Competitive Exams: Botany MCQs (Practice-Test 51 of 104)

  1. Wood with vessels of unequal diameter and with the largest vessels localized in the early wood is called

    1. Diffuse porous wood

    2. Ring porous wood

    3. Stratified wood

    4. Non-stratified wood

  2. Match List I (Type of Tissues/structures) with List II (Characteristic features of the tissue) and select the correct answer using the codes given below the lists

    List-I List-II
    1. Hydathodes

    2. Collenchyma

    3. Periblem

    4. Tyloses

    1. Balloon-like protrusions into treachery element, developed from Xylem Parenchyma

    2. Mechanical tissue that consists of living cells, walls rich in pectin and hemicelluloses

    3. Occur on leaf tips responsible for guttation

    4. Meristematic tissue responsible for the development of cortex

    • A
    • B
    • C
    • D
      • 2
      • 3
      • 4
      • 1
      • 3
      • 2
      • 1
      • 4
      • 2
      • 3
      • 1
      • 4
      • 3
      • 2
      • 4
      • 1
  3. Consider the following statements:

    1. The fungi in most lichens are basidiomycetes

    2. Complex fruiting bodies are never formed in zygomycetes

    Which of the statements given above is/are correct?

    1. 1 only

    2. 2 only

    3. Both 1 and 2

    4. Neither 1 nor 2

  4. Multiple epidermis on dorsal and vetral side of the leaf is found in

    1. Zea mays

    2. Ficus benghalensis

    3. Mangifera indica

    4. Cassia fistula

  5. Consider the following statements with reference to criterion/criteria used in the classification of plants in the engler and Prantl's system

    1. The families were arranged according to the increasing complexity of flower and fruit

    2. In flowering plants absence of perianth was considered as a primitive character

    3. Monocots were considered to be more primitive than dicots

    4. Unisexual flowers were derived from bisexual flowers

    Which of the statements given above are correct?

    1. 1 and 2

    2. 1 and 4

    3. 1, 2 and 3

    4. 2, 3 and 4

  6. Consider the following statements: The International code of botanical nomenclature prescribes that

    1. Every taxon or group of plants can bear only one correct name

    2. A name could be applied to one or more than group of plants

    3. The rank of species is basic in nomenclature

    Which of the statements given above are correct?

    1. 1, 2 and 3

    2. 1 and 2

    3. 2 and 3

    4. 1 and 3

  7. Rubber is obtained from the latex of trees belonging to which of the following families?

    1. Moraceae

    2. Meliaceae

    3. Myrtaceae

    4. Urticaceae

  8. Match List I (Characteristics of Family) with List II (Name of Family) and select the correct answer using the codes given below the lists:

    List-I List-II
    1. Inflorescence umbel, 2-carpellary inferior ovart, fruits of 2-mericarps

    2. Inflorescence capitulum's, 2-carpellary inferior ovary fruit cypsela with pappus hairs

    3. Inflorescence cyme, flowers regular, 2-carpellary superior ovary with swollen & oblique placenta, fruits berry

    4. Inflorescence verticillastrate, flowers irregular, 2-carpellary superior ovary with gynobasic style, fruits of 4 nutets

    1. Solanacese

    2. Apiaceae

    3. Lamiaceae

    4. Asteraceae

    • A
    • B
    • C
    • D
      • 3
      • 1
      • 4
      • 2
      • 2
      • 4
      • 1
      • 3
      • 3
      • 4
      • 1
      • 2
      • 2
      • 1
      • 4
      • 3
  9. Which one of the following systems of plant classification is not phylogenetic?

    1. Bentham and Hooker's system

    2. Engler and Prantl's system

    3. Hutchinson's system

    4. Takhtajan's system

  10. Which of the following have been more often used than any other group of plant substance n chemotaxonomic studies 2

    1. Falconoid

    2. Trapezoids

    3. Alkaloids

    4. Iridoids

  11. Which one of the following plants does not belong to family Euphorbiaceous

    1. Abution indicum

    2. Acalypha indica

    3. Manhot esculentus

    4. Ricnus communis

  12. The genus A gave was separated from Amaryllidaceous and kept under Agavaceae because it shows

    1. Variable chromosome number

    2. Different chromosomal behavior

    3. Various chromosomal banding patterns

    4. Different chromosomal size

  13. Which of the following is not a characteristic of oomycetes?

    1. Flagellate zoospores

    2. Hyphen cell wall consisting of cellulose

    3. Oogamous reproduction

    4. Production of ascosporic

  14. Which one of the following pairs is not correctly matched?

      • Spirogyra
      • Conjugation
      • Volvox
      • Oogamy
      • Oedogonium
      • Cap cell
      • Ulothrix
      • Heterocyst
  15. Paramylon: Name of storage food product of photosynthesis in

    1. Cyanophyata

    2. Euglenophyata

    3. Phaeophyta

    4. Rhoodophyta