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11th Standard Biology English Medium Free Online Test 1 Mark Questions 2020 - Part Six

11th Standard

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Biology

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

    Answer all the questions

    10 x 1 = 10
  1. Identify the Archaebacterium

    (a)

    Acetobacter

    (b)

    Erwinia

    (c)

    Treponema

    (d)

    Methanobacterium

  2. Living things are made of ___________

    (a)

    Organisms

    (b)

    Atoms

    (c)

    Organs

    (d)

    Cells

  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. 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

  7. Synapsis occur between

    (a)

    mRNA and ribosomes

    (b)

    spindle fibres and centromeres

    (c)

    two homologous Chromosomes

    (d)

    a male and a female gamete

  8. Why is the velocity of blood flow the lowest in the capillaries?

    (a)

    The systemic capillaries are supplied by the left ventricle, which has a lower cardiac output than the right ventricle

    (b)

    Capillaries are far from the heart, and blood flow slows as distance from the heart increases

    (c)

    The total surface area of the capillaries is larger than the total surface area of the arterioles

    (d)

    The capillary walls are not thin enough to allow oxygen to exchange with the cells

    (e)

    The diastolic blood pressure is too low to deliver blood to the capillaries at a high flow rate

  9. Pearl oyster belongs to the Class

    (a)

    Gastropoda

    (b)

    Cephalopoda

    (c)

    Scaphapoda

    (d)

    Pelecypoda

  10. For every CO2 molecule entering the C3 cycle, the number of ATP & NADPH required

    (a)

    2ATP + 2NADPH

    (b)

    2ATP + 3NADPH

    (c)

    3ATP + 2NADPH

    (d)

    3ATP + 3NADPH

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