Subject

Biology

Class

NEET Class 12

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 Multiple Choice QuestionsMultiple Choice Questions

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11.

Which one of the following statements is wrong?

  • Golden algae are also called desmids

  • Eubacteria are also called false bacteria

  • Phycomycetes are also called algal fungi

  • Phycomycetes are also called algal fungi


B.

Eubacteria are also called false bacteria

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12.

Water vapour comes out from the plant leaf through stomatal opening. through the same stomatal opening.  carbon dioxide diffuses into the plant during photosynthesis. Reason out the above statements using the following options

  • Both processes can happen together because the diffusion coefficient of water and CO2 is different

  • The above processes happen only during night time

  • One process occurs during day time and other at night

  • One process occurs during day time and other at night

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13.

Cotyledon of maize grain is called

  • coleorhiza

  • caleoptile

  • scutellum

  • scutellum

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14.

Which of the following guards the opening of hepatopancreatic duct into the duodenum?

  • illeocaecal valve

  • Pyloric sphincter

  • Sphincter of Oddi

  • Sphincter of Oddi

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15.

In the stomach, gastric acid is secreted by the

  • parietal cells

  • peptic cells

  • acidic cells

  • acidic cells

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16.

In mammals, which blood vessel would normally carry largest amount of urea?

  • Dorsal aorta

  • Hepatic vein

  • Hepatic portal vein

  • Hepatic portal vein

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17.

Which of the following is not a stem modification?

  • thorns of citrus

  • tendrils of cucumber

  • Flattened structures of Opuntia

  • Flattened structures of Opuntia

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18.

Which one of the following cell organelles is enclosed by a single membrane?

  • Chloroplasts

  • Lysosomes

  • Nuclei

  • Nuclei

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19.

Which one of the following statements is wrong?

  • cellulose is a polysaccharide

  • Uracil is a pyrimidine

  • Glycine is a sulphur containing amino acid

  • Glycine is a sulphur containing amino acid

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20.

Which one of the following characteristics is not shared by birds and mammals?

  • Breathing using lungs

  • Viviparity

  • Warm-blooded nature

  • Warm-blooded nature

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