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The term critical concentration means
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Solving time: 2 mins

The term critical concentration means

A
essential element concentration below which plant remains in the vegetative phase.

B
essential element concentration below which the plant growth is retarded.

C
essential element concentration above which the plant growth is stunted.

D
non-essential element concentration below which plant growth is retarded.

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Updated on: Dec 25, 2022

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Book:

Xtract Objective Biology for NEET (Disha)

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Critical concentration of the nutrient may be defined as the minimum tissue content of the nutrient that is corrected with maximal growth or yield. As the nutrient concentration of the tissue increases beyond the aquatic zone, growth or yield decline because of its toxicity.
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Practice questions from Xtract Objective Biology for NEET (Disha)

Question 1
Easy
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Views: 5,549

The major role of minor elements inside living organisms is to act as
  1. Micronutrients or trace elements are essential elements required by plants in traces only less than 10 mmole of dry matter. These are eight in numbers (Zn, Mn, B, Cu, Mo, Cl, Ni, Fe).
Topic

Topic:

Mineral Nutrition

Book

Book:

Xtract Objective Biology for NEET (Disha)

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Question 2
Medium
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Views: 5,640

How many of the given statements are correct?
(i) The deficiency of any element can cause multiple symptoms.
(ii) Same symptoms may be caused by the deficiency of one or several different elements.
(iii) The concentration of the essential element below which plant growth is retarded is termed as critical concentration.
(iv) Chlorosis is the loss of chlorophyll due to deficiency of N, K, Mg, Fe, S, Mn, Zn Mo.
(v) Different plants respond differently to the deficiency of the same element.
  1. (iii) and (iv)
  2. (i) and (iv)
  3. (i) and (iii)
  4. All of these
Topic

Topic:

Mineral Nutrition

Book

Book:

Xtract Objective Biology for NEET (Disha)

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Question 3
Medium
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Views: 5,633

In the following question, a statement of Assertion is followed by a statement of Reason.
Assertion : Chlorosis is the loss of chlorophyll leading to yellowing of leaves.
Reason : This symptom is caused by the deficiency of elements N,K, Mg, S, Fe and Mo.
  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 4
Medium
Views

Views: 6,019

The given figure shows a typical set up with their parts marked as A, B and C. Identify A, B and C and determine which experiment is demonstrated in the given figure?
  1. A- funnel for adding water and nutrients
    B- aerating tube
    C- nutrient solution
    D- hydroponics
  2. A- funnel for adding water only
    B- aerating tube
    C- nutrient solution
    D- aeroponics
  3. A- funnel for adding nutrients only
    B- aerating tube
    C- water
    D- tissue culture
  4. A- funnel for adding water and nutrients
    B- aerating tube
    C- water
    D- hydroponics
Topic

Topic:

Mineral Nutrition

Book

Book:

Xtract Objective Biology for NEET (Disha)

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Question 1
Easy
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The first stable product of fixation of atmospheric nitrogen in leguminous plants is:
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Book

Book:

Chemistry

Exam

Exam:

NEET 2013

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Question 2
Medium
Views

Views: 5,516

While producing hydroponic plants, which of the following metal is added along with EDTA?
  1. Nitrogen
  2. Copper
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Question 3
Medium
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I. Meristematic tissues
II. Buds
III. Leaves
IV. Root tips
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  2. I and IV
  3. II and IV
  4. All of these
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Mineral Nutrition

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Medium
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Question 2
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Question Text
The term critical concentration means
Updated OnDec 25, 2022
TopicMineral Nutrition
SubjectBiology
ClassClass 11
Answer TypeText solution:1 Video solution: 1
Upvotes238
Avg. Video Duration2 min