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Morphology of Flowering Plants Quiz-13

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NEET is the most famous and important medical entrance examination held in our country. This exam is an objective type, an offline test which includes 4 sections namely– Physics, Chemistry, Botany, and Zoology. The maximum marks that can be scored are 720 marks and have 180 questions. About half of the paper consists of questions from Biology, as the NEET exam essentially focuses on capacitating students to go for seats in medical courses. One of the most significant and crucial sections in the NEET exam is of Biology. It comprises of theories, descriptions, discoveries, diagrams, definitions, explanations of differences, and relations. The majority of the topics covered in the NEET syllabus are from the NCERT syllabus of Class 11 & 12 and other related sources become part of the rest of the syllabus. Clear Exam curates a list of articles selected by professionals who recommend the highly vital topics for NEET exams. The table below takes you directly to the respective topic where the in-depth article and the MCQs are available for an easy and productive learning experience. Prior to solving NEET question papers or practicing mock tests, you must ensure to study the basic concepts in NEET and practice a few sample questions related to this exam. Students will be covered for all their studies as the topics are available from basics to even the most advanced. .

Q1. Number of female flowers in a Cyathium inflorescence is
  •  One
  •  Two
  •  Three
  •  Several
Solution
In Cyathium inflorescence, one female flower remains surrounded by many male flowers within involucres like structure.

Q2.Pneumatophores are usually present in
  •  Murraya
  •  Eichhornia
  •  Avicinnea
  •  None of these
Solution
Pneumatophores are specialized negatively geotropic roots produced by halophytic mangrove plants, e.g., Avicinnea.

Q3.   Fruit is
  •  Mature ovary developed before fertilisation
  •  Ripened ovary developed before fertilisation
  •  Ripened ovary developed after fertilisation
  •  Mature undeveloped ovary
Solution
The fruit is a characteristic feature of the flowering plant. It is a mature or ripened ovary developed after the fertilisation. Simple Fruit A simple fruit is that fruit which is derived from the ovary a single flower. Depending upon the state of pericarp in the ripe fruit, a simple fruit can be dry or succulent.

Q4. Diadelphous condition is found in.
  •  Rosaceae
  •  Papilionaceae
  •  Leguminosae
  •  Cucurbitaceae
Solution
Diadelphous condition is found in family-Papilionaceae.


Q5. Inflorescence of family-Compositae is
  •  Perianth
  •  Lodicules
  •  Capitulum
  •  Hypanthodium
Solution
  The characteristic inflorescence found in family-Asteraceae or Compositae is capitulum. In this, peduncle becomes flattened and called receptacle. It bears sessile, bisexual florets called disc florets at the centre and one or two whorls of sessile unisexual (pistillate) florets called ray florets towards the periphery.

Q6. Which of the following is not a characteristic feature of Fabaceae?
  •  Descendingly imbricate, ten stamens, diadelphous, ovary superior
  •  Sepals five, gamosepalous, imbricate aestivation, placentation marginal
  •  Monocarpellary, ovary superior, style long, slightly bent at the apex
  •  Corolla, five petals, polypetalous, anterior one large and outermost
Solution
The corolla of Fabaceae family has five petals, polypetalous, Papilionaceous, descending imbricate aestivation, one posterior long standard, two lateral short wings, two anterior petals joined to each other forming keel.

Q7.Amla belongs to family
  •  Labiatae
  •  Fabaceae
  •  Solanaceae
  •  Euphorbiaceae
Solution
Emblica officinalis is the botanical name of amla and it belongs to family-Euphorbiaceae.

Q8.A compound leaf, which appears as simple leaf due to the suppression of one or two leaflets is found in one of the following plants
  •  Hardwickia
  •  Parkinsonia
  •  Coriandrum
  •  Citrus
Solution
A composed leaf has a blade which is divided into small, leaf like leaflet. Citrus plant contains compound leaves, which look like simple leaves due to fall or suppression of its one or two leaflets.

Q9.The smallest Angiospermic flower is
  •  Wolffia
  •  Ranunculus
  •  Rafflesia
  •  Stellaria
Solution
Wolffia sp. (duck weed) is a floating, aquatic Angiospermic plant. It has the smallest flowers of about 1 mm diameter, while Rafflesia arnoldi (total root parasite) has the largest flowers of about 1 metre diameter.

Q10. Modification of petiole into leaf-like structure is called
  •  Cladode
  •  Phylloclade
  •  Phyllode
  • Pistillode
Solution
The lamina in compound leaf of some plants (e.g., Acacia sp, Parkinsonia) falls off soon and petiole gets modified into sickle shaped leafy structure, which performs photosynthesis. Such a modified petiole is called phyllode (phyllodia).

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