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Structural Organisation in Animals · Question 13

RE-NEET (UG) 2024MCQEasy📈 Topic in 38% papers+4−1
1

Which of the following statements is correct about the type of junction and their role in our body?

  1. Adhering junctions facilitate the cells to communicate with each other.
  2. Tight junctions help to stop substances from leaking across a tissue.
  3. Tight junctions help to perform cementing to keep neighbouring cells together.
  4. Gap junctions help to create gap between the cells and tissues.

Answer

(2) Tight junctions help to stop substances from leaking across a tissue.

Solution

Tight junctions help to stop substances from leaking across a tissue. So (2) is correct.

Adhering junctions perform cementing to keep neighbouring cells together, so (1) and (3) are wrong.

Gap junctions facilitate the cells to communicate with each other by connecting the cytoplasm of adjoining cells for rapid transfer of ions, small molecules and sometimes big molecules; they do not create gaps, so (4) is wrong.

Answer: (2)

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2

Which of the following is/are present in female cockroach? Choose the most appropriate answer from the options given below:

  1. B and D only
  2. B and E only
  3. A only
  4. A and C only
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3

In which of the following connective tissues, the cells secrete fibres of collagen or elastin? Choose the most appropriate answer from the options given below :

  1. B, C, D and E only
  2. A, B, C and E only
  3. B, C and D only
  4. A, C and D only
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4

Match List I with List II : Choose the correct answer from the options given below :

  1. A-II, B-III, C-I, D-IV
  2. A-II, B-IV, C-III, D-I
  3. A-III, B-I, C-II, D-IV
  4. A-III, B-IV, C-I, D-II
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5

Given below are two statements: In the light of the above statements, choose the correct answer from the options given below:

  1. Both Statement I and Statement II are false
  2. Statement I is true but Statement II is false
  3. Statement I is false but Statement II is true
  4. Both Statement I and Statement II are true
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6

Match List I with List II. Choose the correct answer from the options given below:

  1. A-II, B-III, C-I, D-IV
  2. A-II, B-I, C-IV, D-III
  3. A-III, B-IV, C-II, D-I
  4. A-I, B-II, C-IV, D-III
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7

In cockroach, excretion is brought about by – Choose the correct answer from the options given below :

  1. A, B and E only
  2. B, C and D only
  3. B and D only
  4. A and E only
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8

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

  1. Presence of anal styles
  2. Presence of sclerites
  3. Presence of anal cerci
  4. Dark brown body colour and anal cerci
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9

Which of the following is not a connective tissue?

  1. Blood
  2. Adipose tissue
  3. Cartilage
  4. Neuroglia
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10

Tegmina in cockroach, arises from

  1. Prothorax
  2. Mesothorax
  3. Metathorax
  4. Prothorax and Mesothorax
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11

Match List-I with List-II Choose the correct answer from the options given below:

  1. (a)-(iv), (b)-(iii), (c)-(i), (d)-(ii)
  2. (a)-(i), (b)-(ii), (c)-(iii), (d)-(iv)
  3. (a)-(ii), (b)-(i), (c)-(iv), (d)-(iii)
  4. (a)-(iii), (b)-(iv), (c)-(ii), (d)-(i)
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