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TLS Online TPP Program

#Question id: 10574

Which of the following statements about the evolution of life histories is correct?

#Unit 10. Ecological Principles
  1. Stable environments with limited resources favor r-selected populations.
  2. K-selected populations are most often found in environments where density-independent factors are important regulators of population size.
  3. Most populations have both r- and K-selected characteristics that vary under different environmental conditions.
  4. The reproductive efforts of r-selected populations are directed at producing just a few offspring with good competitive abilities
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TLS Online TPP Program

#Question id: 33

#Unit 1. Molecules and their Interaction Relevant to Biology

Use the following figure to answer the question. The figure shows the structures of glucose and fructose. These two molecules differ in the
TLS Online TPP Program

#Question id: 16122

#Unit 7. System Physiology – Animal

Fever is an abnormal elevation of body temperature. Following statements are regarding to the cellular mechanism of fever.
A. Pyrogens produce fever by increasing the hypothalamic set-point temperature.
B. the mechanism of pyrogen action is increased production of interleukin-1 (IL-1) in phagocytic cells.
C. IL-1 then acts on the anterior hypothalamus to increase local production of prostaglandins, which increase the set-point temperature.
D. IL-1 then acts on the posterior hypothalamus to increase local production of prostaglandins, which increase the set-point temperature.
E. IL-1 then acts on the posterior hypothalamus to increase local production of prostaglandins, which decrease the set-point temperature.
Which of the following combination is correct?
TLS Online TPP Program

#Question id: 14145

#Unit 6. System Physiology – Plant

Which of the following spot is inhibted by Antimycin A
TLS Online TPP Program

#Question id: 12391

#Unit 6. System Physiology – Plant

Which of the following processed are involve in cell enlargement in plant?
a) Osmotic uptake of water across the plasma membrane is driven by the gradient in water potential (∆Yw)
b) Turgor pressure builds up because of the rigidity of the cell wall
c) Biochemical wall loosening occurs, allowing the cell to expand in response to turgor pressure
TLS Online TPP Program

#Question id: 1293

#Unit 4. Cell Communication and Cell Signaling

NCAMs, a group of cell-adhesion proteins belonging to the Ig superfamily. Which of the following is not a property of NCAM?