Biology today

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MTMTBIOLOGY TODAYBIOLOGY TODAY || MARCH ‘16MARCH ‘16 6363

II. Flora contains the account of habitat and distribution
of plants in a given area.
III. Flora provides an index to the plant species found in a
particular area.
IV. Monographs provide information for identifying the
species found in an area.
(a) I and II only (b) I , II and III only
(c) I and IV only (d) I only


  1. Match the mineral in column I with the enzyme activated
    by it in column II and choose the correct option.
    Column I Column II
    A. Magnesium I. Alcohol
    dehydrogenase
    B. Molybdenum II. Phosphoenol
    pyruvate carboxylase
    C. Zinc III. Nitrogenase
    (a) A - II, B - III, C - I
    (b) A - I, B - II, C - III
    (c) A - II, B - I, C - III
    (d) A - III,B - II, C - I

  2. A man whose father was colour blind marries a woman
    who had a colour blind mother and normal father. What
    percentage of male children of this couple will be colour
    blind?
    (a) 25% (b) 0%
    (c) 50% (d) 75%

  3. If 20 J of energy is trapped at producer level, then how
    much energy will be available to peacock as food in the
    following chain?
    Plant → Mice → Snake → Peacock
    (a) 0.02 J (b) 0.002 J
    (c) 0.2 J (d) 0.0002 J

  4. Label the parts marked in the human skull and select the
    correct option.


D

F
B

C

A

E

(a) A-temporal bone; B-parietal bone; C-sphenoid bone;
D-frontal bone; E-zygomatic bone; F-occipital bone
(b) A-frontal bone; B-zygomatic bone; C-occipital bone;
D-sphenoid bone; E-parietal bone; F-temporal bone
(c) A-sphenoid bone; B-occipital bone; C-zygomatic bone;
D-parietal bone; E-frontal bone; F-temporal bone
(d) A-sphenoid bone; B-zygomatic bone; C-occipital bone;
D-frontal bone; E-temporal bone; F-parietal bone


  1. Match the items listed under column-I with those given
    under column-II. Choose the appropriate option from the
    given choices.
    Column-I Column-II
    A. Residual volume (RV) p. 4000 mL - 4600 mL
    B. Inspiratory Reserve q. 1100 mL - 1200 mL
    Volume (IRV)
    C. Vital capacity (VC) r. 1000 mL - 1100 mL
    D. Expiratory Reserve s. 3000 mL - 3500 mL
    Volume (ERV)
    E. Inspiratory capacity (IC) t. 2500 mL - 3000 mL
    A B C D E
    (a) t q s r p
    (b) q r s t p
    (c) q t p r s
    (d) r p q s t

  2. Which of the following is correct?
    (a) Population change = (Birth + immigration) – (death +
    emigration)
    (b) Population change = (Birth + immigration) + (death +
    emigration)
    (c) Population change = (Birth + emigration) + (death –
    immigration)
    (d) Population change = (Birth – immigration) – (death +
    emigration)

  3. In this diagram showing the L.S. of an D
    C
    F


A

B
E

embryo of grass, identify the answer
having the correct combination of
alphabets with the right part.
(a) A - Epiblast, B - Scutellum,
C - Coleoptile, D - Radicle,
E - Coleorhiza, F - Shoot apex
(b) A - Root cap, B - Coleoptile,
C - Scutellum, D - Coleorhiza, E - Epiblast, F - Shoot
apex
(c) A - Epiblast, B - Radicle, C - Coleoptile, D - Scutellum,
E - Coleorhiza, F - Shoot apex
(d) A - Shoot apex, B - Epiblast, C - Coleorhiza, D - Scutellum,
E - Coleoptile, F - Radicle


  1. Given is the diagrammatic representation of the sectional
    view of cochlea. Select the correct option regarding it.


A

D C

B

(a) A - Organ of corti-responsible for maintenance of
balance of the body and posture.
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