Telomeres form a looped structure in the cell called as t-loop

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#Id: 10143

#Unit 6. System Physiology – Plant

Phototropism Is Mediated by the Lateral Redistribution of Auxin

In response to a directional light stimulus, the auxin produced at the tip, instead of being transported basipetally, is transported laterally toward the shaded side. Two flavoproteins, phototropins 1 and 2, are the photoreceptors for the blue-light signaling pathway that induces phototropic bending in Arabidopsis

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#Id: 9267

#Unit 6. System Physiology – Plant

Diazotrophs are able to catalyze the enzymatic reduction of this compound to ammonia (NH3) using the enzyme nitrogenase

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#Id: 2662

#Unit 7. System Physiology – Animal

The tubular fluid that leaves the thick ascending limb has a lower Na+ concentration and a lower osmolarity than blood.

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#Id: 5458

#Unit 7. System Physiology – Animal

The number of Na + channels along the axons of unmyelinated neurons, is about 110.

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#Id: 9268

#Unit 6. System Physiology – Plant

Nitrogenase is a complex consisting of the MoFe protein (dinitrogenase or component I) a heterotetramer, and the Fe protein (dinitrogenase reductase or component II) a homodimer.