Practice Questions

  1. Home
  2. Free Resources
  3. Practice Questions
  4. 16368
TLS Online TPP Program

#Question id: 18222

Which event during the evolution of land plants probably made the synthesis of secondary compounds most beneficial? 

#Unit 9. Diversity of Life Forms
  1. the greenhouse effect present throughout the Devonian period 
  2. the reverse-greenhouse effect during the Carboniferous period 
  3. the association of the roots of land plants with fungi 
  4. the rise of herbivory
More Questions
TLS Online TPP Program

#Question id: 849

#Unit 1. Molecules and their Interaction Relevant to Biology

The rigidity of the peptide unit and the restricted set of allowed phi and psi angles limits the number of structures accessible to the unfolded form sufficiently to allow:-
TLS Online TPP Program

#Question id: 21129

#Unit 12. Applied Biology

Yeast fermentation are used for  glycerol production by___
TLS Online TPP Program

#Question id: 31181

#Unit 4. Cell Communication and Cell Signaling

The principal signaling receptor for Wnt proteins is Frizzled (Fz), which contains: 
TLS Online TPP Program

#Question id: 33334

#Unit 2. Cellular Organization

During one generation, all cellular constituents increase proportionally; cells are thus said to be in: 
a. Log phase
b. Lag phase
c. Balanced growth phase
d. Stationary Phase
TLS Online TPP Program

#Question id: 10809

#Unit 6. System Physiology – Plant

Sieve element sap is rich in sugars and other organic molecules, These molecules represent an energy investment for the plant. How their loss be prevented when sieve elements are damaged?