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Nutrition in Plants Test - 12

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Nutrition in Plants Test - 12
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  • Question 1
    1 / -0
    In the process of photosynthesis by plants, which of the following is not required?
    Solution
    Photosynthesis is the process by which green plants and some other autotrophic organisms use sunlight to synthesize nutrients from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a by-product. In the photosynthesis of plants, alum is not required.
    So, the correct answer is option 'D'.
  • Question 2
    1 / -0
    The autotrophs capture the energy present in the sunlight and convert it into ______.
    Solution
    The autotrophs capture the energy present in sunlight and convert it into chemical energy - ATP. This energy supports all the activities of the living world. 
  • Question 3
    1 / -0
    Rhizobium is associated with
  • Question 4
    1 / -0
    Choose the correct statement with respect to symbiosis.
    Solution
    Organisms in symbiotic relationships, live together and share shelter and nutrients with each other. For example, A lichen is a composite organism formed from the symbiotic association of an alga and a fungus. The fungus provides shelter, water, and minerals to the alga and, in return, the alga provides food which it prepares by photosynthesis.
    Therefore, the correct answer is option D.
  • Question 5
    1 / -0
    The basic components of a cell are:
    Solution
    The basic components of a cell are the cell membrane, cytoplasm, and nucleus. Humans, animals, plants, etc, have all these cell components.
    So, the correct option is (D).

  • Question 6
    1 / -0
    Fertilizers and manures contain plant nutrients such as:
    Solution
    • A plant requires nutrients for its growth and development. 
    • The nutrients are absorbed through the soil. The nutrient-supplying sources are manures and fertilizers. 
    • The application of manures and fertilizers to the soil is one of the important factors that help in increasing crop yield and maintaining soil fertility. 
    • Nitrogen, phosphorous, and potassium are the three major elements required for crop growth. 
    Therefore, the correct answer is option D.
  • Question 7
    1 / -0
    Pitcher plant is:
    Solution
    Insectivorous plants are green plants but insectivorous habit develops due to deficiency of nitrogen in the soil. They usually grow in swampy areas, e.g., Nepenthes or pitcher plant. These plants have modified leaves to form a vase-like structure to trap the insects. 
    Thus, the correct answer is option D. 
  • Question 8
    1 / -0
    Photosynthesis occurs in the ________ of the plants. 
    Solution
    Photosynthesis is the process by which the light energy from the sun is captured by the chlorophyll pigments present on the leaves (mostly leaves, in few plants, stem also contributes in photosynthesis) and is used for the preparation of food. This process requires raw materials like carbon dioxide and water. 
    Thus, the correct answer is option C. 
  • Question 9
    1 / -0
    Which of these groups of words means the same thing?
    Solution
    • The green plants, algae, and other organisms which possess the chlorophyll pigment are known as producers. 
    • They are autotrophs that can utilize the energy from the sun and prepare their own food. 
    • They are the only producers which can synthesize the food products. 

    Thus, the correct answer is option B. 
  • Question 10
    1 / -0
    Insectivorous plants are adopted to soils:
    Solution
    Insectivorous plants are adapted to live in soils deficient in nitrogenous compounds. These plants obtain the nitrogen for their nutrition from amino acids derived from digesting the proteins of the trapped insects. 
    So, the correct answer is option C.
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