Answer:
Humans are responsible for the environmental pollution in many ways . Some of the points are as follows :
1 ) People throw the wastes wherever they like instead of using dustbins .
2 ) The various types of gases from the industries which harms the nature .
3 ) Cutting off the trees . ( people can cut but also must plant a new one )
4 ) Farmers using different chemical substances in high amount in the crops .
5 ) Burning plastics , tires etc .
This was my way to answer the question , if you need then you can write in paragraph .
let me know if its incorrect . :-)
Answer:
When the test culture was removed from the incubator and there was gas bubble in it.The gas bubble produced from the test tube is nitrogen. But if the addition of the zinc and other reagent in the culture and there is no response.
It suggest that the nitrates is being used by the bacteria. The bacteria inside can be aerobic and facultative anaerobic.
They can be gram negative microorganism and yes the occurrence states that the test was successful if the test was about facultative anaerobic and aerobic.
1.Tt
2.tt
3.Tt
4.tt
HOPE IT HELPS YOU '_'
Answer:
Optimum pH= 6
Optimum pH for the given enzyme would be the average of pKa values of two amino acids (2.9 + 9.1 /2= 6)
Explanation:
The pKa represents the association constant of amino acids. It is calculated by taking the negative log value of the ratio of a dissociated acid and the conjugated base which in turn regulates the isoelectric point (pI) of the protein.
The amino acids present in the active site of the enzyme regulate the interaction of enzyme and substrate. The given enzyme contains two ionizable amino acids with pKa values of 2.9 and 9.1 respectively. Therefore, the optimum pH of the given enzyme would be 2.9 + 9.1 / 2 = 12/2 = 6.
At pH 6, both the ionizable amino acids would serve as a good buffer with their active proton donor and proton acceptor species.
