Classify each of the following examples as: (1) potential energy, (2) kinetic energy, or (3) a transformation of energy DOD electron transport causes hydrogen ions (H+) to accumulate in a membrane-enclosed compartment sunlight heat ATP supplies one of its phosphates to a membrane protein, activating it so that it can transport a specific molecule glucose (a monosaccharide sugar with the chemical formula C6H1206) 1. potential energy 2. kinetic energy 3. energy transformation

Classify each of the following examples as: (1) potential energy, (2) kinetic energy, or (3) a transformation of energy DOD electron transport causes hydrogen ions (H+) to accumulate in a membrane-enclosed compartment sunlight heat ATP supplies one of its phosphates to a membrane protein, activating it so that it can transport a specific molecule glucose (a monosaccharide sugar with the chemical formula C6H1206) 1. potential energy 2. kinetic energy 3. energy transformation

Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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Many enzyme mechanisms involve transferring protons. Sidechains of an enzyme can act as catalytic acids or catalytic bases in this process. The figure below shows a step in the reaction by the enzyme triose phosphate isomerase. Glu165 group. -OH Would a catalytic acid gain or lose a proton? Which sidechain in the mechanism is acting as a catalytic acid? co CH,OPO, 2- Activity remaining (%) Would a catalytic base gain or lose a proton? Which sidechain in the mechanism is acting as a catalytic base? 100 Curve I 8 Glu¹65 9 Below are two pH rate profiles showing the percent activity as a function of pH. Answer the questions below about how these curves relate to the mechanism of triose phosphate isomerase. Remember what fraction of a titratable group is unprotonated at the pka. 10 OH In this reaction a carbonyl is converted into an enol intermediate. Circle the enol 100 Activity remaining (%) H Curve 2 CIOH CIOH CH₂OPO,²- 8 9 N N 10 7 pH PH i) Which of these curves shows the pH rate…
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The following diagrams illustrate the two aqueous spaces and the inner membrane of a mitochondrion. In which diagram is the relative concentration of protons auch that ATP synthesis could occur if ATP synthase were present? (Gold spheres represent protons.) 圈圈圈圈圈 A B D E OA OB OC OD OE intermembrane space Anner membrane matrie
Which of the following which of the following reactions is an endergonic reaction that could occur in a cell, but only if coupled to the hydrolysis of ATP? ( delta G= -32 kJ/ mol)?
The second law of thermodynamics, in a very general sense, states that entropy (S) is always increasing. ASuniverse AS system + AS surroundings > 0 When phospholipids are dispersed in an aqueous solution, they will often form more ordered structures in the form of micelles, liposomes, or lipid bilayers. This behavior seemingly contradicts the second law of thermodynamics. Why is this behavior in agreement with the second law of thermodynamics? Liposome Micelle Bilayer sheet
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We learmed about the equation: AG AH -TAS. We can apply the knowledge to ATP hydrolysis reaction. Below which statement is correct? AH is the change in entropy. AS is the change in enthalpy. In ATP hydrolysis, AH is negative (which could be explained by a relief of charge-charge repulsion when ATP loses one phosphate). In ATP hydrolysis, AS is negative (which could be explained by the fact that ATP hydrolysis generates multiple products and a "state of disorder" increases). In ATP hydrolysis, AG is positive.
The synthesis of ATP by oxidative phosphorylation, using the energy released by movement of protons across the membrane down their electrochemical gradient, is an example of which of the following processes?