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TLS Online TPP Program

#Question id: 542

Hamsters love to run on exercise wheels. Prolonged running at a high rate of speed requires ATP. Could a hamster with a defective gene for the enzyme lactate dehydrogenase meet the extra ATP demand for prolonged, fast wheel-running by maintaining a high rate of glycolysis? Why or why not?

#Unit 1. Molecules and their Interaction Relevant to Biology

  1. No, not enough NAD+ can be regenerated for glycolysis to continue at a high rate.

  2. No, the defective gene will cause a rapid decline in pH in the muscles used for running.

  3. Yes, the defective enzyme has no effect on the glycolytic pathway.

  4. Yes, the enzyme alcohol dehydrogenase will supply the needed NAD+ if the lactose dehydrogenase cannot.

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TLS Online TPP Program

#Question id: 12237

#Unit 10. Ecological Principles

Which of the following occurred first during the separation of the elements of Pangaea through continental drift? 
TLS Online TPP Program

#Question id: 24569

#Unit 10. Ecological Principles

Geometric and the exponential growth both are describe by 
a. similar mathematical models
b. slightly different mathematical models
c. similar  J-shaped growth curve
d. similar S-shaped growth curve
TLS Online TPP Program

#Question id: 27557

#Unit 1. Molecules and their Interaction Relevant to Biology

Name the amino acid which is associated with C2H2 zinc finger
TLS Online TPP Program

#Question id: 12331

#Unit 10. Ecological Principles

The species richness of a community refers to the
TLS Online TPP Program

#Question id: 10238

#Unit 10. Ecological Principles

The diagram below shows the frequency distribution of two closely related bird species based on their resource use in sympatric. Which one of the following phenomena most appropriately explains the change in frequency distributions of species 1 and 2 in the figure given above?