TLS Online TPP Program

#Question id: 11133


Which of the following statements accurately describes a feature of temperature sensation by the nervous system?

#I Life Science/ Life Sciences Group – I-V
  1. Cold receptors continue to be activated even if skin temperature is lowered well below its freezing point
  2. Both cold and warm receptors each have very specific, nonoverlapping ranges of temperature sensitivity
  3. Warm and cold receptors respond to both steady state temperatures and to changes in temperature
  4. Temperature receptor function is the result of ion conduction changes and not changes in their metabolic rate
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TLS Online TPP Program

#Question id: 556

#I Life Science/ Life Sciences Group – I-V

Which of the following statement is correct to calculate the turnover number of an enzyme,

A) the enzyme concentration.

B) the initial velocity of the catalyzed reaction at [S] >> Km.

C) the initial velocity of the catalyzed reaction at low [S].

D) the Km for the substrate.

TLS Online TPP Program

#Question id: 10507

#I Life Science/ Life Sciences Group – I-V

Rhizobacteria function as

 a) Nitrogen fixation

 b) depositing pathogens directly into the vascular system,

 c) producing antibiotics and antifungal agents for inhibiting soil pathogens

 d) herbivore sensors by sending electrical or chemical signals to surrounding cells

 Which one of the following combination is correct?

TLS Online TPP Program

#Question id: 9242

#SCPH06 I Botany

Eutrophication is often caused by excess limiting-nutrient runoff from agricultural fields into aquatic ecosystems. This process results in massive algal blooms that eventually die and decompose, ultimately depleting the dissolved oxygen, killing large numbers of fish and other aquatic organisms. Predict which of the following human actions would best address the problem of eutrophication near agricultural areas?

TLS Online TPP Program

#Question id: 1653

#I Life Science/ Life Sciences Group – I-V

Which of the following statements does NOT apply to IgG?

TLS Online TPP Program

#Question id: 14695

#SCPH06 I Botany

From a bag containing 4 white and 5 black balls a man draws 3 at random. Then the probability that all 3 are black is