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NEET Zoology MCQs: Class-XI and Class-XII



NEET Zoology MCQs: Class-XI and Class-XII

Which one of the following belongs to the family Muscidae?

[class-xi ]

  • Fire fly
  • Grasshopper
  • Cockroach
  • House fly
    • Correct Option: D  [ House fly ]

    Remark:

Match List-I with List-II.

List-I List-II
(A)Metamerism (I)Coelenterata
(B)Canal system (II)Ctenophora
(C)Comb plates (III)Annelida
(D)Cnidoblast (IV)Porifera
Choose the correct answer from the options given below:

[class-xi ]

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

    Remark:

Which one of the following organisms bears hollow and pneumatic long bones?

[class-xi ]

  • Neophron
  • Hemidactylus
  • Macropus
  • Ornithorhynchus
    • Correct Option: A  [ Neophron ]

    Remark:

Match List-I with List-II.

List-I List-II
(A)Physalia (I)Pearl oyster
(B)Limulus (II)Portuguese Man of War
(C)Ancylostoma (III)Living fossil
(D)Pinctada (IV)Hookworm
Choose the correct answer from the options given below:

[class-xi ]

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

    Remark:

Read the following statements.
A. Metagenesis is observed in Helminths.
B. Echinoderms are triploblastic and coelomate animals.
C. Round worms have organ-system level of body organization.
D. Comb plates present in ctenophores help in digestion.
E. Water vascular system is characteristic of Echinoderms.
Choose the correct answer from the options given below.

[class-xi ]

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

    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:

The organelles that are included in the endomembrane system are:

[class-xi ]

  • Endoplasmic reticulum, Mitochondria, Ribosomes and Lysosomes
  • Endoplasmic reticulum, Golgi complex, Lysosomes and Vacuoles
  • Golgi complex, Mitochondria, Ribosomes and Lysosomes
  • Golgi complex, Endoplasmic reticulum, Mitochondria and Lysosomes
    • Correct Option: B  [ Endoplasmic reticulum, Golgi complex, Lysosomes and Vacuoles ]

    Remark:

Identify the incorrect pair.

[class-xi ]

  • Alkaloids - Codeine
  • Toxin - Abrin
  • Lectins - Concanavalin A
  • Drugs - Ricin
    • Correct Option: D  [ Drugs - Ricin ]

    Remark:

The fruit fly has 8 chromosomes (2n) in each cell. During interphase of Mitosis if the number of chromosomes at G1 phase is 8, what would be the number of chromosomes after S phase?

[class-xi ]

  • 8
  • 16
  • 4
  • 32
    • Correct Option: A  [ 8 ]

    Remark:
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