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TLS Online TPP Program

#Question id: 21250

A 56-year-old female was diagnosed with a tumor near the base of the skull, impinging on her optic tract. Which of the following statements about the central visual pathway is correct?

#7. System Physiology – Animal
  1. The fibers from each temporal hemiretina decussate in the optic chiasm, so that the fibers in the optic tracts are those from the temporal half of one retina and the nasal half of the other
  2. In the geniculate body, the fibers from the nasal half of one retina and the temporal half of the other synapse on the cells whose axons form the geniculocalcarine tract.
  3. Layers 2 and 3 of the visual cortex contain clusters of cells called globs that contain a high concentration of cytochrome oxidase.
  4. Complex cells have a preferred orientation of a linear stimulus and, compared to simple cells, are more dependent on the location of the stimulus within the visual field.
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TLS Online TPP Program

#Question id: 11141

#7. System Physiology – Animal

The operation of the sodium-potassium pump moves ________.
TLS Online TPP Program

#Question id: 9179

#9. Diversity of Life Forms

Which of the following types of organisms is likely to have the widest geographic distribution?
TLS Online TPP Program

#Question id: 12374

#10. Ecological Principles

The process in which pioneer species colonize a bare substrate such as rock, sand, or glacial till is known as
TLS Online TPP Program

#Question id: 3446

#11. Evolution and Behavior

Which of the following is least related to the others?
TLS Online TPP Program

#Question id: 757

#1. Molecules and their Interaction Relevant to Biology

_______________ a bacterial enzyme, uses the energy of ATP hydrolysis to introduce negative supercoiling into DNA hence removing positive supercoiling generated during replication.