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Nutrition in Animals Test - 13

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Nutrition in Animals Test - 13
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  • Question 1
    1 / -0
    Ideal function of vermiform appendix in human body is________.
    Solution
    The previous human species used to have raw food. So to digest cellulose, enzyme cellulase was secreted by the appendix in the intestine of the individual.
    So, the correct answer is 'Digestion of cellulose'
  • Question 2
    1 / -0
    ......... constitute the digestive system.
    Solution
    The digestive system is made up of digestive tract or gastrointestinal tract with liver, pancreas, gallbladder and other associated organs. The three major digestive glands include salivary glands in mouth region, exocrine pancreas and liver (both as endocrine and exocrine gland). These have lubricative, digestive and protective properties, which aid in digestion.
    Hence, the digestive tract with it's associated glands together constitute digestive system.The correct option is 'C'.
  • Question 3
    1 / -0
    The cavity present in the tooth is called
  • Question 4
    1 / -0
    The type of teeth used to tear a sugarcane is
    Solution
    • The canines are the pointed and the sharp teeth which are found in the mouth of the humans. 
    • These are the teeth that are used for tearing of the food. The sugarcane is made up of tough fibers. These fibers can be torn with the help of canine teeth. 
    • Thus, the correct answer is option B. 
  • Question 5
    1 / -0
    Pick the odd one out among the parts of the alimentary canal:
    Solution
    • The pancreas helps in digestion by secreting pancreatic juice in the small intestine. 
    • However, the pancreas is a gland and is not a part of the alimentary canal.
    • The alimentary canal is a muscular tube that extends from mouth to anus and includes the mouth, pharynx, esophagus, stomach, and intestines.
    So, option D is the correct answer.
  • Question 6
    1 / -0
    Which of the following organ system takes in food, breaks it down into smaller chemical units, and absorbs the nutrient molecules?
    Solution
    • The digestive system includes the alimentary canal and associated glands to carry out the digestion of food and release the energy stored in these food substances.
    • The nutrients from digested food are then absorbed in the small intestine of the alimentary canal and carried to different organs via the circulatory system.
    • The primary function of the respiratory system is to allow atmospheric oxygen from the air to enter the blood and carbon dioxide from the blood to exit into the air. 
    • The endocrine system includes endocrine glands and maintains the homeostasis of the body through hormonal actions. 
    • The nervous system serves in the reception of sensory input followed by their integration in the brain and spinal cord and generation of motor output to produce the response. 
    Thus, the correct answer is A.
  • Question 7
    1 / -0
    The site of initial digestion of carbohydrates is

    Solution
    The site of initial digestion of carbohydrates is the mouth which is represented by A in the figure. The salivary glands in the mouth secrete saliva, which helps to moisten the food, and the enzyme salivary amylase, which begins the process of breaking down the polysaccharides in the carbohydrate food after which food is swallowed and passed it down to the esophagus. 
    Thus, the correct answer is option A. 
  • Question 8
    1 / -0
    The food we take in our body travels through a long and complex path. Which starts from mouth and ends at anus? Which is the correct sequence of process on food in digestive system?
    Solution
    The process of nutrition involves different steps. There is ingestion of the food which is then digested. Digestion is a process which converts complex food substances to simpler ones. The digested food is then absorbed or assimilated and the waste products are removed by egestion. Nutrition involves ingestion, digestion, absorption, assimilation and egestion.
    Thus, the correct answer is option D. 
  • Question 9
    1 / -0
    The chemical digestion of food starts in the:
    Solution
    Chemical digestion of food starts in the mouth. The mouth has salivary glands that secrete an enzyme called amylase. This enzyme acts on complex carbohydrates present in the food and converts them into simpler forms.
  • Question 10
    1 / -0
    Which among the following parts of the digestive system produces chyme?
    Solution
    • Chyme is the partially digested soft, pulpy food, which is mixed with gastric juice in the stomach.
    • The mouth produces bolus created due to chewing and mixing of saliva.
    • In the small intestine the chyme is received and completely digested and nutrients are absorbed.
    • The liver is not a part of the alimentary tract and hence food doesn't enter in it. It only helps in digestion of fats.
    So, the correct answer is option C.
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