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TLS Online TPP Program
#Question id: 23833
#Unit 2. Cellular Organization
Which of the following is NOT a key determinant of Myosin II?
TLS Online TPP Program
#Question id: 11024
#Unit 7. System Physiology – Animal
A 55-year-old man has been diagnosed with Stokes-Adams syndrome. Two minutes after the syndrome starts to cause active blockade of the cardiac impulse, which of the following is the pacemaker of the heart?
TLS Online TPP Program
#Question id: 19296
#Unit 13. Methods in Biology
Which vectors carry the longest foreign DNA fragments?
TLS Online TPP Program
#Question id: 15755
#Unit 12. Applied Biology
Cybrids or cytoplasmic hybrids are cells or plants containing
TLS Online TPP Program
#Question id: 20274
#Unit 7. System Physiology – Animal
ADH has two actions, one on the kidney and the other on vascular smooth muscle, these actions are mediated by different receptors, different intracellular mechanisms, and different secondary messengers.
a. The major action of ADH is to increase the water permeability of principal cells in the late distal tubule and collecting duct.
b. The receptor for ADH on the principal cells is a V2 receptor, which is coupled to adenylyl cyclase via a Gs protein.
c. The second messenger is cAMP, via phosphorylation steps, directs the insertion of water channels, aquaporin 2 (AQP2), in luminal membranes.
d. The receptor for ADH on the principal cells is a V1 receptor, which is coupled to phospholipase C via Gq protein.
Which one of the following combination of above statements is correct?