals and these are produced by specialized cells. Hormones are secreted into the blood stream and carried to a target tissue where they signal the targeted tissue or organ to perform their specified function.

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Chapter 26 Solutions
General, Organic, And Biological Chemistry, Hybrid (with Owlv2 Quick Prep For General Chemistry Printed Access Card)
- Indicate the variation in conductivity with concentration in solutions of strong electrolytes and weak electrolytes.arrow_forwardThe molar conductivity of a very dilute solution of NaCl has been determined. If it is diluted to one-fourth of the initial concentration, qualitatively explain how the molar conductivity of the new solution will compare with the first.arrow_forwardWhat does the phrase mean, if instead of 1 Faraday of electricity, Q coulombs (Q/F Faradays) pass through?arrow_forward
- What characteristics should an interface that forms an electrode have?arrow_forwardFor a weak acid AcH, calculate the dissociated fraction (alpha), if its concentration is 1.540 mol L-1 and the concentration [H+] is 5.01x10-4 mol L-1.arrow_forwardIf the molar conductivity at infinite dilution of HAC is A0 = 390.5 S cm² mol¹. Calculate the Arrhenius conductivity of a 9.3% by weight solution of HAc with a pH of 3.3. Data: molecular weight of HAC is 60.05 g/mol and the density of the solution is 1 g/cm³.arrow_forward
- If the molar conductivity at infinite dilution of HAC is A0 = 390.5 S cm² mol¹. Calculate the Arrhenius conductivity of a 9.3% by weight solution of HAc with a pH of 3.3. Data: molecular weight of HAC is 60.05 g/mol and the density of the solution is 1 g/cm³.arrow_forwardIf the molar conductivity at infinite dilution of HAC is A0 = 390.5 S cm² mol¹. Calculate the Arrhenius conductivity of a 9.3% by weight solution of HAc with a pH of 3.3. Data: molecular weight of HAC is 60.05 g/mol and the density of the solution is 1 g/cm³.arrow_forwardDetermine the distance between the metal and the OHP layer using the Helm- holtz model when the electrode's differential capacitance is 145 μF cm². DATA: dielectric constant of the medium for the interfacial zone &r= lectric constant of the vacuum &0 = 8.85-10-12 F m-1 = 50, die-arrow_forward
- Describe a sequence of photophysical processes that can be followed by radiation adsorbed by a molecule in the ground state to give rise to phosphorescent emission.arrow_forwardState two similarities between fluorescence and phosphorescence.arrow_forwardState three photophysical processes that can be related to the effects of incident radiation on a molecule in its ground state. Consider that radiation can give rise to fluorescent emission, but not phosphorescent emission.arrow_forward
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