-
Engineering and Architecture
Exams
Colleges
Predictors
Resources
-
Computer Application and IT
Quick Links
Colleges
-
Pharmacy
Colleges
Resources
-
Hospitality and Tourism
Colleges
Resources
Diploma Colleges
-
Competition
Other Exams
Resources
-
School
Exams
Top Schools
Products & Resources
-
Study Abroad
Top Countries
Student Visas
-
Arts, Commerce & Sciences
Exams
Colleges
Upcoming Events
Resources
-
Management and Business Administration
Colleges & Courses
Predictors
-
Learn
Online Courses
Engineering Preparation
Medical Preparation
-
Online Courses and Certifications
Top Streams
Specializations
- Digital Marketing Certification Courses
- Cyber Security Certification Courses
- Artificial Intelligence Certification Courses
- Business Analytics Certification Courses
- Data Science Certification Courses
- Cloud Computing Certification Courses
- Machine Learning Certification Courses
- View All Certification Courses
Resources
-
Medicine and Allied Sciences
Colleges
Predictors
Resources
-
Law
Resources
Colleges
-
Animation and Design
Exams
Predictors & Articles
Colleges
Resources
-
Media, Mass Communication and Journalism
Exams
Colleges
Resources
-
Finance & Accounts
Top Courses & Careers
Colleges
Get Answers to all your Questions
8. What are the conditions necessary for the fixation of atmospheric nitrogen by Rhizobium? What is their role in N2 - fixation?
Answers (1)
The conditions necessary for fixation of atmospheric nitrogen by Rhizobium and their roles in nitrogen fixation are as follows:
1. Reducing environment- A reducing environment is necessary for the action of the enzyme nitrogenase which is sensitive to free oxygen.
2. Presence of nitrogenase enzyme- a Mo-Fe protein — that helps in the conversion of atmospheric free nitrogen into ammonia.
3. Presence of leghaemoglobin- The root nodules containing Rhizobium contain leg-haemoglobin, which protects nitrogenase from oxygen.
4. Source of energy as ATP- Nitrogen fixation is an energy energy-requiring process thus ATP is required.
5. Source of reducing power NAD(P), H2 or FMNH2-
6. Ferredoxin as the electron donor- Ferredoxin makes nitrogen reactive.
7. Magnesium ions as cofactors- Magnesium acts as a cofactor and helps in the activity of nitrogenase.
Crack CUET with india's "Best Teachers"
- HD Video Lectures
- Unlimited Mock Tests
- Faculty Support
Similar Questions
- 0.3780 g of an organic chloro compound gave 0.5740 g of silver chloride in Carius estimation. Calculate the percentage of chlorine present in the compound.
- 1.0 mol of a monoatomic ideal gas is expanded from state (1) to state (2) as shown in figure. Calculate the work done for the expansion of gas from state (1) to state (2) at 298 K.
- At what temperature is the root mean square speed of an atom in an argon gas cylinder equal to the rms speed of a helium gas atom at – 20 °C ?
Trending Articles/News
Latest Question
- A sum of money under compound interest doubles itself in 4 years. In how many years will it become 16 times itself? Option: 1 1
- A certain loan amounts, under compound interest, compounded annually earns an interest of Rs.1980 in the second year and Rs.2178 in the third year. How much interest did it earn in the first year?<
