Practice Questions

  1. Home
  2. Free Resources
  3. Practice Questions
  4. 37499
TLS Online TPP Program

#Question id: 27069

Choose the correct option regarding the stereochemistry of given compound 

#Unit 1. Molecules and their Interaction Relevant to Biology
  1. a is L-threonine is (2S, 3R) threonine, while b is D-threonine is (2R,3S) threonine
  2. a is L-threonine is (2S, 3R) threonine, while b is D-threonine is (2R,3S) threonine
  3. a is L-allothreonine is (2S,3S) threonine, while b is D-allothreonine is (2R,3R) threonine
  4. a is D-allothreonine is (2S,3S) threonine, while b is L-allothreonine is (2R,3R) threonine
More Questions
TLS Online TPP Program

#Question id: 12677

#Unit 10. Ecological Principles

Aquatic ecosystems that are most readily damaged by acid are those that lack an important buffer that dissolves into the runoff after a precipitation event. What is this buffer?
TLS Online TPP Program

#Question id: 1305

#Unit 4. Cell Communication and Cell Signaling

Ions can travel directly from the cytoplasm of one animal cell to the cytoplasm of an adjacent cell through:
TLS Online TPP Program

#Question id: 13169

#Unit 10. Ecological Principles

Which of the following causes Earth's seasons?
TLS Online TPP Program

#Question id: 14985

#Unit 4. Cell Communication and Cell Signaling

Neutrophills containing granules which have protease, protease inhibitors, for example
a) α-1 antitrypsin – regulation of proteases
b) Defensin – Direct harm to pathogen
c) Elastase –  Tissue remodelling
d) MBP – basophil degranulation
TLS Online TPP Program

#Question id: 15258

#Unit 2. Cellular Organization

Complex media contain components like