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11th Standard Biology English Medium Free Online Test Book Back One Mark Questions - Part Three

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. 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

  3. Aggregate fruit develops from

    (a)

    Multicarpellary, apocarpous ovary

    (b)

    Multicarpellary, syncarpous ovary

    (c)

    Multicarpellary ovary

    (d)

    Whole inflorescence

  4. In meiosis crossing over is initiated at

    (a)

    Diplotene

    (b)

    Pachytene

    (c)

    Leptotene

    (d)

    Zygotene

  5. Cladogram considers the following characters

    (a)

    Physiological and Biochemical

    (b)

    Evolutionary and Phylogenetic

    (c)

    Taxonimic and systematic

    (d)

    None of the above

  6. Pneumatic bones are seen in

    (a)

    Mammalia

    (b)

    Aves

    (c)

    Reptilia

    (d)

    Sponges

  7. Absorption of glycerol, fatty acids and monoglycerides takes place by

    (a)

    Lymph vessels within villi

    (b)

    Walls of stomach

    (c)

    Colon

    (d)

    Capillaries within villi

  8. During inspiration, the diaphragm

    (a)

    expands

    (b)

    unchanged

    (c)

    relaxes to become dome-shaped

    (d)

    contracts and flatten

  9. Acetabulum is located in

    (a)

    collar bone

    (b)

    hip bone

    (c)

    shoulder bone

    (d)

    thigh bone

  10. All of the following are associated with the myelin sheath except

    (a)

    Faster conduction of nerve impulses

    (b)

    Nodes of Ranvier forming gaps along the axon

    (c)

    Increased energy output for nerve impulse conduction

    (d)

    Saltatory conduction of action potential

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