s states that: created nor destroyed 23. Second law of of usable energy in form
ID: 300386 • Letter: S
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s states that: created nor destroyed 23. Second law of of usable energy in form of heat C. Leveewy converwonreslts in a loss a. Loerey cannot be changed from without a loss of useable energy c. Generate an enrymatk pathway an anabolic pathway d Generate a Catalyped pathway in a has, activation enerey and thus causes areaction rate? y chemical bond enengy, hea 27, All of the following are acthwated carriers excet 29. in what direction does a chemical reaction proceedi Directiom in which loss of C Direction that leads to a more positive free enery d Direction shat leads to 0. Coupled reactions are Energetically avorable b. Brings enengetically favorable and sonfavorable reactions together d. None of these choices seem night 1. iIn the cell the concentration of a. NADe to NADM is high c. NADP+ and NADPH is equal d. NAD+ to NADPH is equal b. NADP to NADPH in igh 32. Which of the follawing produces a hydride ion? e. More than one is 33. Hydrolysis is energetically but dehydration react is energeticaly a. Unfavorable, favorable b. Faverable, unfavorable d. favorable, neutral 34. Detergents can be used to remove proteins from the plasma membrane. Which of the toñowing is not concerming detergents? a. They have one hydrophilic head and 2 hydrophobic tails b. They unsolubiline Apids They disrupt the plasma membrane d. c. More than one is correct 35. What structure gives animal cells a defined structure a. Cell membrane b. Cell wall d. cortexExplanation / Answer
23. Second law of thermodynamics states that b. entropy increases when a reaction takes place. According to this law the entropy of the universe is always increasing. There is a tendency of the molecules to be less disciplined. So, after any reaction, the entropy of universe is always increased.
24. Enzyme catalyzed reactions generally a. generate a metabolic pathway. Enzymes are known as bio-catalists. The can regulate the kinetics of a reaction in a metabolic pathway.
25. The catalised pathway in a reaction mechanism has lower activation energy and thus causes a higher reaction rate. As the activation energy becomes lower, so the energy barrier for the reaction is overcomed easily. As the reaction time becomes shorter due to lower activation energy so the reaction rate will be higher. The correct option is b here.
26. Plants convert solar energy into chemical bond energy and animals convert chemical bond energy into heat energy. We all know that at the time of photosynthesis chlorophylls are activated by solar energy and this solar energy is stored in the glucose by means of chemical bond energy. Animals intake this food and break the chemical bonds of the food molecules and generate heat at the time of cellular respiration. The correct option is a here.
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