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Plant kingdom Quiz-12

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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.  The algae used in space research is
  •   cephaleurous
  •   gelidium
  •   chlorella
  •   gracilaria
Solution
(c) chlorella is used for purifying air in space ships.

Q2. Bryophytes resemble algae in the following aspect.
  •   Filamentous body, presence of vascular tissues and autotrophic nutrition
  •   Differentiation of plant body into root, stem and leaves and autotrophic nutrition
  •   Thallus like plant body, presence of roots and autotrophic nutrition
  •   Thallus like plant body, lack of vascular tissues and autotrophic nutrition
Solution
(d) Bryophytes resemble algae in many ways, some of which are (i) thalloid plant body (ii) absence of roots (iii) absence of complex vascular tissues (iv) autotrophic mode of nutrition (v) reserve food material is true starch.

Q3.   Which of the following is known as pond silk?
  •   spirogyra
  •   ulothrix
  •   nostoc
  •   anabaena
Solution
(a) The cells of are longer than their breadth. The cell wall is two layered. The inner wall is made up of cellulose and outer of pectose, when pectose comes in contact with water it gives the filament slimy or slippery. Hence, the alga is called pond silk.

Q4.  Natural system of classification was developed by
  •   Linnaeus
  •   Engler and Prantl
  •   Bentham and Hooker
  •   Aristotle
Solution
(c) Natural system of classification was developed by George Bentham and Joseph Dalton Hooker based on natural affinities among the organism. It was based on both external and internal features like phytochemistry, anatomy, ultra-structure, embryology

Q5. Terms artificial, natural and phylogenetic are related to types of
  •   Cytotaxonomy
  •   Classification of plants
  •   Classification of animals
  •   Both (b) and (c)
Solution
  (d) Different systems of classification proposed from time to time have been divided into three basic categories, viz., artificial systems, natural systems and phylogenetic systems

Q6.  Which one of the following is a vascular cryptogam?
  •   quisetum
  •   ginkgo
  • marchantia
  •   cedrus
Solution
(a) Out of these, is a vascular cryptogam.

Q7. Chlorenchyma is known to develop in the
  •   Spore capsule of a moss
  •   Pollen tube of pinus
  •   Cytoplasm of chorella
  •   Mycelium of a green mould such as aspergillus
Solution
(a) The apophysis of moss capsule contains chloroplast bearing parenchymatous cells, called as chlorenchyma. Due to presence of chloroplasts, chlorenchyma cells have the ability to prepare food by the process of photosynthesis.

Q8. The bryophytes are divided into
  •   Mosses and liverworts
  •   Ferns and liverworts
  •   Mosses and horse tails
  •   Ferns and horse tails
Solution
(a) The bryophytes are divided into liverworts and mosses

Q9. In angiospermic fertilisation, one male gamete fuses with egg to form …A… , this event is called …B… . Identify A and B and choose the correct option
  •   A-endosperm; B-syngamy
  •   A-zygote; B-syngamy
  •   A-embryo; B-triple fusion
  •   A-endosperm; B-triple fusion
Solution
(b) A-Zygote; B-Syngamy In angiospermic sexual reproduction, syngamy is the nuclear fusion of the one male gamete with the egg producing diploid zygote or oospore

Q10.  In the life cycle of mosses, the gametophyte has two stages (A and B). These stages can be called
  •   A-Protonema; B-Leafy stage
  •   A-Protonema; B-Sporogonium
  •  A-Sporophyte; B-Gametophyte
  • A-Zygote; B-Spore mother cell
Solution
(a) The predominant stage of the life cycle of a moss is the gametophyte, which consists of two stages. The first stage is protonema stage, which develops directly from a spore. The second stage is the leafy stage which develops from the secondary protonema as a lateral bud. They consist of upright slender axe bearing spirally arranged leaves. They are attached to the soil through multicellular and branched rhizoids. This stage bears the sex organs

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