TLS Online TPP Program

#Question id: 9220


Which of the following factors could cause the largest increase in the effective population size of a species?

#Unit 9. Diversity of Life Forms
  1. an increased number of males
  2. an increase in the total population size
  3. an increase in the number of breeding males and females
  4. an increased number of females
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TLS Online TPP Program

#Question id: 9276

#Unit 6. System Physiology – Plant

The carotenoid b-carotene, whose structure and absorption spectrum at,

TLS Online TPP Program

#Question id: 9273

#Unit 6. System Physiology – Plant

In the higher excited state, chlorophyll is extremely unstable; it rapidly gives up some of its energy to the surroundings as heat, and enters the lowest excited state, the excited chlorophyll has four alternative pathways for disposing of its available energy: fluorescence, Heat loss, energy transfer, photochemistry; all process takes place in which wavelength,

TLS Online TPP Program

#Question id: 9272

#Unit 6. System Physiology – Plant

The quantum yield of photosynthesis falls off drastically for far-red light of wavelengths greater than 680 nm, indicating that far-red light alone is inefficient in driving
photosynthesis, this effect is called

TLS Online TPP Program

#Question id: 9270

#Unit 6. System Physiology – Plant

In the lowest excited state, the excited chlorophyll has four alternative pathways for disposing of its available energy which of the statement of alternative pathway would be INCORRECT?

TLS Online TPP Program

#Question id: 9269

#Unit 6. System Physiology – Plant

The distribution of electrons in the excited molecule is somewhat different from the distribution in the groundstate molecule, Absorption of blue light excites the chlorophyll to a higher energy state than absorption of red light because

TLS Online TPP Program

#Question id: 11538

#Unit 7. System Physiology – Animal

Prostaglandins are local regulators whose chemical structure is derived from ________.