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NEET Zoology MCQs: Class-XI and Class-XII



NEET Zoology MCQs: Class-XI and Class-XII

Match the following columns and select the correct option.

Column-I Column-II
(A)Gregarious, polyphagous pest (I)Asterias
(B)Adult with radial symmetry and larva with bilateral symmetry (II)Scorpion
(C)Book lungs (III)Ctenoplana
(D)Bioluminescence (IV)Locusta

[class-xi ]

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

    Remark:

Goblet cells of alimentary canal are modified from:

[class-xi ]

  • Squamous epithelial cells
  • Columnar epithelial cells
  • Chondrocytes
  • Compound epithelial cells
    • Correct Option: B  [ Columnar epithelial cells ]

    Remark:

Cuboidal epithelium with brush border of microvilli is found in:

[class-xi ]

  • lining of intestine
  • ducts of salivary glands
  • proximal convoluted tubule of nephron
  • eustachian tube
    • Correct Option: C  [ proximal convoluted tubule of nephron ]

    Remark:

If the head of cockroach is removed, it may live for few days because:

[class-xi ]

  • the supra-oesophageal ganglia of the cockroach are situated in ventral part of abdomen.
  • the cockroach does not have nervous system.
  • the head holds a small proportion of a nervous system while the rest is situated along the ventral part of its body.
  • the head holds a 1/3rd of a nervous system while the rest is situated along the dorsal part of its body.
    • Correct Option: C  [ the head holds a small proportion of a nervous system while the rest is situated along the ventral part of its body. ]

    Remark:

In cockroach, identify the parts of the foregut in correct sequence :-

[class-xi ]

  • Mouth → Oesophagus → Pharynx → Crop → Gizzard
  • Mouth → Crop → Pharynx → Oesophagus → Gizzard
  • Mouth → Gizzard → Crop → Pharynx → Oesophagus
  • Mouth → Pharynx → Oesophagus → Crop → Gizzard
    • Correct Option: D  [ Mouth → Pharynx → Oesophagus → Crop → Gizzard ]

    Remark:

Match the following columns with reference to cockroach and select the correct option:

Column-I Column-II
(A)Grinding of the food particles (I)Hepatic caecal
(B)Secrete gastric juice (II)10th segment
(C)10 pairs (III)Proventriculus
(D)Anal cerci (IV)Spiracles
(V)Alary muscles
Choose the correct answer from the options given below:

[class-xi ]

  • (A)-(III), (B)-(I), (C)-(IV), (d)-(II)
  • (A)-(IV), (B)-(III), (C)-(V), (d)-(II)
  • (A)-(I), (B)-(IV), (C)-(III), (d)-(II)
  • (A)-(II), (B)-(III), (C)-(I), (d)-(IV)
    • Correct Option: A  [ (A)-(III), (B)-(I), (C)-(IV), (d)-(II) ]

    Remark:

Identify the correct statement with reference to human digestive system.

[class-xi ]

  • Ileum opens into small intestine.
  • Serosa is the innermost layer of the alimentary canal.
  • Ileum is a highly coiled part.
  • Vermiform appendix arises from duodenum.
    • Correct Option: C  [ Ileum is a highly coiled part. ]

    Remark:

The enzyme enterokinase helps in conversion of:

[class-xi ]

  • protein into polypeptides
  • trypsinogen into trypsin
  • caseinogen into casein
  • pepsinogen into pepsin
    • Correct Option: B  [ trypsinogen into trypsin ]

    Remark:

Intrinsic factor that helps in the absorption of vitamin B12 is secreted by:

[class-xi ]

  • Goblet cells
  • Hepatic cells
  • Oxyntic cells
  • Chief cells
    • Correct Option: C  [ Oxyntic cells ]

    Remark:

The proteolytic enzyme rennin is found in:

[class-xi ]

  • Intestinal juice
  • Bile juice
  • Gastric juice
  • Pancreatic juice
    • Correct Option: C  [ Gastric juice ]

    Remark:
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