Subject

Biology

Class

NEET Class 12

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 Multiple Choice QuestionsMultiple Choice Questions

1.

Secretion of gastric juice is stimulated by

  • pepsin

  • gastrin

  • renin

  • secretin


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2.

Which one shows bio-luminescence?

  • Noctiluca

  • Polystomella

  • Entamoeba

  • Suctoria


A.

Noctiluca

Noctiluca is a marine and pelagic dinoflagellate which shows bio-luminescence. At night, it produces the effect of burning of sea. The luminescence is caused by a bio-luminescent luciferin,which under the influence of an
enzyme luciferase emits light.


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3.

Mantle, foot and shell are the characteristics of

  • Nautilus

  • Echinus

  • Limulus

  • Euplectella


4.

Protists are

(i) unicellular and prokaryote

(ii) unicellular and eukaryote

(iii) multicellular and eukaryote

(iv) autotroph or heterotroph

  • (i), (ii) and (iii)

  • (ii), (iii) and (iv)

  • (iii), (iv)

  • (ii), (iv)


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5.

Pepsin is inactivated at pH

  • below 3

  • below 2

  • above 5

  • above 3


6.

Which one affects liver, muscle and adipose tissue?

  • Androgen

  • Insulin

  • Progesterone

  • Glucagon


7.

Inner lining of blood vessels is formed by

  • ciliated epithelium

  • squamous epithelium

  • cubical epithelium

  • columnar epithelium


8.

Nucleated RBC is present in

  • man

  • rat

  • frog

  • rabbit


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9.

The main excretory organ of prawn is

  • green gland

  • flame cell

  • Malphigian tubule

  • nephridia


10.

Moulting hormone is secreted by

  • corpora cardiacum

  • prothoracic gland

  • corpora allata

  • neurosecretory hormone


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