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TLS Online TPP Program

#Id: 9235

The C4 pathway, involving mesophyll cells and bundle-sheath cells, predominates in plants of tropical origin. 

#Unit 6. System Physiology – Plant #CO2 fixation-C3, C4 and CAM pathways #Part B Pointers
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TLS Online TPP Program

#Id: 4029

#Unit 7. System Physiology – Animal

The effects of the autonomic nervous system on heart rate are called chronotropic effects
TLS Online TPP Program

#Id: 4030

#Unit 7. System Physiology – Animal

Positive chronotropic effects are increases in heart rate.
TLS Online TPP Program

#Id: 4031

#Unit 7. System Physiology – Animal

Negative chronotropic effects are decreases in heart rate.
TLS Online TPP Program

#Id: 4032

#Unit 7. System Physiology – Animal

Stimulation of the sympathetic cardiac nerves speeds the depolarization in SA node.
TLS Online TPP Program

#Id: 4034

#Unit 7. System Physiology – Animal

The rate of spontaneous discharge increases Norepinephrine secreted by the sympathetic endings binds to β1 receptors
TLS Online TPP Program

#Id: 4035

#Unit 7. System Physiology – Animal

Increase in intracellular cAMP facilitates the opening of L channels, increasing ICa and the rapidity of the depolarization phase of the impulse.