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Nutrition in Animals Test - 17

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Nutrition in Animals Test - 17
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  • Question 1
    1 / -0
    Cellulose digestion in ruminants occurs in ________.
    Solution
    Cellulose digestion in ruminants like cattle occurs in the rumen or foregut that harbors bacteria that bring about breakdown of cellulose through fermentation. Here, mechanical digestion also occurs by converting ingested food into cud.
    So, the correct answer is option A
  • Question 2
    1 / -0
    Total number of canines in permanent dental set of human is
    Solution
    In humans, there are thirty-six permanent teeth, consisting of six maxillary and six mandibular molars, four maxillary and four mandibular premolars, two maxillary and two mandibular canines, four maxillary and four mandibular incisors.
    So, option A is the correct option.
  • Question 3
    1 / -0
    Wisdom tooth is the _____________.
    Solution
    A wisdom tooth or third molar is one of the three molars per quadrant of the human dentition. It is the most posterior of the three. Wisdom teeth generally erupt between the ages of 17 and 25.
    So, the correct answer is 'third molar tooth'.
  • Question 4
    1 / -0
    Which one/two part of compound stomach of cattle are rich in methanogens ?
    Solution
    Ruminants mammals are those mammals which ferment food in a specialized stomach prior to digestion. Rumen part of the compound stomach of these animals is rich in methanogen bacteria. Cellulose is digested in this part of the stomach.
    Thus, the correct answer is option D.
  • Question 5
    1 / -0
    Eye teeth are
    Solution
    Canines in the upper arch are also often called “eye teeth,” which, when you come to think of it, is kind of a weird name for them. But the most common explanation is actually pretty simple: these teeth lie directly below the eye sockets.

    So, the correct option is 'Upper canines'.
  • Question 6
    1 / -0
    The primary dentition in humans differs from permanent dentition in not having one of the following types of teeth:
    Solution
    20 primary teeth are lost as the child grows and is replaced by 32 permanent teeth. Primary dentition comprises 8 incisors, 4 canines, and 8 molars while permanent teeth comprise 8 premolars in addition to newly formed 8 incisors, 4 canines, and 12 molars. Premolars take the place of molars present in the primary dentition.
    Thus, the correct answer is option B.
  • Question 7
    1 / -0
    During cellulose fermentation by anaerobic bacteria in rumen and reticulum, cellulose is mainly changed into:
    Solution
    Cellulose is broken down to volatile short-chain fatty acids in ruminants, during cellulose fermentation by anaerobic bacteria.
    Thus, the correct answer is option D.
  • Question 8
    1 / -0
    Which of the following pairs of teeth performs a common function as stated against it?
    Solution

    Incisors help in holding & cutting the food.
    Canines help in tearing the food.
    Molars and premolars both help in grinding the food.
    So the correct answer is option C.
  • Question 9
    1 / -0
    Which teeth of humans are used for ripping and tearing?
    Solution
    • Canines are dagger-shaped and lie behind the incisors. These are used for ripping and tearing. 
    • Incisors are sharp, pointed, chisel-shaped and used for cutting.
    • Premolar and molars are used for grinding food. 
    • so, the correct option is A.
  • Question 10
    1 / -0
    Which of the following is NOT a physical process of digestion?
    Solution
    (A) Mastication is the process of chewing food in the mouth.
    (B) Churning is the process in which the stomach mixes its digestive enzyme with food.
    (C) Peristalsis is a wave-like muscle contraction that helps in the movement of food through organs like the oesophagus. 
    (D) Emulsification is the process of mixing bile with fat to change it into micelles. Emulsification is a chemical process.
    So, the correct option is D.
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