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TLS Online TPP Program

#Question id: 21418

Which one of the statements relating to properties and structures of two proteins is most appropriate?

#Unit 11. Bioinformatics
  1. Two proteins with very similar secondary structures will have similar stability
  2. Two proteins with very similar secondary structures will have similar tertiary structures
  3. Two proteins with very similar tertiary structures will be localized to similar compartments inside the cell
  4. Two proteins with very simple tertiary structures will have very similar secondary structures
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TLS Online TPP Program

#Question id: 56

#Unit 1. Structure and Function of Biomolecules

Trace elements are those required by an organism in only minute quantities. Which of the following is a trace element that is required by humans and other vertebrates, but not by other organisms such as bacteria or plants?
TLS Online TPP Program

#Question id: 57

#Unit 1. Structure and Function of Biomolecules

A(n) ________ has charge but negligible mass, whereas a(n) ________ has mass but no charge.
TLS Online TPP Program

#Question id: 58

#Unit 1. Structure and Function of Biomolecules

A covalent chemical bond is one in which ________.
TLS Online TPP Program

#Question id: 59

#Unit 1. Structure and Function of Biomolecules

Nitrogen (N) normally forms three covalent bonds with a valence of five. However, ammonium has four covalent bonds, each to a different hydrogen (H) atom (H has a valence of one). What do you predict to be the charge on ammonium?
TLS Online TPP Program

#Question id: 60

#Unit 1. Structure and Function of Biomolecules

Which of the following is true for the reaction?

3H2 + N2   2NH3
TLS Online TPP Program

#Question id: 61

#Unit 1. Structure and Function of Biomolecules

Which of the following correctly describes chemical equilibrium?