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Structural Organisation in Animals : Class-XI


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NEET PYQs on Structural Organisation in Animals : Class-XI


Given below are two statements:
Statement I: Ligaments are dense irregular tissue
Statement II: Cartilage is dense regular tissue.
In the light of above statements choose the correct answer from the option given below:

[class-xi ]

  • Statement I is false but Statement III is true.
  • Both Statement I and II are true
  • Both Statement I and II are false
  • Statement I is true but Statement II is false
    • Correct Option: C  [ Both Statement I and II are false ]

    Remark:

Which of the following is characteristic feature of cockroach regarding sexual dimorphism?

[class-xi ]

  • Presence of anal cerci
  • Dark brown body colour and anal cerci
  • Presence of anal styles
  • Presence of sclerites
    • Correct Option: C  [ Presence of anal styles ]

    Remark:

Match List-I with List-II.

List-I List-II
(A)Mast cells (I)Ciliated epithelium
(B)Inner surface of bronchiole (II)Areolar connective tissue
(C)Blood (III)Cuboidal epithelium
(D)Tubular parts of nephron (IV)specialised connective tissue
Choose the correct answer from the options given below:

[class-xi ]

  • A-III, B-IV, C-II, D-I
  • A-I, B-II, C-IV, D-III
  • A-II, B-III, C-I, D-IV
  • A-II, B-I, C-IV, D-III
    • Correct Option: D  [ A-II, B-I, C-IV, D-III ]

    Remark:

In cockroach, excretion is brought about by:
A.Phallic gland
B.Urecose gland
C.Ncphrocytes
D.Fat body
E.Collatcrial glands
Choose the correct answer from the options given below:

[class-xi ]

  • B and D only
  • A and E only
  • A, B and E only
  • B, C and D only
    • Correct Option: D  [ B, C and D only ]

    Remark:

Which of the following is present between the adjacent bones of the vertebral column?

[class-xi ]

  • Intercalated discs
  • Cartilage
  • Areolar tissue
  • Smooth muscle
    • Correct Option: B  [ Cartilage ]

    Remark:

Which of the following is not a connective tissue?

[class-xi ]

  • Blood
  • Adipose tissue
  • Cartilage
  • Neuroglia
    • Correct Option: D  [ Neuroglia ]

    Remark:

Tegmina in cockroach, arises from

[class-xi ]

  • Prothorax
  • Mesothorax
  • Metathorax
  • Prothorax and Mesothorax
    • Correct Option: B  [ Mesothorax ]

    Remark:

Match List-I with List-II.

List-I List-II
(A)Bronchioles (I)Dense Regular Connective Tissue
(B)Goblet cell (II)Loose Connective Tissue
(C)Tendons (III)Glandular Tissue
(D)Adipose Tissue (IV)Ciliated Epithelium
Choose the correct answer from the options given below:

[class-xi ]

  • A-I, B-II, C-III, D-IV
  • A-II, B-I, C-IV, D-III
  • A-III, B-IV, C-II, D-I
  • A-IV, B-III, C-I, D-II
    • Correct Option: D  [ A-IV, B-III, C-I, D-II ]

    Remark:

Which of the following characteristics is incorrect with respect to cockroach?

[class-xi ]

  • A ring of gastric caeca is present at the junction of midgut and hind gut.
  • Hypopharynx lies within the cavity enclosed by the mouth parts.
  • In females, 7th - 9th sterna together form a genital pouch.
  • 10th abdominal segment in both sexes, bears a pair of anal cerci.
    • Correct Option: A  [ A ring of gastric caeca is present at the junction of midgut and hind gut. ]

    Remark:

Which of the following statements wrongly represents the nature of smooth muscle?

[class-xi ]

  • These muscle have no striations
  • They are involuntary muscles
  • Communication among the cells is performed by intercalated discs
  • These muscles are present in the wall of blood vessels
    • Correct Option: C  [ Communication among the cells is performed by intercalated discs ]

    Remark:
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