Answer:
B
Explanation:
Pheromones a chemical substance produced and released into the environment by an animal, especially a mammal or an insect, affecting the behaviour or physiology of others of its species.
Distance/Time = 120 Km/2 hours =120/2 Km per hour or for short 60 Km per hour
Answer:
Cellular reactions are made spontaneous by C coupling with ATP breakdown to ADP.
Explanation:
ATP is an energy rich compound.ATP undergo hydrolysis to generate high amount of free energy.
The free energy of ATP hydrolysis is used to make a non spontaneous reaction or thermodynamically unfavorable reaction to thermodynamically favorable manner.
Thus the cellular reactions are made spontaneous by coupling with ATP breakdown to ADP.
The answer is cornea…..lens. Most bending of light entering
the eye is bent by the cornea. The lens of the other hand adjusts this bending
further, to focus it squarely on the retina. This is why the focal point of the
lens can be adjusted by changing its shape.
Answer:
1. Aspartate and PRPP
2. Aspartate, glycine and glutamine
Explanation:
Aspartate is a precursor in both the synthesis of purine and pyrimidine. It aids in the formation of Carbamoyl Aspartate in pyrimidine synthesis while in purine, it contributes nitrogen 1 to the purine ring. PRPP is needed in the activation of ribose sugar in the purine nucleotide synthesis, while in that of pyrimidine, it aids in the conversion of orotate to OMP by adding phosphate group to orotate.
Aspartate, glycine and glutamine are precursors in the de novo synthesis of purine nucleotides. Aspartate contribts nitrogen 1, glycine cotributes C4, C5 and nitrogen 7 while glutamine contributes N3 and N9.
