TLS Online TPP Program

#Question id: 406


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)

#Unit 1. Molecules and their Interaction Relevant to Biology
  1. DG'° = –11 kJ/mol

  2. DG'° = –5 kJ/mol

  3. DG'° = 0 kJ/mol

  4. DG'° = +11 kJ/mol

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TLS Online TPP Program

#Question id: 12075

#Unit 7. System Physiology – Animal

A 48-year-old woman complains of severe polyuria (producing about 0.5 L of urine each hour) and polydipsia (drinking two to three glasses of water every hour). Her urine contains no glucose, and she is placed on overnight water restriction for further evaluation. The next morning, she is weak and confused, her sodium concentration is 160 mEq/L, and her urine osmolarity is 80 mOsm/L. Which of the following is the most likely diagnosis?

TLS Online TPP Program

#Question id: 13228

#Unit 6. System Physiology – Plant

Classification of plant mineral nutrients according to biochemical function

          

                  Mineral nutrient

 

                       Functions

 

      A.)  Silicon(Si)

 

     1.)    Constituent of alcohol dehydrogenase, glutamic dehydrogenase, carbonic anhydrase, etc

     B.)  Manganese(Mn)

     2.)    Component of sugar phosphates, nucleic acids, nucleotides, coenzymes, phospholipids, phytic acid, etc. Has a key role in reactions that involve ATP

      C.)  Zinc(Zn)

     3.)    Contributes to cell wall mechanical properties, including rigidity and elasticity.

 

      D.)  Phosphorous(P)

     4.)    Component of ascorbic acid oxidase, tyrosinase, monoamine oxidase, uricase, cytochrome oxidase, phenolase, laccase, and plastocyanin.

      E.)   Copper(Cu)

     5.)    Required for activity of some dehydrogenases, decarboxylases, kinases, oxidases, and peroxidases. Involved with other cation-activated enzymes and photosynthetic O2 evolution


Which of the following combination is correct?

TLS Online TPP Program

#Question id: 4132

#Unit 3. Fundamental Processes

In E. coli, aminoacyl-tRNA synthetases:

TLS Online TPP Program

#Question id: 28848

#Unit 2. Cellular Organization

A protein is accelerating polymerization of microtubule, by binding with free tubulin subunits, that protein is____

TLS Online TPP Program

#Question id: 4700

#Unit 11. Evolution and Behavior

Which of the following is not an observation or inference on which natural selection is based?