Competitive Exams: Botany MCQs (Practice-Test 65 of 104)

  1. Which one of the following correctly describes trichothallic growth?

    1. Growth due to the activity of a single apical cell

    2. Growth due to the activity of a group of apical cells

    3. Growth due to intercalary meristematic activity of cells at the base of hairs

    4. Growth due to the activity of marginal meristematic cells of a filament

  2. The hypothesis of algal origin of higher plants'is based on which one of the following orders of Chiorophyta?

    1. Volvo ales

    2. Ulotrichales

    3. Cladophorales

    4. Chaetophorales

  3. In Saprogenic, a water mould, fertilization occurs by the movement of sperms through

    1. Water currents

    2. Swimming in water

    3. Fertilization tube

    4. Germ tube

  4. Which one of the following species of Cycas is NOT found growing naturally in India?

    1. C revolute

    2. C beddomei

    3. C circinalis

    4. C siamensis

  5. Which one of the following is commonly known as a green mould?

    1. Aspergillus

    2. Pythium

    3. Mucor

    4. Penicillium

  6. The row of smaller leaves lying in the mid-ventral line of members of Acrogenous Jungermanniales are termed as

    1. Amphigastria

    2. Amphithecium

    3. Amphigenous

    4. Amphigynous

  7. Consider the following Eras:

    1. Archaeozoic

    2. Proterozoic

    3. Palaeozoic

    4. Mesozoic

    5. Cenozoic

    Vascular land plants were predominant in

    1. l, 2 and 3

    2. l, 3 and 4

    3. 2, 4 and 5

    4. 3, 4 and 5

  8. Consider the following types of steles occurring in Pteridopliytes:

    1. Protostele

    2. Dictyostele

    3. Siphonostele

    The correct sequence of the chronological order in which they had evolved is

    1. 1, 3, 2

    2. 3, 1, 2

    3. 1, 2, 3

    4. 2, 3, 1

  9. The prokaryotic cell lacks

    1. Nuclear envelope and DNA

    2. Nuclear envelope and plastids

    3. DNA and mitochondria

    4. Cell membrane and nucleus

  10. Which of the following Gymbnosperms has an extremely restricted distribution?

    1. Gnetum

    2. Ephedra

    3. Ginkgo

    4. Welwitschia

  11. Which of the following pairs are correctly matched?

      • Fertile spike
      • Ophioglossum
      • Sporangiophore
      • Equisetum
      • Synangium
      • Psilotum

    Select the correct answer using the codes given below:

    Codes:

    1. 2 and 3

    2. l and 2

    3. 1 and 3

    4. 1, 2 and 3

  12. Which one of the following can be considered to be a dead mechanical tissue?

    1. Aerenchyma

    2. Collenchyma

    3. Parenchyma

    4. Sclerenchyma

  13. Match List I (plants) with List II (presence of character in the plant body) and select the correct answer using the codes given below the lists:

    List-I List-II
    1. Riccia

    2. Marchaiztia

    3. Anthoceros

    4. Funaria

    1. Only smooth-walled unicellular rhizoids

    2. Multicellular rhizoids

    3. Rhomboidal areas on dorsal surface

    4. Dorsal groove along sagittal axis

    • A
    • B
    • C
    • D
      • 4
      • 3
      • 2
      • 1
      • 3
      • 4
      • 2
      • 1
      • 3
      • 4
      • 1
      • 2
      • 4
      • 3
      • 1
      • 2
  14. Match List I with List II and select the correct answer using the codes given below the lists:

    List-I (Organs) List-II (Functions)
    1. Columella

    2. Elater

    3. Marsupium

    4. Gemma

    1. Dispersal

    2. Protection

    3. Reproduction

    4. Decoration

    5. Conduction

    • A
    • B
    • C
    • D
      • 3
      • 5
      • 2
      • 1
      • 5
      • 1
      • 4
      • 3
      • 1
      • 5
      • 4
      • 2
      • 5
      • 1
      • 2
      • 3
  15. Which of the following pairs are correctly matched?

      • Wood rooting
      • Fomes
      • Coprophilus
      • Peziza
      • Primary rock colonizers
      • Nidularia

    Select the correct answer using the codes given below:

    Codes:

    1. 2 and 3

    2. 1 and 3

    3. 1 and 2

    4. 1, 2 and 3