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TLS Online TPP Program

#Question id: 9590

The efficiency of energy transfer between the two tuning forks depends on their distance from each other and their relative orientation, as well as on their vibrational frequencies, or pitches, Energy transfer in antenna complexes is usually very efficient;

#Unit 6. System Physiology – Plant
  1. The electron transfer is a purely physical phenomenon, energy transfer involves chemical (redox) reaction
  2. Approximately 95 to 99% of the photons absorbed by the antenna pigments have their energy transferred to the reaction centre, where it can be used for photochemistry
  3. The efficiency of energy is measure in terms of the fraction of absorbed photons that engage in photochemistry
  4. Approx. 2 to 10% of the overall energy transfer efficiency per photon, including all loss processes and considering the entire solar spectrum as energy source, is significantly lower
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TLS Online TPP Program

#Question id: 11544

#Unit 7. System Physiology – Animal

When a steroid hormone and a polypeptide hormone exert similar effects on a population of target cells, then ________.
TLS Online TPP Program

#Question id: 12234

#Unit 10. Ecological Principles

All of the following have been used by plants to avoid being eaten except
TLS Online TPP Program

#Question id: 12570

#Unit 10. Ecological Principles

Extinction is a natural phenomenon. It is estimated that 99% of all species that ever lived are now extinct. Why then do we say that we are now in a biodiversity crisis?
TLS Online TPP Program

#Question id: 11972

#Unit 7. System Physiology – Animal

The active ingredient orlistat acts to decrease the amount of fat that is absorbed by attaching to enzymes that digest fat. Which of the following are potential targets of orlistat?
TLS Online TPP Program

#Question id: 4185

#Unit 3. Fundamental Processes

Which of the following is mismatched?