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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: 31359

#Unit 13. Methods in Biology

Which of the following microscopy uses photoswitchable fluorophores that can be switched between a "on" (fluorescent) and "off" (dark) state, allowing only a small subset of molecules to be illuminated at a time, enabling precise localization of each individual molecule.
TLS Online TPP Program

#Question id: 31360

#Unit 3. Fundamental Processes

Histone deacetylase belongs to the class of 
TLS Online TPP Program

#Question id: 31361

#Unit 6. System Physiology – Plant

Nonphotochemical quenching in plants results in 
TLS Online TPP Program

#Question id: 31362

#Unit 6. System Physiology – Plant

Structural domains and motifs in the intracellular immune receptors in plants are made up of
TLS Online TPP Program

#Question id: 31363

#Unit 6. System Physiology – Plant

The mitochondria of brown adipocytes uniquely contains
TLS Online TPP Program

#Question id: 31364

#Unit 2. Cellular Organization

In replicative transposition which of the following enzyme plays differential role