TLS Online TPP Program

#Question id: 4961


An early consequence of the release of oxygen gas by plant and bacterial photosynthesis was to

#SCPH28 | Zoology
  1. make life on land difficult for aerobic organisms.

  2. change the atmosphere from oxidizing to reducing.

  3. make it easier to maintain reduced molecules

  4. cause iron in ocean water and terrestrial rocks to rust (oxidize).

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TLS Online TPP Program

#Question id: 9198

#SCPH28 | Zoology

Tropical forests are being converted to farm or pasture land at an alarming rate, and one major focus is on the biodiversity and the impact to these ecosystems. What is a direct benefit to humans that helps explain why these forests need to be preserved?

TLS Online TPP Program

#Question id: 10887

#SCPH06 I Botany

What is a linkage density of community A and B RESPECTIVELY?


TLS Online TPP Program

#Question id: 10277

#SCPH05 I Biotechnology

Each of the nine glycolytic intermediates between glucose and pyruvate is phosphorylated. The phosphoryl groups seem to have many functions such as,

a) The plasma membrane generally lacks transporters for phosphorylated sugars, the phosphorylated glycolytic intermediates cannot leave the cell

b) After the initial phosphorylation, further energy is necessary to retain phosphorylated intermediates in the cell, despite the large difference in their intracellular and extracellular concentrations

c) Phosphoryl groups are essential components in the enzymatic conservation of metabolic energy, Energy released in the breakage of phosphoanhydride bonds is partially conserved in the formation of phosphate esters such as glucose 6-phosphate

d) Binding energy resulting from the binding of phosphate groups to the active sites of enzymes lowers the activation energy and increases the specificity of the enzymatic reactions

which of the following functions shows Importance of Phosphorylated Intermediates?

TLS Online TPP Program

#Question id: 4338

#SCPH01 Biochemistry

Altering patterns of gene expression in prokaryotes would most likely serve an organism's survival by __.

TLS Online TPP Program

#Question id: 1599

#SCPH28 | Zoology

Name the class of MHC which is recognized by CD4 TH cell.