What does the first law of thermodynamics state? uestion 13 options: There is and always will be the exact same amount of energy in the universe. As temperature approaches absolute zero, the entropy approaches a constant minimum. Entropy of an isolated system tends to increase. If two systems are in equilibrium with a third, then they are in equilibrium with each other.

What does the first law of thermodynamics state? uestion 13 options: There is and always will be the exact same amount of energy in the universe. As temperature approaches absolute zero, the entropy approaches a constant minimum. Entropy of an isolated system tends to increase. If two systems are in equilibrium with a third, then they are in equilibrium with each other.

Biology 2e

2nd Edition

ISBN:9781947172517

Author:Matthew Douglas, Jung Choi, Mary Ann Clark

Publisher:Matthew Douglas, Jung Choi, Mary Ann Clark

Chapter6: Metabolism

Section: Chapter Questions

Problem 1VCQ: Figure 6.8 Look at each of the processes shown, and decide if it is endergonic or exergonic. In each...

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QUESTION 17 What is the effect of a catalyst on a reaction? O It increases the rate. O It decreases the entropy. O It changes the equilibrium. O It makes the products more stable.
Question 7 Which of the following is a chemical property? temperature O volume mass flammability
QUESTION 21 What is a transition state? O An isolable intermediate in a reaction. O The starting materials of the reaction. O A local maximum on the energy diagram. O A low-energy point between the starting materials and the product.
QUESTION 18 Which of the following describes the effect of a catalyst on a reaction? O It lowers the free energy of the products. O It makes the reactants less stable. O It changes the equilibrium constant. O It lowers the energy of activation.
Question 2 The following illustration shows a sequence of reactions at equilibrium: O the reaction A => B would be favored O the reaction B => A would be favored LY O the reaction C => B would be favored A = If you place A, B, and C in equal amounts in a test tube, what would happen initially? all the reactions would occur at the same frequency O can not be determined from the information provided c= B C
Question 43 Which of the following is NOT a property of water? O exhibit cohesion O Ice is less dense than water water molecules are polar water molecules require a small input of energy to raise the temperature O high heat of vaporization Question 44 The first law of Thermodynamics state that: O energy must come in the form of a three-prong outlet the ultimate source of energy in our universe is the sun energy can be created and destroyed in a vacuum O energy can neither be created nor destroyed
QUESTION 23 Which of the following describes a way in which receptor + ligand interactions are different than enzyme + substrate interactions? O Receptors transmit signal, enzymes catalyze reactions. Receptors cannot bind to ligands, enzymes can bind to substrates. Ligands are proteins, substrates are not proteins. Ligands are intracellular only, substrates are extracellular.
Question 1 The following illustration shows a sequence of reactions at equilibrium: Which molecule has the highest energy? OA OB OC > A O all three molecules have the same energy when at equilibrium O can not be determined from the information provided C: B 銀

QUESTION 13 Choose the statement that best explains potential energy vs. kinetic energy both describe the capacity to do work without input potential energy is measured in heat and kinetic in speed both occur in metabolic pathways and are always endergonic O potential energy is stored and kinetic energy is used in motion
Question 49 The first law of thermodynamics states O energy is changed when its form is changed O entropy decreases as energy is lost O energy cannot change form O energy cannot be created or destroyed
QUESTION 12 What chemical species does chymotrypsin stabilize the most during the course of the reaction? OA. the transition state O B. the substrate OC. the product(s) OD. the ES complex CE. the tetrahedral intermediate
QUESTION 2 AG of a reaction is influenced by the temperature at which the reaction takes place. This is due to the fact that increasing temperature increases the effect of which of the following variables in calculating AG? O bond energy O enthalpy O entropy O the rate constant