World's only instant tutoring platform
dropdown-logo
Become a tutorPartnershipsAbout usStudent loginTutor login
About us
Login
App StorePlay Store
Get 2 FREE Instant-Explanations on Filo with code FILOAPP
What are the conditions necessary for fixation of atmospheric
Biology
Biology

Class 11

NCERT

Publisher:
NCERT
Subject:
Biology
1

Chapter 1: The Living World

11 questions

arrow
2

Chapter 2: Biological Classification

12 questions

arrow
3

Chapter 3: Plant Kingdom

12 questions

arrow
4

Chapter 4: Animal Kingdom

15 questions

arrow
5

Chapter 5: Morphology of Flowering Plants

15 questions

arrow
6

Chapter 6: Anatomy of Flowering Plants

12 questions

arrow
7

Chapter 7: Structural Organization in Animals

14 questions

arrow
8

Chapter 8: Cell: The Unit of Life

14 questions

arrow
9

Chapter 9: Biomolecules

15 questions

arrow
10

Chapter 10: Cell Cycle and Cell Division

16 questions

arrow
11

Chapter 11: Transport in Plants

16 questions

arrow
12

Chapter 12: Mineral Nutrition

10 questions

Q1
How are the minerals absorbed by plants?
Q2
What are the conditions necessary for fixation of atmospheric nitrogen by Rhizobium. What is their role in N fixation?
Q3
What are the steps involved in formation of a root nodule?
View all question
13

Chapter 13: Photosysnthesis in Higher Plants

9 questions

arrow
14

Chapter 14: Respiration in Plants

12 questions

arrow
15

Chapter 15: Plant Growth and Development

11 questions

arrow
16

Chapter 16: Digestion and Absorption

15 questions

arrow
17

Chapter 17: Breathing and Exchange of Gases

14 questions

arrow
18

Chapter 18: Body Fluids and Circulation

14 questions

arrow
19

Chapter 19: Excretory Products and their Elimination

12 questions

arrow
20

Chapter 20: Locomotion and Movement

10 questions

arrow
21

Chapter 21: Neural Control and Coordination

12 questions

arrow
22

Chapter 22: Chemical Coordination and Integration

9 questions

arrow
Question
Easy
Timing Icon

Solving time: 3 mins

What are the conditions necessary for fixation of atmospheric nitrogen by Rhizobium. What is their role in N fixation?

Views

Views: 5,734 students

Book

Book:

Biology (NCERT)

tutor 0tutor 1tutor 2
Found 5 tutors discussing this question
Lucas Discussed
What are the conditions necessary for fixation of atmospheric nitrogen by Rhizobium. What is their role in N fixation?
6 mins ago
Discuss this question LIVE
6 mins ago

Text SolutionText solutionverified iconVerified

Rhizobium is a symbiotic bacteria present in the root nodules of leguminous plants. The basic requirements for Rhizobium to carry out nitrogen fixation are as follows :
(a) Presence of the enzyme nitrogenase
(b) Presence of leg-haemoglobin
(c) Non-haem iron protein, ferrodoxin as the electron-carrier
(d) Constant supply of ATP
(e) ions as co-factors
Rhizobium contains the enzyme nitrogenase - a Mo-Fe protein - that helps in the conversion of atmospheric free nitrogen into ammonia.
The reaction is as follows :

The Rhizobium bacteria live as aerobes under free-living conditions, but require anaerobic conditions during nitrogen fixation. This is because the enzyme nitrogenase is highly sensitive to molecular oxygen. The nodules contain leg-haemoglobin, which protects nitrogenase from oxygen.
Was this solution helpful?
45
Share
Report
One destination for complete JEE/NEET preparation
One destination to cover all your homework and assignment needs
Learn Practice Revision Succeed
Instant 1:1 help, 24x7
Instant 1:1 help, 24x7
60, 000+ Expert tutors
60, 000+ Expert tutors
Textbook solutions
Textbook solutions
Big idea maths, McGraw-Hill Education etc
Big idea maths, McGraw-Hill Education etc
Essay review
Essay review
Get expert feedback on your essay
Get expert feedback on your essay
Schedule classes
Schedule classes
High dosage tutoring from Dedicated 3 experts
High dosage tutoring from Dedicated 3 experts
Trusted by 4 million+ students

Practice more questions from Biology (NCERT)

Q1
How are the minerals absorbed by plants?
Q2
What are the conditions necessary for fixation of atmospheric nitrogen by Rhizobium. What is their role in N fixation?
Q3
What are the steps involved in formation of a root nodule?
View all

Practice questions from Biology (NCERT)

Question 1
Easy
Views

Views: 6,243

Why is purification of water and nutrient salts so important in studies involving mineral nutrition using hydroponics?
Topic

Topic:

Mineral Nutrition

Book

Book:

Biology (NCERT)

View 2 solutions

Question 2
Easy
Views

Views: 6,084

How are the minerals absorbed by plants?
Topic

Topic:

Mineral Nutrition

Book

Book:

Biology (NCERT)

View 2 solutions

Question 3
Hard
Views

Views: 6,239

Name at least five different deficiency symptoms in plants. Describe them and correlate them with the concerned mineral deficiency.
Topic

Topic:

Mineral Nutrition

Book

Book:

Biology (NCERT)

View solution

Question 4
Easy
Views

Views: 6,452

All elements that are present in a plant need not be essential to its survival. Comment.
Topic

Topic:

Mineral Nutrition

Book

Book:

Biology (NCERT)

View 2 solutions

View more
filo Logo

Practice more questions from Mineral Nutrition

Question 1
Easy
Views

Views: 5,226

When the plants are grown in magnesium deficient but urea rich soil, the symptoms expressed are
  1. yellowish leaves
  2. colourless petiole
  3. dark green leaves
  4. shoot apex die.
Topic

Topic:

Mineral Nutrition

Book

Book:

33 Years NEET-AIPMT Chapterwise Solutions - Biology 2020 (MTG)

View 2 solutions

Question 2
Easy
Views

Views: 5,287

Carbon is available to crop plants in the form of
  1. Amino acids
  2. Carbonates
  3. Carbon dioxide
  4. Element carbon
Topic

Topic:

Mineral Nutrition

View solution

Question 3
Easy
Views

Views: 5,843

State true/false.
Decreased availability of boron results in appearance of necrotic spots.
Topic

Topic:

Mineral Nutrition

Book

Book:

Modern ABC Biology Class 11 Part 2 (Modern ABC)

View solution

Question 4
Easy
Views

Views: 5,325

State true/false.
Leghaemoglobin has the ability to combine very rapidly with oxygen and thus act as oxygen carrier.
Topic

Topic:

Mineral Nutrition

Book

Book:

Modern ABC Biology Class 11 Part 2 (Modern ABC)

View solution

Practice questions on similar concepts asked by Filo students

Question 1
Views

Views: 5,683

An element essential for nitrogen metabolism is a. K b. Mo c. Mg d. Mn
Topic

Topic:

Transport in plants

View solution

Question 2
Views

Views: 5,113

If the papillary muscles of the heart fail to contract the ventricles will not pump blood. the AV valves will not close properly. the AV valves will not open. the semilunar valves will not open. the atria will not pump blood.
Topic

Topic:

Biology

View solution

Question 3
Views

Views: 5,153

rates, up to 15 metres per hour. How is thts movement aceamplished? A Driving force long standing question is. whether water is 'pushed' or pulled throuph the plant. Most researchers agree that water is mainly-pulled through the plant. and that the driving force for this process is granspiration from the teaves. This is relerred to as the cohesion-tension-transpiration pull model of water transport. But, What generates this transpinilhonat pult? Water is transient in plants. Less than I per cent of the water reaching the leaves is used in photosymthesis and plant growth. Most of it is lost Conesion:through the stomata in the leaves. This water loss is known as fro fertwee transpiration. somuthing tnut nosthe paros to muke thing? Mappen
  1. You have stuclied transpiration in an cartier class by enclosing a healthy plint in palythene bag and observing the ctroplets of water formed inside moleule the bag. You could also study water loss from a leaf using cobalt chloride paper, which turns colour on absorbing water. which they cure helds togethno is 1.1.4 TrAN\&PIRATION
  2. Transpiration is the evaporative loss of water by plants. It occurs mainly through stomata (sing. : stoma). Besides the loss of water vapour in Cailed colo 5 close during the night. The immediate cause of the opening or closing of or \& \&t stomata is a change in the turgidity of the guard cells. The inner wall of betw (h) cach guard cell, towards the pore or stomatal aperture, is thick and elastic, (When turgidity increases within the two guard cells flanking each stornatal aperture or pore, the thin outer walls bulge out and force the inner walls into a crescent shape. The opening of the stoma is also aided due to the orlentation of the microfibrils in the cell walls of the guard cells, Cellulose mierofibrils are oriented radially rather than longitudinally makingiteaster for the stoma to open. When the guard cells lose turgor, due to water loss (or water stress) the elastic inner walls regain their original shape, the guard cells become flaccid and the stoma closes.
  3. Usually the lower surface of a dorsiventral (often dicotyledonous) leaf has a greater number of stomata while in an isobilateral (often monocotyledonous) leaf they are about equal on both surfaces. Transpiration is affected by several external factors: temperature, light. humidity, wind speed. Plant factors that afiect transpiration include number and distribution of stomata. per cent of open stomata. water status of the plant, canopy structure etc.
  4. Figure 11.8 A stomatal aperture with guard
Topic

Topic:

Plant Physiology

View solution

Question 4
Views

Views: 5,650

The three ways through which different flowers attract the insect pollinators. Introduction: The process in which the pollen from the flower’s anther is transferred to the stigma of either the same or different flower is referred to as pollination. The pollinating agents involved in pollination also varies. The different types of pollinating agents include wind, birds, bats, water, and insects.
Topic

Topic:

Biology

View solution

View more
Doubt Icon Doubt Icon

Stuck on the question or explanation?

Connect with our Biology tutors online and get step by step solution of this question.

231 students are taking LIVE classes

Related books for questions on Mineral Nutrition

next icon
next icon
Question Text
What are the conditions necessary for fixation of atmospheric nitrogen by Rhizobium. What is their role in N fixation?
TopicMineral Nutrition
SubjectBiology
ClassClass 11
Answer TypeText solution:1
Upvotes45