Energy

Quiz Content

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. The body performs many processes which depend upon energy and could not occur without a supply of ATP. How does the energy from ATP power the cellular reactions?

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. Suppose that you determined ΔG for a reaction at room temperature, and then carried out the same reaction at a higher temperature. At higher temperatures, ΔG for a the reaction will be:

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. If someone not familiar with scientific language asked you to explain entropy in one word, the best word would be:

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. The first law of thermodynamics can be stated as the common saying:

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. The second law of thermodynamics states that:

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. Which of the following would you expect to have a high phosphate group transfer potential?

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. Which of the following is not a form of energy:

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. Using the following table of free energies:
ATP C> ADP + Pi ΔG = -7.3 kcal/mol
Glucose-1-phosphate C> Glucose + Pi ΔG = - 5.0 kcal/mol
Find the free energy change for the reaction: Glucose + ATP B B ? Glucose-1-phosphate + ADP

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. Convert 652 calories to kJ:

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. ΔG for an exothermic reaction is:

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. Throughout the centuries, charlatans have claimed to have invented a perpetual-motion machine, one which runs continually with no input of energy. Which law shows that such a machine is impossible?

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. When we digest food and use it to produce energy, we convert a few large, complex molecules into many small, simple molecules. Under these circumstances,

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. Respiration may be represented by the reaction: C6H12O6 + 6 O2 □ 6 CO2 + 6 H2O
ΔH for the overall reaction is 2802.1 kJ/mol. Photosynthesis is the reverse: 6 CO2 + 6 H2O □ C6H12O6 + 6 O2
ΔH for the overall reaction of photosynthesis is:

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. You can freeze milk to make ice cream by mixing ice and salt. The resulting mixture of ice and salt has a very low temperature because:

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. As living things consume nutrients and digest them, the entropy of the living thing itself:

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. If ΔH for a certain reaction is negative:

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. Suppose that you wound a spring tightly, clamped it so that it could not unwind, and then placed the spring in acid, dissolving it without unwinding. The energy stored in the spring:

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. The caloric content of food is usually given in large calories, or Calories. One Calorie is equal to 1000 calories, or 1 kilocalorie. The basal metabolic rate for men is 24 Calories/kg. What is the BMR for a 70 kg man?

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. A human being needs a mass of ATP nearly equivalent to his or her own body mass daily. What process allows a ready supply of ATP for cellular reactions?

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. Which of the following is an endergonic process?

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. Physiological reactions take place under extreme conditions and are carefully controlled. Researchers are interested in biochemical reactions which take place at very high temperatures, as they may be especially useful in:

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