Answer:
Explanation:
In the structure of Nucleic acids the nucleobases (nucleotide and bases) are arranged is a specific form.This form of arrangement is called Base stacking.It simply refers to the bond formed between the adjacent bases.
These nitrogenous bases of (A,T,C.G) pairing in DNA are in planes in geometry.The bases planes stack with one another.This form of arrangement give rooms for more Van der Waals interactions in the plane of the bases.Although the Van der Waals are weak interactions,the bond ensure that these bases are braided or twisted together to give maximum energy,to maintain stability of the bases,and therefore of DNA structure
Therefore in water and other aqueous solution the stability of structure of DNA is enhanced by the base stacking,(coiling or twisting)with maximum van der waals interaction among the bases, than the hydrogen bonds formed between bases.Generally there are more stacking among G-C,than A-T,thus the former pairing contribute more the structural stability than the latter (A-T)
The lock-and-key mechanism was first proposed by Emil Fischer which described as the enzymatic reactions whereby an enzyme with a single substrate binds temporarily to form a substrate complex. Just like a lock and key the enzyme as the lock and the substrate as the key is said to fit together
Nuclear energy is generated by initiating a process called nuclear fission (the splitting of atoms). Very large atoms like Uranium are unstable and release a lot of energy when split apart. They also release neutrons which will then fly around and split up other uranium atoms, releasing more energy and more neutrons and the cycle continues. This chain reaction generates A LOT of energy. The energy is then used to heat up water into steam. The steam flows through pipes and into a turbine, spinning the turbine around (just like wind does to a wind mill). As the turbine spins around it powers a generator to create electricity, which can then be harnessed and distributed.
I think the carrier of protein is integral that can help in facilitated diffusion so the answer is b.Integral :)))
i hope this be helpful
