Practice Questions

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

The electron transfer is a purely physical phenomenon, energy transfer involves chemical (redox) reaction
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
The efficiency of energy is measure in terms of the fraction of absorbed photons that engage in photochemistry
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: 11186

#Unit 1. Molecules and their Interaction Relevant to Biology

Refer to the following graph of an action potential to answer the question. The membrane potential is closest to the equilibrium potential for potassium at label ________.

TLS Online TPP Program

#Question id: 176

#Unit 1. Molecules and their Interaction Relevant to Biology

A peptide has the sequence Glu–His–Trp–Ser–Gly–Leu–Arg–Pro–Gly. What is the net charge of the molecule at pH 3

TLS Online TPP Program

#Question id: 27060

#Unit 1. Molecules and their Interaction Relevant to Biology

Choose the incorrect statement out of the followings

TLS Online TPP Program

#Question id: 27061

#Unit 1. Molecules and their Interaction Relevant to Biology

According to the Fischer projection which of the following is correct regarding the given fig.