Each cardiac cycle is initiated by spontaneous generation of an action potential in the sinus node.

TLS Online TPP Program

#Id: 6065

#Unit 10. Ecological Principles

BIOGEOGRAPHIC CLASSIFICATION OF INDIA

Our country can be conveniently divided into ten major regions, based on the geography, climate and pattern of vegetation seen and the communities of mammals, birds, reptiles, amphibia, insects and other invertebrates that live in them.

TLS Online TPP Program

#Id: 10232

#Unit 6. System Physiology – Plant

In the presence of brassinolide, the activated phosphatase BSU1 dephosphorylates BIN2 and promotes its degradation by the 26S proteasome system, thus blocking its activity. BES1 and BZR1

are then dephosphorylated by PROTEIN PHOSPHATASE2A

(PP2A), and the active forms of BES1 and BZR1 move into the nucleus where they regulate the expression of brassinolide response genes

TLS Online TPP Program

#Id: 4246

#Unit 12. Applied Biology

Serum in culture media regulates cell membrane permeability and serves as a carrier for lipids, enzymes, micronutrients, and trace elements into the cell. 

TLS Online TPP Program

#Id: 7116

#Unit 6. System Physiology – Plant

ABA (C15) biosynthesis takes place in chloroplasts and cytosol from C40 precursor

ABA closes stomata in response to water stress

ABA promotes root growth and inhibits shoot growth at low water potentials

TLS Online TPP Program

#Id: 1051

#Unit 5. Developmental Biology

Homeobox transcription factors, or Hox genes, play an essential role in specifying whether a particular mesenchymal cell will become stylopod, zeugopod, or autopod.