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Plant Kingdom 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.  Moss spore germinate to form
  •   Sporophyte
  •   Protonema
  •   Seta
  •   Capsule
Solution
(b) Haploid spore is the first cell of gametophytic generation. The spores of moss germinate to form protonema. The cells of protonema contain chloroplasts.

Q2. Which of the following pteridophytes is heterosporous in nature?
  •   Selaginella and Salvinia
  •   Adiantum and Equisetum
  •   Psilotum and Lycopodium
  •   Adiantum and Psilotum
Solution
(a) Genera like Selaginella and Salvinia, which produce two kinds of spores, macro (large) and micro (small) spores are known as heterosporous

Q3.   Select the correct sequential arrangement of reproductive structures for pteridophytes
  •   Sporophyll Strobilli Sporangia Spore mother cell Spores
  •   Strobilli Sporophyll Sporangia Spores
  •   Spores Sporophyll Sporangia Strobili
  •   Spores Sporangia Sporophyll Strobili
Solution
(a) Sporophyll Strobili Sporangia Spore mother Cell Spores

Q4.  In haplontic life cycle, the dominant generation is
  •   Sporophyte
  •   Gametophyte
  •   Both (a) and (b)
  •   None of the above
Solution
(b) In haplontic life cycle gametophyte is dominant and sporophyte is single celled zygote. Haplonts are (i) Most fungi (ii) Some green algae, ., Chlamydomonas (iii) Many Protozoa, ., Plasmodium

Q5. The amphibians of plant kingdom are
  •  Multicellular non-motile algae
  •   Bryophytes with simple internal organization
  •   Unicellular motile algae
  •   Pteridophytes with complex internal organization
Solution
  (b) Though bryophytes are the land plants but water is essential for fertilization. It provides a medium of transport for antherozoids to reach archegonia. Hence, bryophytes are called amphibians of plant kingdom.

Q6.  Consider the following statements about bryophyte plants I. The tea prepared from is used to dissolve kidney and gall bladder stones II. Many chemical products such as alcohol, ammonium sulphate, paraffin, brown dye, etc., can be obtained from peat Choose the correct option
  •   I is true, II is false
  •   II is true, I is false
  • Both I and II are true
  •   Both I and II are false
Solution
(c) Some bryophytes have important medicinal uses. For example- The tea prepared from Polytrichum commune is used to dissolve kidney and gall bladder stones. Species of Sphagnum, a moss, provide peat that have long used as fuel. Many chemical product such as alcohol, ammonium sulphate, peat tar, paraffin, nitrates, brown dye, tanning, materials, etc., can be obtained from peat

Q7. spirogyra, volvox, chalmydomous shows
  •   Haplontic life cycle
  •   Diplontic life cycle
  •   Haplo-diplontic life cycle
  •   Diplobiontic life cycle
Solution
(a) Haplontic life cycle is primitive type of life cycle. Haplontic life cycle is followed by algae such as Spirogyra, Volvox and Chlamydomonas

Q8. Which one of the following formed in spirogyra is different based on its nucleus?
  •   Zygospore
  •   Azygospore
  •   Aplanospore
  •   Akinete
Solution
(a) The akinetes and aplanospores are asexual bodies in These are haploid structures. The zygospore is formed during sexual reproduction by fusion of two protoplasts. Prior to germination, the diploid zygospore nucleus undergoes meiosis.

Q9. Female sex organ in a flower is
  •   Carpel or pistil
  •   Carpel or androecium
  •   Shot
  •   Stamen
Solution
(a) Female sex organ is carpel also known as pistil or gynoecium. It consist of three parts style, stigma and ovary

Q10.  Choose the correct statement about liverworts I. In liverworts sexual reproduction occurs by the fusion of antherozoids and egg, which are produced in anthridium and archegonium, respectively II. Both male and female sex organs may be present on same thalli or different thalli III. Zygote give rise to sporophyte, which is differentiated into food, seta and capsule IV. Some cells of capsule undergoes meiosis and give rise to haploid spores
  •   I, II and III
  •   II, III and IV
  •   I, III and IV
  • I, II, III and IV
Solution
(d) All the statements are correct. Sexual reproduction occurs by the formation of sex organs born on special branches. The male antheridia are produced on antheridiophore and the female reproductive organs are ‘archegonia’. They are borne on special stalked structures called archegoniophore. Both male and female sex organ may be present on same thalli or different thalli. After fertilisation, the egg becomes zygote, which grow to form sporophyte. It is differentiated into foot, seta and capsule. Inside the capsule, the diploid spore mother cells divide by meiosis and produce haploid spores. These spores germinate to form free-living gametophytes

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