Nitrogen Cycle
Trending Questions
Q.
The most abundant element present in plants is
Nitrogen
Carbon
Manganese
Iron
Q.
A peptide bond is formed by the process of
Dehydration
Amination
Deamination
Dehydration
Q.
What is the impact of human domination on the nitrogen cycle?
Q.
Select the matched ones:
(1)Nitrosomonas - Nitrite to nitrate
(2)Thiobacillus - Denitrification
(3)Nostoc– Free - living nitrogen-fixer
(4)Azotobacter - Anaerobic nitrogen-fixer
a and b only
c and d only
b and c only
b and d only
Q. Which among the following plants have root nodules containing nitrogen fixing bacteria Rhizobium?
- Gram
- Asparagus
- Ashwagandha
- Allium
Q.
Nitrate is converted into nitrogen gas by a process called denitrificaiton with the help of an organism called :
Pseudomonas
Clostridium
Nitrosomonas
Nitrobacter
Q.
Some bacteria live symbiotically inside root nodules of higher plants. The basic activity of these bacteria is associated with
Some bacteria live symbiotically inside root nodules of higher plants. The basic activity of these bacteria is associated with
- carbon cycle
- water cycle
- oxygen cycle
- nitrogen cycle
Q.
CO2 fixation occurs within the stroma..
True
False
Q. Which one of the following mineral elements plays an important role in biological nitrogen fixation?
- Copper
- Manganese
- Molybdenum
- Zinc