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Getting To Know Plants Test - 10

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Getting To Know Plants Test - 10
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Weekly Quiz Competition
  • Question 1
    1 / -0
    Which one of the following statements is not correct?
    Solution
    The unisexual flower is the one that possesses either stamens or carpels but not both.
    Flowers give rise to fruit and seeds.
    Thus, the correct answer is option (B).
  • Question 2
    1 / -0
    Which of the following is a shrub?
    Solution
    Coriander is a herb. Mango and pine are trees. Lemon is a shrub.
    Herbs have soft, non-woody, and unbranched stems. 
    Shrubs may have woody stems and they usually branch out near the base of the plant.
    Trees have thick woody stems that grow upright for about a meter before branching.
    Thus, the correct answer is option C.
  • Question 3
    1 / -0
    The function of nodulated roots is
    Solution
    • Nodulated roots are bead-like structures on the roots and found in plants that are associated with Rhizobium the symbiotic nitrogen fixing bacteria.
    • Their main function is to give shelter to bacteria.
    • Option D is correct.
  • Question 4
    1 / -0
    Plant that reserves its food in its root system is
  • Question 5
    1 / -0
    The essential organs in a flower are:
    Solution
    The stamen, which is the male reproductive part, and pistil, which is the female reproductive part are essential organs in the flower. While sepals and petals are accessory parts of the flower.
    Thus, the correct answer is option C, 'Stamen and Pistil.'
  • Question 6
    1 / -0
    During the process of photosynthesis, plants take in ________ from the atmosphere and release _______ in the air.
  • Question 7
    1 / -0
    Which of the following is/are required for photosynthesis?
    Solution
    $$\textbf{Correct option:}$$  Option D

    $$\textbf{Explanation for correct option:}$$
    Option D
    $$\bullet$$  Carbon dioxide and water are the raw materials for photosynthesis.
    $$\bullet$$  Photosynthesis takes place in the leaves where, the green pigment, chlorophyll traps the light energy of the sun.

          $$Carbon\ dioxide + Water$$  $$ {\xrightarrow {light}} $$  $$Sugar + Oxygen$$


    $$\textbf{Explanation for incorrect options: }$$
    Option A: Carbon dioxide is one of the reactants for photosynthesis hence, plants take in carbon dioxide from the atmosphere through the stomata.
    Option B: Light energy is required for the synthesis of food, hence the process occurs in the presence of light as 
    Option C: Water is the other reactant that is necessary for photosynthesis. The roots of the plant absorb water from the soil.

    $$\textbf{Conclusion:}$$  Thus, carbon doxide, light, and water are required by green plants to carry out photosynthesis.





  • Question 8
    1 / -0
    Carbon dioxide enters the leaves through tiny pores present on the surface of the leaf called:
  • Question 9
    1 / -0
    The ovules are the 
    Solution
    The ovule is a small bead-like structure that is attached to the placenta of the ovary.
    So the correct option is C.
  • Question 10
    1 / -0
    Herbaceous plant that dies back to ground each year but sprouts again from under ground parts is?
    Solution
    A. Herbaceous plant in which the underground part of the plant is alive and survive through unfavourable conditions and then sprout above the ground later are perennial. For example, Piper nigrum etc.
    B. The herbs that can live for two years are biennial plants. For example, coriander etc
    C. The herbs in which both above ground and underground parts die after a year are annual. For example, basil etc
    D. Winter annual herbs are plants which germinate in autumn or winter and live through winter like chickweed etc 
    So, the correct answer is 'Perennial'.
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