Smooth muscle contraction is regulated by the cycling of myosin II between on and off states.

     OR

Smooth muscle contraction is regulated by myosin regulatory light chain associated with the myosin II neck domain.

TLS Online TPP Program

#Id: 5071

#Unit 6. System Physiology – Plant

Auxin was the first growth hormone to be discovered in plants.

TLS Online TPP Program

#Id: 5072

#Unit 6. System Physiology – Plant

Auxin is required for viability

TLS Online TPP Program

#Id: 5073

#Unit 6. System Physiology – Plant

Required at some level more or less continuously

TLS Online TPP Program

#Id: 5074

#Unit 6. System Physiology – Plant

Experiment on coleoptile phototropism

TLS Online TPP Program

#Id: 5075

#Unit 6. System Physiology – Plant

Paál and Went experiment

TLS Online TPP Program

#Id: 5076

#Unit 6. System Physiology – Plant

A common feature of all active auxins is a molecular distance of about 0.5 nm between a fractional positive charge on the aromatic ring and a negatively charged carboxyl group.