TLS Online TPP Program

#Question id: 1306


In plant cells, the middle lamella:

#Unit 4. Cell Communication and Cell Signaling
  1. glues adjacent cells together

  2. prevents dehydration of adjacent cells

  3. connects the cytoplasm of adjacent cells

  4. prevents excessive uptake of water by plant cells

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TLS Online TPP Program

#Question id: 10636

#Unit 10. Ecological Principles

The demographic transition model depicts demographic changes from high- to low-level births and deaths in five stages


Stage 1 is characterized by total population numbers are low and the high birth rate is balanced by the high death rate.

B) Stage 2 is characterized by high population growth rate is results of high birth rate however, decline death rate

C) Stage 4 is characterized by decline in the proportion of the population in the reproductive age group and these changes stabilizes population size

D) Stage 3 is characterized by falling birth rates and death rates and population growth rate is zero due to the less numbers of people in the reproductive age group

TLS Online TPP Program

#Question id: 11796

#Unit 7. System Physiology – Animal

Which of the following hormones is largely unbound to plasma proteins?

TLS Online TPP Program

#Question id: 10357

#Unit 6. System Physiology – Plant

Why the glutamine and glutamate will not be transported while  asparagine will prefer to be transported?

TLS Online TPP Program

#Question id: 5057

#Unit 5. Developmental Biology

The major factor which is important in providing the competence for the ectoderm to respond to the inducers from the optic cup-

TLS Online TPP Program

#Question id: 34149

#Unit 7. System Physiology – Animal

A scientist finds that infusion of growth hormone into the median eminence of the hypothalamus in experimental animals inhibits the secretion of growth hormone and concludes that this proves that growth hormone feeds back to inhibit GHRH secretion. Do you accept this conclusion?