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TLS Online TPP Program

#Question id: 28053

The most important parameter relating to the energy of an H-bond in protein structure is 

#Unit 1. Molecules and their Interaction Relevant to Biology
  1. whether it is found in an a-helix or a b-sheet
  2. the angle between donor and accepter, i.e. 180° +/- 20°.
  3. the distance between donor and accepter, i.e. <3.2Å.
  4. the peptide bond dipole, i.e. - 3.70 D
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TLS Online TPP Program

#Question id: 11539

#Unit 7. System Physiology – Animal

Aspirin and ibuprofen both ________.
TLS Online TPP Program

#Question id: 2240

#Unit 2. Cellular Organization

 In which of the following cases is energy NOT needed for transmembrane transport?

a. Lysine moves into the cell against its concentration gradient via the Na+/lysine symporter.

b. Potassium ions (K+) move out of the cell down the K+ concentration gradient via potassium channels.

c. Glucose moves into the cell down its concentration gradient via a glucose uniporter.

d. Sodium ions (Na+) move out of the cell down the Na+ concentration gradient via sodium channels.

Which of the following are correct?
TLS Online TPP Program

#Question id: 27153

#Unit 4. Cell Communication and Cell Signaling

The receptor for adrenaline is a
TLS Online TPP Program

#Question id: 15233

#Unit 13. Methods in Biology

Low-percentage acrylamide gels are also used to separate
A) Large DNA
B) Large proteins
C) Large RNA
D) All DNA, Proteins, RNA
TLS Online TPP Program

#Question id: 2610

#Unit 2. Cellular Organization

Binding of RNA polymerase over promoter synthesizes