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Morphology of Flowering Plants Test -2

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Morphology of Flowering Plants Test -2
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  • Question 1
    1 / -0

    Monstera has

    Solution

    In some plants, like grass,Monsteraand the banyan tree, roots arisefrom parts of the plant other than theradicle and are called adventitious roots

  • Question 2
    1 / -0

    The root is covered at the apex by a thimble-like structure called

    Solution

    The root is covered at the apex by a thimble-like structure called the root cap.

  • Question 3
    1 / -0

    The part that develops from the plumule of the embryo of a germinating seed is

    Solution

    The stem develops from the plumule of the embryo of a germinating seed.

  • Question 4
    1 / -0

    Rhizophora possess

    Solution

    An aerial root that arises form a stem or trunk, penetrates the soil and help supports the plant. Prop root is found in Rhizophora plant.

  • Question 5
    1 / -0

    Which type of root is developed from parts of the plant other than radicle?

    Solution

    Roots developed from parts of the plant other than radicle are called adventitious roots.

  • Question 6
    1 / -0

    The small lateral outgrowth of the leaf base which protect the young leaf and its axillary buds in young stage is called

    Solution

    The leaf base bear two lateral small leaf like structures called stipules.

  • Question 7
    1 / -0

    Potato is a modified

    Solution

    Potato is a modified stem as it contain nodes in form of eyes on potato tubers which germinate to produce new potato plants if placed in suitable conditions.

  • Question 8
    1 / -0

    The axillary buds of stems may also get modified into woody, straight and pointed thorns in

    Solution

    The axillary buds of stems may also get modified into woody, straight and pointed thorns in Citrus and Bougainvillea. They protect plants from browsing animals.

  • Question 9
    1 / -0

    A lateral branch with short internodes and each node bearing a rosette of leaves and a tuft of roots is found in

    Solution

    A lateral branch with short internodes and each node bearing a rosette of leaves and a tuft of roots is found in aquatic plants such as Pistia and Eicchornia.

  • Question 10
    1 / -0
    The unit of inflorescence in grasses or Gramineae (Poaceae) is
    Solution
    Spikelet or compound inflorescence has peduncle branching repeatedly once or twice and the ultimate branches bear flowers in a raceme or cymose manner. Spikelet is a compact spike having a few flowers borne on an axis called as rachilla and surrounded by two bracts called as glumes, e.g., Wheat, oat, grass. 
  • Question 11
    1 / -0
    If the racemose is branched, it is called as
    Solution
    Compond raceme is also known as panicle or raceme of racemes. Spikelet or compound inflorescence has peduncle branching repeatedly once or twice and the ultimate branches bear flowers in a raceme or cymose manner.
    Therefore, the correct answer is option B.
  • Question 12
    1 / -0
    The inflorescence in cauliflower is:
    Solution
    In cauliflower, the main axis is short and the lower flowers have much longer pedicels than the upper ones. Hence, the flowers appear to be at the same level. It forms compound corymb type of inflorescence.
    So, the correct answer is option A.

  • Question 13
    1 / -0
    In Tulsi (Ocimum) of labiatae, the inflorescence is
    Solution
    Verticillaster is a special type of inflorescence which is similar to condensed dichasial cyme inflorescence. Each dichasial cyme changes to monochasial cyme of scorpoid type. 
    It is a raceme of verticals (whorls of flowers) borne on rectangular axis in the axils of opposite leaves. At each node, there are two verticals. Each whorl consists of two clusters of 3-9 flowers, e.g., Ocimum (Tulsi), SaluiaLeucas.
    Therefore, the correct option is B.
  • Question 14
    1 / -0
    Hypanthodium is a specialized type of
    Solution
    In hypanthodium inflorescence, the fleshy receptacle forms a hollow pear shaped cavity. The female flowers develop towards the base of the cavity and male flowers develop towards the mouth. In between these two, forms the female gall flowers, e.g., Ficus.
    So, the correct answer is 'Inflorescence'
  • Question 15
    1 / -0
    Inflorescence in Musa aphrodisiac (banana) is a

    Solution
    The spadix is a modification of catkin spike in which the peduncle is thick and fleshy with upper part sterile (called appendix) and lower part bearing male, neuter and female unisexual flower surrounded by a large bract called spathe e.g., Musa paradisiaca. 

  • Question 16
    1 / -0
    Most accurate function in the following statements about inflorescence is
    Solution
    The advantage of the inflorescence is the reproduction. Dispersal by wind or animals is improved by having the flowers at the top end of a stem. Pollination is increased by the flowers more visible to pollinating insects and birds.
    Therefore, the correct answer is option B.
  • Question 17
    1 / -0
    A beautiful whorl, which encloses whole of the inflorescence is
    Solution
    When the whole cluster of florets is surrounded by a whorl of bracts, it is collectively called as involucre. It is common in capitulum and cyathium inflorescence.
    Therefore, the correct answer is option D.
  • Question 18
    1 / -0
    The edible part of cauliflower is
    Solution
    The young inflorescence or the immature head of the flower is edible and is known as curd. Cauliflowers have undifferentiated flowers which remain functionless during their first year of growth. The cauliflower head is composed of a white inflorescence meristem
    So, the correct answer is 'Inflorescence'
  • Question 19
    1 / -0
    Which inflorescence is present in Apiaceae?
    Solution
    In umbel inflorescence, the main axis is very short and all flowers arise from the same point. Flowers have the centripetal arrangement (young at the centre). It actually is a racemose inflorescence. The peduncle is branched in umbel manner into rays. Each ray bears reticulated flowers in umbel manner. It is characteristic of family Umbelliferae (Apiaceae)
    Therefore, the correct answer is option A.
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