Morphology of Flowering Plants Quiz-20

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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.  Cereals are mostly belong to family
  •  Cruciferae
  •  Brassicaceae
  •  Poaceae
  •  Asteraceae
Most of the cereales belong to family-Poaceae (Gramineae). It is most widly distributed family containing nearly 600 genera and 10,000 species.

Q2.Endosperm is the result of
  •  Single fertilisation
  •  Partial fertilisation
  •  Double fertilisation
  •  Triple fertilisation
Endosperm is formed as a result of double-fertilisation. Endosperm nourishes the developing embryo during seed development. In plants such as bean, gram and pea, the endosperm is not present in the mature seed because the endosperm is completely consumed during development of seed. Such seeds are called nonendospermic or exalbumious. In monocots and caster bean (dicot) embryo do not consume all endosperm during seed development. So it persists in the mature seeds. Such seeds are called endospermic or albuminous seed

Q3.   Scutellum in a caryopsis represents
  •  Outermost layer of endosperm
  •  A sheath that protects the radical
  •  The place where the seed is attached to rephe
  •  A cotyledon
The monocotyledonous embryo of grasses is strikingly different from that of other monocotyledons. The mature embryo has a single cotyledon called scutellum. The portion of embryonal exis below scutellum is redicle while the portion of embryonal axis above the level of Scutellum is epicotyl.

Q4. Function of obturator on micropyle is to
  •  Obstruct the path
  •  Direct the growth of pollen tube
  •  Help in fusion
  •  Dissolve the wall of pollen tube
The function of obturator on micropyle is to direct the growth of pollen tube.

Q5. The leaf parts gets modified into spines in order to
  •  Reduce transpiration
  •  Reduce surface area
  •  Protect the plant from grazing animals
  •  All of the above
  When there is less surface area, there is thule leaf or leaf parts less transpiration. Hence, the xerophytic plant gets changed into the spines in order to reduce the gets transpiration.

Q6. Viscum is a
  •  Total root parasite
  •  Total stem parasite
  • Partial root parasite
  •  Partial stem parasite
Viscum (mistletoe) is a partial stem parasite that grows on silverfer, popular, apple, walnut, oak, etc.

Q7.Whorled type of phyllotaxy is found in
  •   Mustard
  •  China rose
  •  Guava
  •  Alstonia
In whorled or verticillate phyllotaxy, three (e.g., Nerium) or more than three (e.g., Alstonia) leaves are borne on a single node in a whorl or circle. The leaves of the whorl of one node generally alternate with the leaves of the whorl of adjacent nodes in order to provide maximum exposure.

Q8.Identify A to E in the given diagram

  •  A-Node, B-Internode, C-Accessory bud, D-Primary root, E-Secondary root
  •  A-Node, B-Internode, C-Bud, D-Primary root, E-Secondary root
  •  A-Internode, B-Node, C-Bud, D-Primary root, E-Secondary root
  •  A-Internode, B-Node, C-Callus, D-Primary root, E-Secondary root
A-Node, B-Internode, C-Bud, D-Primary root, E-Secondary root

Q9.A plant is considered to possess all advanced morphological characters based on the evolutionary significance. Which one of the following sets of characters does the plant denote the same?
  •  Dioecious condition, gamopetalous corolla and multiple fruit
  •  Actinomorphic flowers, free stamens and endospermic seeds
  •  Perennial life span, dichlamydous flower and simple fruit
  •  Simple leaves, monoecious condition and apocarpous pistil
Advanced characters of plants are dioecious flower, i.e., unisexuyal flower, gamopetalous corolla, i.e., petals (parts of corolla) is fused and multiple fruits, i.e., compound fruit.

Q10. Identify the characters of gynoecium found in members of Asteraceae, Fabaceae, Liliaceae and Solanaceae, respectively I.Tricarpelly syncarpous, ovary superior and trilocular. II.Bicarpellary syncarpous, ovary superior and usually bilocular III.Bicarpellary syncarpous, ovary inferior and unilocular. IV.Monocarpellary, ovary half-inferior and unilocular.
  •  II, I, III, IV
  •  III, IV, I, II
  •  IV, III, II, I
  • I, II, IV, III
In the members of family : Compositae (Asteraceae), gynoecium is bicarpellary, syncarpous, ovary inferiors unilocular, basal placentation. Leguminous (Fabaceae) gynoecium is monocarpellary, ovary superior, unilocular with marginal placentation. Liliaceae, gynoecium is tricarpellary, syncarpous, ovary superior, trilocular with axile placentation. Solanaceae, gynoecium is bicarpellary, syncarpous ovary superior, carpels placed obliquely, generally bilocular with axile placentation

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Quiz-20 Morphology of Flowering Plants
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