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11th Standard Biology English Medium Free Online Test One Mark Questions with Answer Key 2020 - Part Eight

11th Standard

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Biology

Time : 00:10:00 Hrs
Total Marks : 10

    Answer all the questions

    10 x 1 = 10
  1. The correct statement regarding Blue green algae is

    (a)

    lack of motile structures

    (b)

    presence of cellulose in cell wall

    (c)

    absence of mucilage around the thallus

    (d)

    presence of floridean starch

  2. Founder of modern Bacteriology _________________

    (a)

    Koch

    (b)

    Griffith

    (c)

    Lederberg

    (d)

    Gram

  3. Which among the bacteria breakdown hydrocarbons?

    (a)

    Pseudomonas putida

    (b)

    Lacto bacillus

    (c)

    Bifido bacterium

    (d)

    Nitrosomonas

  4. Asexual reproduction occurs by conidia _________.

    (a)

    Hydra and Yeast

    (b)

    Aspergillus and Penicillium

    (c)

    Bacteria and Amoeba

    (d)

    Spirogyra

  5. Lysogenic cycle is also called as _________.

    (a)

    Avirulent cycle 

    (b)

    Virulent cycle

    (c)

    Lytic cycle

    (d)

     Regenerative cycle

  6. The haploid number of chromosome for an Angiosperm is 14, the number of chromosome in its endosperm would be

    (a)

    7

    (b)

    14

    (c)

    42

    (d)

    28

  7. In an inflorescence where flowers are borne laterally in an acropetal succession the position of the youngest floral bud shall be

    (a)

    Proximal

    (b)

    Distal

    (c)

    Intercalary

    (d)

    Anywhere

  8. Synapsis occur between

    (a)

    mRNA and ribosomes

    (b)

    spindle fibres and centromeres

    (c)

    two homologous Chromosomes

    (d)

    a male and a female gamete

  9. After a long deep breath, we do not respire for some seconds due to

    (a)

    more CO2 in the blood

    (b)

    more O2 in the blood

    (c)

    less CO2 in the blood

    (d)

    less O2 in the blood

  10. Which of the given option shows all wrong statements for thyroid gland.
    (i) It inhibits process of RBC formation
    (ii) It helps in maintenance of water and electrolytes
    (iii) Its more secretion can reduce blood pressure
    (iv) It Stimulates osteoblast

    (a)

    (i) and (ii)

    (b)

    (iii) and (iv)

    (c)

    (i) and (iv)

    (d)

    (i) and (iii)

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