Question
Which one of the following micro-organism oxidizes
nitrite to nitrate?Solution
Nitrobacter is a genus of bacteria that belongs to the Nitrospiraceae family. They are known for their ability to perform nitrification, which involves the oxidation of nitrite (NO2-) to nitrate (NO3-). Nitrosomonas, on the other hand, is responsible for the oxidation of ammonia (NH3) to nitrite in the nitrification process. Azotobacter and Clostridium are not directly involved in nitrification.
- In a school election between two contestant’s 'A' and 'B', 'A' secured 62% of the total votes and won by 7,440 votes. Find how many votes 'B' got.?
490 sweets were distributed equally among children in such a way that the number of sweets received by each child is 40% of the total number of children...
Sachin allocates 40% of his monthly income to his studies. From what remains, he spends 35% on food. After these expenses,he saves Rs. 1560 each month. ...
Mohan goes to a sports shop with some money. He can buy 100 footballs or 50 basketballs with the money with him. However, instead of spending the entire...
A man spends 40% of his income on household items, 30% on buying gifts and 50% of the remaining on transportation. If he is left with Rs. 3900 then how...
In a small town, 50% of the people like fishing, 70% like hiking, and 30% like both. If the remaining 21 people don't like either activity, how many peo...
- A coaching institute had 4800 students in 2019, out of which 55% were boys and the rest were girls. In 2020, the number of boys rose by 20% and the number ...
Ajay goes to a grocery store with a certain amount of money. He can buy 80 apples or 40 bananas with the money he has. However, he decides to save 5% of...
The combined salaries of 'Arvind' and 'Bhanu' amount to Rs. 20,000. 'Arvind' utilized 80% of his salary, while 'Bhanu' spent 60% of his salary, resultin...
A retailer buys three types of Rice bags at ₹60, ₹40 and ₹20 per kg respectively. He mixes them in the ratio of 1:2:3 by weight and sold them at a...