TLS Online TPP Program

#Question id: 125


Regions on cell membranes called lipid rafts form because

#Section 2: General Biology
  1. membrane proteins form them.

  2. cholesterol preferentially associates with sphingolipids.

  3. certain membrane protein patches aggregate.

  4. cholesterol and proteins bind to form them.

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TLS Online TPP Program

#Question id: 405

#Section 4: Fundamentals of Biological Engineering

When a mixture of glucose 6-phosphate and fructose 6-phosphate is incubated with the enzyme phosphohexose isomerase (which catalyzes the interconversion of these two compounds) until equilibrium is reached, the final mixture contains twice as much glucose 6-phosphate as fructose 6-phosphate.  Which one of the following statements is best applied to this reaction outlined below? (R = 8.315 J/mol·K; T = 298 K) Glucose 6-phosphate -> fructose 6-phosphate

TLS Online TPP Program

#Question id: 406

#Section 2: General Biology

Hydrolysis of 1 M glucose 6-phosphate catalyzed by glucose 6-phosphatase is 99% complete at equilibrium (i.e., only 1% of the substrate remains). Which of the following statements is most nearly correct? (R = 8.315 J/mol·K; T = 298 K)

TLS Online TPP Program

#Question id: 406

#Section 4: Fundamentals of Biological Engineering

Hydrolysis of 1 M glucose 6-phosphate catalyzed by glucose 6-phosphatase is 99% complete at equilibrium (i.e., only 1% of the substrate remains). Which of the following statements is most nearly correct? (R = 8.315 J/mol·K; T = 298 K)

TLS Online TPP Program

#Question id: 407

#Section 2: General Biology

The reaction A + B -> C has a DG'° of –20 kJ/mol at 25° C.  Starting under standard conditions, one can predict that:

TLS Online TPP Program

#Question id: 407

#Section 4: Fundamentals of Biological Engineering

The reaction A + B -> C has a DG'° of –20 kJ/mol at 25° C.  Starting under standard conditions, one can predict that:

TLS Online TPP Program

#Question id: 408

#Section 2: General Biology

Which of the following compounds has the largest negative value for the standard free-energy change (DG'°) upon hydrolysis?