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11th Standard Biology English Medium Free Online Test One Mark Questions with Answer Key 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. _______________ multiply and spread very fast by producing millions of asexual spores.

    (a)

    Bacteria

    (b)

    Pteridophytes

    (c)

    Fungi

    (d)

    Sea weeds

  2. ______________deals with the study about the root and shoot system.

    (a)

    Vegetative morphology

    (b)

    Reproductive morphology

    (c)

    External morphology

    (d)

    Internal morphology

  3. Butterfly shaped corolla is seen in ____________

    (a)

    physalis

    (b)

    clitoria

    (c)

    ixora

    (d)

    bryophyllum

  4. Presence of same number of perianth parts in different whorls of a flower____________.

    (a)

    Apetalous

    (b)

    Asepalous

    (c)

    Merosity

    (d)

    Isomerous

  5. Which of the following have an open circulatory system?

    (a)

    Frog

    (b)

    Earthworm

    (c)

    Pigeon

    (d)

    Cockroach

  6. The respiratory structures of insects are

    (a)

    tracheal tubes

    (b)

    gills

    (c)

    green glands

    (d)

    lungs

  7. Which of the following statement concerning the somatic division of the peripheral neural system is incorrect?

    (a)

    Its pathways innervate skeletal muscles

    (b)

    Its pathways are usually voluntary

    (c)

    Some of its pathways are referred to as reflex arcs

    (d)

    Its pathways always involve four neurons

  8. Silk is obtained from ________

    (a)

    Laccifer lacca

    (b)

    Nosema bombycis

    (c)

    Attacus ricini

    (d)

    Attacus mylitta

  9. The common bottle cork is a product of

    (a)

    Dermatogen

    (b)

    Phellogen

    (c)

    Xylem

    (d)

    Vascular cambium

  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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