Digestive And Excretory Systems Quiz

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| By Abelardo10
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Abelardo10
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Questions: 10 | Attempts: 3,504

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Digestive And Excretory Systems Quiz - Quiz

Digestive and Excretory Systems Quiz


Questions and Answers
  • 1. 

    Large organ that produces bile:

    • A.

      Gallbladder

    • B.

      Liver

    • C.

      Pancreas

    • D.

      Kidney

    Correct Answer
    B. Liver
    Explanation
    The liver is the correct answer because it is a large organ that produces bile. Bile is a substance that aids in the digestion and absorption of fats in the small intestine. The liver also performs many other important functions in the body, such as detoxifying harmful substances, storing vitamins and minerals, and producing proteins necessary for blood clotting. The gallbladder is a small organ that stores bile produced by the liver, but it does not actually produce bile itself. The pancreas produces digestive enzymes and hormones, while the kidney filters waste products from the blood.

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  • 2. 

    An organ that removes and filters waste products from the blood:

    • A.

      Gallbladder

    • B.

      Liver

    • C.

      Pancreas

    • D.

      Kidney

    Correct Answer
    D. Kidney
    Explanation
    The kidney is responsible for removing and filtering waste products from the blood. It plays a crucial role in maintaining the body's overall balance by filtering out toxins, excess water, and other waste materials from the bloodstream. The filtered waste is then eliminated from the body through urine. The liver, gallbladder, and pancreas have different functions and are not primarily involved in the removal and filtration of waste products from the blood.

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  • 3. 

    Most absorption of nutrients occurs in the:

    • A.

      Small intestine

    • B.

      Stomach

    • C.

      Large Intestine

    • D.

      Mouth

    Correct Answer
    A. Small intestine
    Explanation
    The small intestine is responsible for the majority of nutrient absorption in the body. It has a large surface area due to the presence of villi and microvilli, which increase the absorption capacity. The small intestine also produces enzymes and has a highly efficient transport system to facilitate the absorption of nutrients such as carbohydrates, proteins, fats, and vitamins. Additionally, the small intestine has a pH that is conducive to enzymatic activity and nutrient absorption. In contrast, the stomach primarily functions in the digestion of food, while the large intestine mainly absorbs water and electrolytes. The mouth plays a role in the initial breakdown of food through chewing and saliva production, but nutrient absorption does not occur there.

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  • 4. 

    What is removed from undigested food while it is passing through the large intestine?

    • A.

      Bacteria

    • B.

      Enzymes

    • C.

      Nutrients

    • D.

      Water

    Correct Answer
    D. Water
    Explanation
    The large intestine is responsible for absorbing water from the undigested food. As the food moves through the large intestine, water is removed, which helps in the formation of solid waste. Bacteria, enzymes, and nutrients are not primarily removed from the undigested food in the large intestine.

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  • 5. 

    Partially digested food is known as:

    • A.

      Acid

    • B.

      Chyme

    • C.

      Vomit

    • D.

      Diarrhea

    Correct Answer
    B. Chyme
    Explanation
    Chyme is the partially digested food that moves from the stomach to the small intestine. It is a thick, semi-fluid mixture that is created through the mechanical and chemical digestion processes in the stomach. Chyme contains gastric juices, enzymes, and partially broken down food particles. It is further broken down and absorbed in the small intestine to extract nutrients for the body.

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  • 6. 

    Which of the following is the muscular tube that carries food from our mouth into our stomach:

    • A.

      Esophagus

    • B.

      Epiglottis

    • C.

      Trachea

    • D.

      Tibia

    Correct Answer
    A. Esophagus
    Explanation
    The esophagus is the correct answer because it is the muscular tube that connects the mouth to the stomach, allowing food to pass through and be digested. The epiglottis is a flap of tissue that prevents food from entering the windpipe, the trachea, while the tibia is a bone in the lower leg and is not involved in the digestion process.

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  • 7. 

    Which of the following is a small, saclike organ that stores bile:

    • A.

      Liver

    • B.

      Gallbladder

    • C.

      Pancreas

    • D.

      Kidney

    Correct Answer
    B. Gallbladder
    Explanation
    The gallbladder is a small, saclike organ that stores bile. Bile is a substance produced by the liver and is necessary for the digestion and absorption of fats in the small intestine. The gallbladder stores bile until it is needed for digestion. When food containing fats enters the small intestine, the gallbladder contracts and releases bile into the digestive system to aid in the breakdown and absorption of fats. Therefore, the correct answer is the gallbladder.

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  • 8. 

    Which of the following is the organ that produces insulin:

    • A.

      Liver

    • B.

      Gallbladder

    • C.

      Pancreas

    • D.

      Kidney

    Correct Answer
    C. Pancreas
    Explanation
    The pancreas is the organ that produces insulin. Insulin is a hormone that regulates the amount of glucose in the blood. It is produced by the beta cells in the pancreas and plays a crucial role in maintaining normal blood sugar levels. Insulin helps to transport glucose from the bloodstream into the cells, where it can be used as a source of energy. Without insulin, the body cannot effectively regulate blood sugar levels, leading to conditions like diabetes.

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  • 9. 

    What is the flap of tissue called that closes the opening to the trachea, allowing food to pass into the esophagus and no air to pass into the lung?

    • A.

      Uvula

    • B.

      Tongue

    • C.

      Epiglottis

    • D.

      Cornea

    Correct Answer
    C. Epiglottis
    Explanation
    The flap of tissue that closes the opening to the trachea, allowing food to pass into the esophagus and preventing air from entering the lungs, is called the epiglottis. It is located at the base of the tongue and acts as a protective mechanism during swallowing to ensure that food goes down the esophagus and not into the respiratory system.

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  • 10. 

    Which gland produces a fluid containing enzymes that begin chemical digestion

    • A.

      Prostate Gland

    • B.

      Salivary Gland

    • C.

      Pituitary Gland

    • D.

      Thyroid Gland

    Correct Answer
    B. Salivary Gland
    Explanation
    The salivary gland produces a fluid containing enzymes that begin chemical digestion. Saliva, which is produced by the salivary glands, contains enzymes such as amylase that break down carbohydrates in the mouth. This process is the first step in the chemical digestion of food, as the enzymes in saliva help to break down complex molecules into smaller, more easily digestible components.

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