The peptide bond is estimated to have 40% double bond character

TLS Online TPP Program

#Id: 9926

#Unit 4. Cell Communication and Cell Signaling

Influenza virus

Influenza are surrounded by an outer envelope, a lipid bilayer derived from the plasma membrane of the infected cell.

Viral specific Protein 

Hemagglutinin (HA) 

Neuraminidase (NA)

TLS Online TPP Program

#Id: 1585

#Unit 5. Developmental Biology

Ability to initiate a primitive streak is found throughout the marginal zone.

TLS Online TPP Program

#Id: 2724

#Unit 12. Applied Biology

TLS Online TPP Program

#Id: 771

#Unit 3. Fundamental Processes

During RNA transcript formation, DNA makes its 90° turn at the active site.

TLS Online TPP Program

#Id: 10282

#Unit 6. System Physiology – Plant

ABA causes stomata to close by reversing the accumulation of potassium salts in guard cells and inducing the conversion of sugars into starch. 

The resulting fall in solute concentration leads to loss of water from the guard cell into the apoplast by osmosis, a fall in guard cell turgor, and closing of the stomatal pore.