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Which one of the following is free-living, anaerobic nitrogen-
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Which one of the following is free-living, anaerobic nitrogen-fixer ?

A

B

C

D

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Views: 5,281 students

Updated on: Apr 17, 2023

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Xtract Objective Biology for NEET (Disha)

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is a free-living, anaerobic nitrogen-fixer.
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Practice questions from Xtract Objective Biology for NEET (Disha)

Question 1
Medium
Views

Views: 5,469

In the following question, a statement of Assertion is followed by a statement of Reason.
Assertion :Ammonia is first oxidized to nitrate by the bacteria or .
Reason : These nitrifying Bacteria are chemoheterotrophs.
  1. If both Assertion and Reason are true and the Reason is the correct explanation of the Assertion.
  2. If both Assertion and Reason are true but the Reason is not the correct explanation of the Assertion.
  3. If Assertion is true but Reason is false.
  4. If both Assertion and Reason are false.
Topic

Topic:

Mineral Nutrition

Book

Book:

Xtract Objective Biology for NEET (Disha)

View solution

Question 2
Easy
Views

Views: 6,018

In plant nutrition, elements are classified as major or minor nutrients depending on
  1. their availability in the soil.
  2. their relative production in the ash obtained after burning the plants.
  3. the relative amounts required by the plants.
  4. their relative importance in plant growth.
Topic

Topic:

Mineral Nutrition

Book

Book:

Xtract Objective Biology for NEET (Disha)

View solution

Question 3
Medium
Views

Views: 5,524

Which of the following is not caused by deficiency of mineral nutrition?
  1. Necrosis
  2. Chlorosis
  3. Etiolation
  4. Shortening of internodes
Topic

Topic:

Mineral Nutrition

Book

Book:

Xtract Objective Biology for NEET (Disha)

View 3 solutions

Question 4
Medium
Views

Views: 5,545

Refer the figure given below and select the option which gives correct labelling for all the four blanks A, B, C and D.
  1. A- K
    B- ammonification
    C- animal biomass
    D- plant biomass
  2. A-
    B- ammonification
    C- plant biomass
    D- animal biomass
  3. A-
    B- denitrification
    C- animal biomass
    D- plant biomass
  4. A- CHO
    B- nitrification
    C- plant biomass
    D- animal biomass
Topic

Topic:

Mineral Nutrition

Book

Book:

Xtract Objective Biology for NEET (Disha)

View solution

View more

Practice more questions from Mineral Nutrition

Question 1
Medium
Views

Views: 5,225

The most abundant gas in our atmosphere cannot be utilized by plants directly in its atmospheric form and is, therefore, captured by certain bacteria that live symbiotically in the nodules of roots. What is this gas?
  1. Oxygen
  2. Nitrogen
  3. Neon
  4. Hydrogen
Topic

Topic:

Mineral Nutrition

View solution

Question 2
Medium
Views

Views: 5,672

Plants die from prolonged water-logging because
  1. soil nutrients become very dilute.
  2. root respiration stops.
  3. cell sap in the plants becomes too dilute.
  4. nutrients leach down due to excess water.
Topic

Topic:

Mineral Nutrition

Book

Book:

Chapterwise DPP Sheets for Biology NEET (Disha)

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Question 3
Easy
Views

Views: 6,083

Active transport from outside to inside of molecules across a membrane requires:
  1. Cyclic AMP
  2. Acetyl chlorine
  3. ATP
  4. Phloroglucinol
Topic

Topic:

Mineral Nutrition

Book

Book:

Precalculus

View solution

Question 4
Easy
Views

Views: 6,286

In addition to known essential elements, there are some beneficial elements. These are required by the :
  1. Small plants
  2. Very small plants
  3. Higher plants
  4. All of the above
Topic

Topic:

Mineral Nutrition

View solution

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Practice questions on similar concepts asked by Filo students

Question 1
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During cell enlargement phase of growth, molecules of new cell wall material are inserted between the original molecules of stretched wall. This process is known asa. Intussusception b. Apposition c. Integration d. None of these
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Plant Biology

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Question 2
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Mention the hormones released by anterior pituitary. PART - D (SECTION - I) IV. Answer any FOUR of the following questions in about 200 to 250 words each wherever applicable : 36. Describe the salient features of Mycota? 37. What are Protozoans ? Mention 4 groups of dassification. 38. Write the floral formula and floral diagram of Pisum sativum. 39. Draw a neat labeled diagram of female reproductive system in frog. 40. Give one function for the following cell organelles.
  1. Cell membrane
  2. Golgi apparatus
  3. Chloroplast
  4. Mitochondria
  5. Ribosomes
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Human Physiology

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Question 3
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Which of the following set of hormones bind with receptors present on the cell membrane of the target cells?
  1. Adrenaline, cortisol
  2. Aldosterone,
  3. Insulin, calcitonin
  4. Parathormone, progesterone
Topic

Topic:

Human Physiology

View solution

Question 4
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Views: 5,915

In deserts, the temperature is high during the day but temperature is during night.
  1. Low
  2. High
  3. Either high or low4) Moderate
Topic

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Structural Organisation in Plants and Animals

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Question Text
Which one of the following is free-living, anaerobic nitrogen-fixer ?
Updated OnApr 17, 2023
TopicMineral Nutrition
SubjectBiology
ClassClass 11
Answer TypeText solution:1 Video solution: 4
Upvotes506
Avg. Video Duration4 min