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Nutrition in Plants And Animals Test - 7

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Nutrition in Plants And Animals Test - 7
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Weekly Quiz Competition
  • Question 1
    1 / -0
    What are the synthesised and storage forms of food in photosynthesis, respectively?
    Solution
    The synthesised and storage forms of energy in photosynthesis are glucose and starch, respectively.
  • Question 2
    1 / -0
    How do the raw materials required for the photosynthesis reach the plants?
    Solution
    Raw materials for photosynthesis are CO2 and water. CO2 and water are absorbed from air and soil, respectively.
  • Question 3
    1 / -0
    Which organisms form the symbiotic association called Lichen?
    Solution
    Lichen is the symbiotic association between algae and fungus. Fungus benefits from algae because it provides food and alga benefits from fungus as it supplies moisture and nutrients and also gives protection to alga.
  • Question 4
    1 / -0
    Why plants cannot utilise nitrogen directly from the atmosphere?
    Solution
    Nitrogen in the air is N2 and it is very difficult to separate the atoms, so it cannot be utilised by the plants. Once it is fixed to the soil by a lightening strike, it can be used by plants.
  • Question 5
    1 / -0
    Which one of the following is a pair of symbiotic plant and a saprophyte, respectively?
    Solution
    Lichen is a symbiotic association between fungus and alga, thus Lichen is a symbiont. Mushroom is a saprophyte.
  • Question 6
    1 / -0
    What do the patches of green layer floating on the surface of stagnant water bodies like ponds and lakes consist of?
    Solution
    The patches of green layer floating on the surface of stagnant water bodies like ponds and lakes consist of alga.
  • Question 7
    1 / -0
    A small pore A surrounded by B takes in C and gives out D and E. What are A, B, C, D, and E, respectively?
    Solution
    A, B, C, D, and E are Stomata, guard cells, CO2, O2 and water, respectively.
  • Question 8
    1 / -0
    Which of the following organism never exists as symbiont in nature?
    Solution
    Viruses never exist as symbiont in nature. They mainly act as parasites.
  • Question 9
    1 / -0
    Which of the following is not necessary for carrying out the process of photosynthesis?
    Solution
    Oxygen is not required for carrying out the process of photosynthesis.
  • Question 10
    1 / -0
    Two shrubs, A and B, of the same kind are taken. A is kept in sunlight, whereas B is kept in dark for 32-48 hours. After 48 hours, when iodine test is performed on leaves of these two plants, then the leaves of
    Solution
    The leaves of plant A turn blue-black. As plant A is kept in sunlight, it prepares starch, which turns blue-black in the presence of iodine. However, the leaves of plant B could not prepare starch as they did not get sunlight.
  • Question 11
    1 / -0
    Stems are especially modified to carry out photosynthesis in
    Solution
    Stems are modified to carry out photosynthesis in desert plants. The stems of desert plants contain chlorophyll and thus carry out photosynthesis.
  • Question 12
    1 / -0
    Plants require A to make proteins. A is usually taken by plants from B, but some plants fulfill this requirement from C. These plants are called carnivorous plants. What are A, B, and C, respectively?
    Solution
    Plants require nitrogen to make proteins. Nitrogen is usually taken by plants from soil, but some plants fulfill this requirement from insects. These plants are called carnivorous plants.
  • Question 13
    1 / -0

    Directions For Questions

    ...view full instructions

    Which of the following sentences about A, B or C, shown in the figure above, is true?
    Solution
    B is the stomatal opening. Through it, plants take in CO2 for photosynthesis.
  • Question 14
    1 / -0
    A, B and C are three organisms. A is slimy, filamentous, green and grows in ponds, B is a carnivore, and C is filamentous, non-photosynthetic and often associated with food spoilage. Which of the following conclusions can be reached about A, B or C?

    a. A makes its own food.
    b. B has chlorophyll.
    c. C derives nitrogen from insects.
    d. C grows on dead and decaying matter.
    Solution
    As A is slimy, filamentous, green and resides in ponds, therefore it is an alga, and thus, it can be concluded that A makes its own food. C is filamentous, non photosynthetic and often associated with food spoilage, thus C is a fungus, which grows on dead and decaying matter.
  • Question 15
    1 / -0
    Which of the following options contains terms that relate to Chlorophyll, Sun, Oxygen and Iodine, respectively?
    Solution
    Chlorophyll is a green pigment, sun is the ultimate source of energy, oxygen is given out in photosynthesis, and iodine is used to detect starch.
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