BIOLOGY TIMES — January 2018

(ff) #1

(b) Nephridia in earthworm, Malpighian
tubules in cockroach and urinary tubules in
rat
(c) Antennae of cockroach, tympanum of frog
and clitellum of earthworm
(d) Typhlosole in earthworm, intestinal villa in
rat and contractile vacoule in amoeba.
12.Which of the following labeled structure
represents lower lip in given diagram?


(a) A (b) B
(c) C (d) D



  1. Study the given table and identify how many
    joints are correctly matched?
    List I List II
    (A) Gliding joint Between the carpals
    (B) Cartilaginous Between the adjacent
    joint vertebrae
    (C) Pivot joint Between atlas and axis
    (D) Hinge joint Knee joint
    (E) Fibrous joint Between skull bones
    (F) Ball and Between humerus and
    socket joint pectoral girdle
    (a) Two (b) Four
    (c) Five (d) Six

  2. Given below is a diagrammatic view of ear. Which
    of the following option is correctly representing A
    to D?


(a) A-Temporal bone, B-Incus, C-Semicircular
canal, D-Pinna
(b) A-Temporal bone, B-Stapes, C-Cochlea,
D-Tympanic membrane


(c) A-Parietal bone, B-Stapes, C-Vestibule,
D-Ear drum
(d) A-Parietal bone, B-Malleus, C-Vestibule,
D-Eustachian tube


  1. Which of the following pairs of chemical
    substances, is correctly categorised?
    (a) Calcitonin - thyroid hormones
    and thymosin
    (b) Pepsin - two digestive enzymes
    and prolactin secreted in stomach
    (c) Troponin - complex muscles in
    and myosin striated muscles
    (d) Secretin - polypeptide hormones
    and rhodopsin

  2. Assertion: Somatic fusion or protoplast fusion,
    in which two distinct species of plants are fused.
    Reason: The source of protoplasts are leaves,
    callus culture, cell suspension culture and
    preconditioned plant materials
    (a) Both Assertion and Reason are true and
    Reason is the correct explanation of Assertion.
    (b) Both Assertion and Reason are true and
    but Reason is not the correct explanation of
    Assertion.
    (c) Assertion is true but Reason is false.
    (d) Both Assertion and Reason are false.

  3. Which one of the following options gives one
    correct example each of convergent evolution and
    divergent evolution?
    Divergent evolution Convergent Evolution
    (a) Bones of Eyes of octopus and
    forelimbs of mammals
    whale and cheetah
    (b) Wings of butterfly Brain and heart of
    and Sparrow vertebrates
    (c) Potato and sweet Thorn of bougainvillea
    potato and tendrils of cucurbita
    (d) Flippers of Wings of
    penguins and butterfly and birds
    Dolphins

  4. Which one of the following statements is not
    correct?
    (a) Retinal is the light absorbing portion of
    visual photo pigments.
    (b) In retina the rods have the photo-pigment
    rhodopsin while cones have three different
    photo-pigments.
    (c) Retinal is a derivative of vitamin C.
    (d) Rhodopsin is the purplish red protein
    present in rods only.

Free download pdf