Saliva brings about digestion. It helps to disintegrate food and operates in keeping the mouth clean. In addition, it also helps wash away bacteria and other food substances. It regulates the quantity of bad and good bacteria in the mouth too. We have three pairs of salivary glands – parotid glands, sublingual gland and the submandibular gland.
1. The duct of Bartholin is linked with
(a) sublingual glands
(b) maxillary glands
(c) parotid glands
(d) infraorbital glands
Answer: (a)
2. Largest salivary gland is
(a) submaxillary
(b) parotid
(c) sublingual
(d) infraorbital
Answer: (b)
3. In rabbits, the number of salivary glands present are
(a) 5 pairs
(b) 4 pairs
(c) 3 pairs
(d) 2 pairs
Answer: (b)
4. Tongue is attached to the floor of buccal cavity by
(a) falciform ligament
(b) frenulum
(c) lingual papilla
(d) mesentery
Answer: (b)
5. Salivary glands are absent in
(a) Musca domestica
(b) Blatta orientalis
(c) Anopheles maculipennis
(d) Rana hexadactyla
Answer: (d)
6. Nuhn’s glands are present on
(a) stomach
(b) tongue
(c) skin
(d) intestine
Answer: (b)
7. Animals eating own faecal matter are
(a) Detritivorous
(b) Coprophagous
(c) Frugivorous
(d) Sanguivorous
Answer: (b)
8. Microphagial nutrition takes place in
(a) Hydra
(b) Paramecium
(c) Insects
(d) Euglena
Answer: (b)
9. Osmotrophy is found in
(a) Taenia
(b) Pila
(c) Palaemon
(d) Asterias
Answer: (a)
10. The alimentary canal is typically longer in
(a) herbivores
(b) carnivores
(c) insectivores
(d) omnivores
Answer: (a)
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