1,25-dihydroxycholecalciferol stimulates the reabsorption of calcium & phophate ions from kidney.

TLS Online TPP Program

#Id: 4962

#Unit 6. System Physiology – Plant

Induction-Reversion Responses or, Low Fluence (LF) Responses

Examples include:

Light-sensitive seed germination;

Many seeds require light for germination (like lettuce), whereas others are inhibited by light (wild oats, Phacelia, Royal Paulownia). Phytochrome presumably stimulates GA synthesis/release which in turn, stimulates the mobilization of stored reserves

TLS Online TPP Program

#Id: 6308

#Unit 3. Fundamental Processes

RNA polymerase performs two proofreading functions on that growing transcript. 

The first of these is called pyrophosphorolytic editing. In this, the enzyme uses its active site, in a simple back-reaction, to catalyze the removal of an incorrectly inserted ribonucleotide, by reincorporation of PPi. The enzyme can then incorporate another ribonucleotide in its place in the growing RNA chain. Note that the enzyme can remove either correct or incorrect bases in this manner, but spends longer hovering over mismatches than matches, and thus removes the former more frequently.

TLS Online TPP Program

#Id: 5848

#Unit 10. Ecological Principles

Many restored habitats have greater biodiversity and ecosystem services than degraded habitats 

TLS Online TPP Program

#Id: 4023

#Unit 2. Cellular Organization

In most regions, the fibers are much less densely packed than in the mitotic chromosome. This material is called euchromatin. It has a relatively dispersed appearance in the nucleus and occupies most of the nuclear region.

TLS Online TPP Program

#Id: 2191

#Unit 10. Ecological Principles

Secondary succession