Self Studies
Self Studies
Self Studies
Self Studies

Mineral Nutrition Test - 43

Result Self Studies

Mineral Nutrition Test - 43
  • Score

    -

    out of -
  • Rank

    -

    out of -
TIME Taken - -
Self Studies

SHARING IS CARING

If our Website helped you a little, then kindly spread our voice using Social Networks. Spread our word to your readers, friends, teachers, students & all those close ones who deserve to know what you know now.

Self Studies Self Studies
Weekly Quiz Competition
  • Question 1
    1 / -0
    Nitrogen is one of the essential constituents of all living organisms as part of 
    Solution
    • Nitrogen is one of the essential constituents of all living organisms as part of proteins, chlorophyll, nucleic acids and vitamins. 
    • It is a component of amino acids which are building block of proteins, which forms structural basis of all organisms.  
    • Nitrogen is required for production chlorophyll, nucleic acids and enzymes. 
    • it is also a major component of vitamins.
    Option "D" is correct.
  • Question 2
    1 / -0
    Deficiency of zinc in plants, affects the biosynthesis of 
    Solution
    Zinc is an essential micronutrient for plants. Zinc is involved in the synthesis of indoleacetic acid (IAA) by activating the enzyme tryptophan synthetase. It plays a role in protein synthesis. It acts as an activator of many other enzymes, such as carbonic anhydrase, alcohol dehydrogenase, hexokinase and so on. 
    Deficiency symptoms of zinc are-
    i. Causes distortion of growth.
    ii. Leaves become very small and rosetted, called as little leaf disease.
    iii. Interveinal chlorosis and stunted growth of stems is seen.
  • Question 3
    1 / -0
    Which elements are related to khaira disease of paddy and auxin synthesis?
    Solution
    Zinc is an essential micronutrient for plants. Zinc is involved in the synthesis of indoleacetic acid (IAA) by activating the enzyme tryptophan synthetase. It plays a role in protein synthesis. It acts as an activator of many other enzymes, such as carbonic anhydrase, alcohol dehydrogenase, hexokinase and so on. 
    Deficiency symptoms of auxins are -
    i. Causes distortion of growth.
    ii. Leaves become very small and rosetted, called as little leaf disease.
    iii. Interveinal chlorosis and stunted growth of stems is seen.
    iv Khaira disease of rice.
  • Question 4
    1 / -0
    Cobalt present in which of the following?
    Solution
    Vitamin B-12, also called as cobalamin, is a water-soluble vitamin with a key role in the normal functioning of the brain and nervous system, and for the formation of red blood cells. 
    Vitamin B-12 consists of a class of chemically related compounds (vitamers), all of which have vitamin activity. It contains the biochemically rare element cobalt, sitting in the center of a planar tetra-pyrrole ring, called as a corrin ring. The deficiency of B-12 gives rise to pernicious anemia.
  • Question 5
    1 / -0
    All the nitrogenase enzyme has been inactivated by radiation. There will be no ________________.
  • Question 6
    1 / -0
    Blue green algae fix ........... directIy from air to enhance fertility of soil.
    Solution
    Blue-green algae can fix the atmospheric nitrogen because they contain an O22 sensitive enzyme nitrogenase. They live in close association with the leaves of the Azolla plant and fix the atmospheric nitrogen into the soluble form which is utilised by the plant. This nitrogen helps in increasing the fertility of the soil and can be used for the growth of the paddy crops. 
    Thus, the correct answer is option A. 
  • Question 7
    1 / -0
    Blue green algae fix ........... directly from air to enhance fertility of soil.
    Solution
    Blue-green algae can fix the atmospheric nitrogen because they contain an O$$_2$$ sensitive enzyme nitrogenase. They live in close association with the leaves of the Azolla plant and fix the atmospheric nitrogen into the soluble form which is utilised by the plant. This nitrogen helps in increasing the fertility of the soil and can be used for the growth of the paddy crops. 
    Thus, the correct answer is option B. 
  • Question 8
    1 / -0
    The fixation of free nitrogen by bacteria in the soil  protein is only done by
    Solution
    Leguminous plants require a large amount of nitrogen for their proper growth and development. The soil in which they grow does not provide enough nitrogen It is present in air but it is not in the absorbable form as it is free nitrogen. Roots of legumes contain nodules that provide habitat to a large number of Azobacter. These bacteria convert atmospheric nitrogen into soluble and absorbable forms like nitrites and nitrates that fulfil the nitrogen requirement of plants.
  • Question 9
    1 / -0
    Hydroponics is growing plants in
    Solution
    • In 1860, Julius von Sachs, a prominent German botanist, demonstrated, for the first time, that plants could be grown to maturity in a defined nutrient solution in the complete absence of soil. This technique of growing plants in a nutrient solution is known as hydroponics.
    • Hence Hydroponics is growing plants in a solution of mineral nutrients.
    • So, the correct answer is 'Solution of mineral nutrients'.
  • Question 10
    1 / -0
    Electrochemical reactions cause atmospheric .......... fixation.
Self Studies
User
Question Analysis

  • Correct -

  • Wrong -

  • Skipped -

My Perfomance
  • Score

    -

    out of -
  • Rank

    -

    out of -
Re-Attempt Weekly Quiz Competition
Self Studies Get latest Exam Updates
& Study Material Alerts!
No, Thanks
Self Studies
Click on Allow to receive notifications
Allow Notification
Self Studies
Self Studies Self Studies
To enable notifications follow this 2 steps:
  • First Click on Secure Icon Self Studies
  • Second click on the toggle icon
Allow Notification
Get latest Exam Updates & FREE Study Material Alerts!
Self Studies ×
Open Now