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

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

Cotyledon of maize grain is called

• coleorhiza

• caleoptile

• scutellum

• scutellum

14.

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

• illeocaecal valve

• Pyloric sphincter

• Sphincter of Oddi

• Sphincter of Oddi

In the stomach, gastric acid is secreted by the

• parietal cells

• peptic cells

• acidic cells

• acidic cells

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

• Dorsal aorta

• Hepatic vein

• Hepatic portal vein

• Hepatic portal vein

Which of the following is not a stem modification?

• thorns of citrus

• tendrils of cucumber

• Flattened structures of Opuntia

• Flattened structures of Opuntia

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

• Chloroplasts

• Lysosomes

• Nuclei

• Nuclei

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

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

• Breathing using lungs

• Viviparity

• Warm-blooded nature

• Warm-blooded nature