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TLS Online TPP Program

#Question id: 24213

Choose the incorrect statement

#Unit 1. Molecules and their Interaction Relevant to Biology
  1. The protein inhibitor of hexokinase IV is a nuclear binding protein that draws hexokinase IV into the nucleus when the fructose 6-phosphate concentration in liver is high and releases it to the cytosol when the glucose concentration is high.
  2. PFK-1 ATP inhibits PFK-1 by binding to an allosteric site and lowering the affinity of the enzyme for its substrate fructose 6-phosphate
  3. Hexokinase requires Mg+2 for its activity, because the true substrate of the enzyme is MgATP4- but not the MgATP2- complex.
  4. When the level of AMP increases, it promotes glycolysis by stimulating PFK-1 by inhibiting FBPase-1
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TLS Online TPP Program

#Question id: 12018

#Unit 10. Ecological Principles

The amount of energy entering a food chain depends on the
TLS Online TPP Program

#Question id: 12019

#Unit 10. Ecological Principles

Chickadees were given an opportunity to store seeds in 72 possible storage sites consisting of holes drilled in small trees that had been placed in an aviary. Typically, the seeds were placed in only 4 or 5 storage sites. The chickadees were then removed from the aviary, the seeds removed from the storage sites, and each hole covered. A day later, the chickadees were returned to the aviary and they spent nearly 5 times as long pulling at the covers on storage sites than at the covers on sites where they had not stored food. This experiment indicates that chickadees
TLS Online TPP Program

#Question id: 12020

#Unit 10. Ecological Principles

Bird species X stores seeds in a large number of separate caches in the summer and then locates the caches in the winter. Compared with a bird species that does not store seeds, species X can be expected to have a proportionately larger
TLS Online TPP Program

#Question id: 12021

#Unit 7. System Physiology – Animal

Nutrient-rich blood from the intestine is carried through the ________ to the liver.
TLS Online TPP Program

#Question id: 12022

#Unit 7. System Physiology – Animal

The bile salts ________.
TLS Online TPP Program

#Question id: 12023

#Unit 7. System Physiology – Animal

The absorption of fats differs from that of carbohydrates in that ________.