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TLS Online TPP Program

#Question id: 9234

What is a critical load?

#Unit 9. Diversity of Life Forms
  1. the amount of nutrient augmentation necessary to bring a depleted habitat back to its former level
  2. the level of a given toxin in an ecosystem that is lethal to 50 percent of the species present
  3. the amount of added nutrient that can be absorbed by plants without damaging ecosystem integrity

  4. the number of predators an ecosystem can support that effectively culls prey populations to healthy levels

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TLS Online TPP Program

#Question id: 2238

#Unit 2. Cellular Organization

Consider the transport of glucose into an erythrocyte by facilitated diffusion.  When the glucose concentrations are 5 mM on the outside and 0.1 mM on the inside, the free-energy change for glucose uptake into the cell is:  (These values may be of use to you:  R = 8.315 J/mol·K; T = 298 K; 9 (Faraday constant) = 96,480 J/V; N = 6.022×10²³ /mol.)
TLS Online TPP Program

#Question id: 13028

#Unit 13. Methods in Biology

The Vir gene responsible for transcription of other vir genes needed for ssDNA synthesis and endonuclease activity and transport to the plant cell is –
TLS Online TPP Program

#Question id: 26548

#Unit 3. Fundamental Processes

Cytoplasmic P bodies are associated with
TLS Online TPP Program

#Question id: 163

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of the following statements about cystine is correct?
TLS Online TPP Program

#Question id: 26550

#Unit 3. Fundamental Processes

Choose which of the following statement is correct  
a. Ribosomes PTC do  not remove EJC
b. Stalled EJC recruits Upf
c. Upf recruits 5’-3’ decapping & 3’-5’ deadynylation 
d. Finally mRNA is decayed in NMD process