Food And Digestive System Quiz For Grade 4

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  • 1/10 Questions

    Breaking down of food is called

    • Combustion
    • Digestion
    • Mixing
    • Ingestion
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About This Quiz

Are you studying in class 4? What do you know about food and the digestion of food? Try the quiz below and test your knowledge regarding the human digestive system. This system comprises the gastrointestinal (GI) tract, liver, pancreas, and gallbladder. What else do you know about human digestion? The quiz covers questions related to digestion and the digestive system. Do you think you can answer them all? Let's see if you can ace this quiz easily or not.

Food And Digestive System Quiz For Grade 4 - Quiz

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  • 2. 

    Digestion starts in the

    • Stomach

    • Mouth

    • Small intestine

    • Trachea

    Correct Answer
    A. Mouth
    Explanation
    Digestion starts in the mouth. This is where the process of breaking down food begins. The mouth contains teeth that mechanically break down food into smaller pieces, and saliva is produced to moisten the food and begin the chemical breakdown of carbohydrates. After chewing and mixing the food with saliva, it is then swallowed and travels down the esophagus into the stomach, where further digestion occurs. Therefore, the mouth is the correct answer as it is the initial site of digestion.

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  • 3. 

    Bile is secreted by the

    • Liver

    • Gall bladder

    • Pancreas

    • Salivary glands

    Correct Answer
    A. Liver
    Explanation
    Bile is a digestive fluid that helps in the breakdown and absorption of fats. It is produced by the liver and stored in the gallbladder. When we consume fatty foods, the gallbladder releases bile into the small intestine to aid in digestion. The liver is responsible for the production of bile, making it the correct answer in this case.

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  • 4. 

    Finger like projections in the small intestine are

    • Villi

    • Glands

    • Mucous

    • Sac

    Correct Answer
    A. Villi
    Explanation
    Villi are finger-like projections in the small intestine that increase the surface area for absorption of nutrients. They are covered in microvilli, which further increase the surface area. The villi contain blood vessels and lacteals, which help in the absorption of nutrients into the bloodstream. This structure allows for efficient absorption of nutrients from digested food, making villi an essential feature of the small intestine.

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  • 5. 

    Waste is stored in the _________ before it gets expelled.

    • Anus

    • Rectum

    • Small intestine

    • Anal

    Correct Answer
    A. Rectum
    Explanation
    The waste produced during the digestion process is stored in the rectum before it is expelled from the body. The rectum is the final section of the large intestine where feces are accumulated and held until they are ready to be eliminated through the anus.

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  • 6. 

    Food stays in the stomach for about __________ hours.

    • 5-6 hours

    • 24 hours

    • 2-4 hours

    • 4-6 hours

    Correct Answer
    A. 2-4 hours
    Explanation
    The correct answer is 2-4 hours. After we eat, the food enters the stomach where it is broken down by stomach acid and digestive enzymes. This process usually takes about 2-4 hours. After this, the partially digested food moves into the small intestine for further digestion and absorption of nutrients. Therefore, food stays in the stomach for approximately 2-4 hours before it continues its journey through the digestive system.

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  • 7. 

    Food in the mouth is called

    • Chyme

    • Mushy food

    • Bolus

    • Saliva

    Correct Answer
    A. Bolus
    Explanation
    When food enters the mouth, it is chewed and mixed with saliva to form a soft, rounded mass called a bolus. The bolus is then swallowed and moves down the esophagus into the stomach. Therefore, the correct answer is bolus.

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  • 8. 

    The largest salivary glands are

    • Sublingual glands

    • Parotid glands

    • Submandibular glands

    • Columnar glands

    Correct Answer
    A. Parotid glands
    Explanation
    The parotid glands are the largest salivary glands in the human body. They are located near the ears, in front of the earlobes. These glands produce saliva, which helps in the digestion process by moistening food and breaking it down. The parotid glands secrete saliva into the mouth through a duct called Stensen's duct. These glands are responsible for producing the majority of the saliva in the mouth.

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  • 9. 

    Small intestine is about ______ feet long.

    • 20

    • 25

    • 27

    • 30

    Correct Answer
    A. 25
    Explanation
    The small intestine is approximately 25 feet long.

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  • 10. 

    Carbohydrates are broken down in the

    • Stomach

    • Small intestine

    • Mouth

    • All of these

    Correct Answer
    A. Mouth
    Explanation
    Carbohydrates are broken down in the mouth through the process of chewing and mixing with saliva. Saliva contains an enzyme called amylase, which begins the breakdown of carbohydrates into simpler sugars. This initial digestion in the mouth prepares the carbohydrates for further breakdown and absorption in the small intestine. Therefore, the correct answer is "Mouth".

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  • Current Version
  • Dec 14, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Oct 08, 2010
    Quiz Created by
    Parameshwari
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