#Question id: 7294
#Unit 5. Developmental Biology
Multiple factors regulate flowering in Arabidopsis. FT mRNA is expressed in companion cells of the leaf vein in response to multiple signals, including day length, light quality, and temperature. FT moves in the phloem from leaves to the apical meristem. FT is unloaded from the phloem in the meristem and interacts with FD.
FT-FD complex activates multiple genes. Which of the following combination is correct?(SS)
#Question id: 12543
#Unit 10. Ecological Principles
Use Figure to answer the following questions. Examine this food web for a particular terrestrial ecosystem. Each letter is a species. The arrows represent energy flow.
Which species is most likely an omnivore?
#Question id: 10299
#Unit 6. System Physiology – Plant
The stages of respiration take place within an organelle enclosed by a double membrane, the mitochondrion. Which of the following processes occur only inside the mitochondria?
#Question id: 9591
#Unit 6. System Physiology – Plant
In light reaction, the funneling of excitation from the antenna system toward the reaction centre has been shown,
a.) The excited-state energy of pigments increases with distance from the reaction centre; that is, pigments closer to the reaction centre are lower in energy than those farther from the reaction centre
b.) The energy gradient ensures that excitation transfer toward the reaction centre is energetically favorable and that excitation transfer back out to the peripheral portions of the antenna is energetically unfavourable
c.) Some energy is lost as heat to the environment by this process, but under optimal conditions almost all the excitation energy absorbed in the antenna complexes can be delivered to the reaction centre
d.) The excited-state energy of pigments decreases with distance from the reaction centre
Which of the following above combination is true?
#Question id: 11154
#Unit 9. Diversity of Life Forms
Concerning growth in genome size over evolutionary time, which of these does not belong with the others?