8.2 Secretion & Digestion

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Dhiraj Kumar
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  • 1/10 Questions

    Which of the following secretions comes from the liver?

    • Lipase
    • Bile
    • Nuclease
    • Amylase
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About This Quiz

Anatomy & Physiology
Unit 8
8.2 - I CAN describe the location and functions of the secretions that help with digestion.

8.2 Secretion & Digestion - Quiz

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  • 2. 
    What organ secretes the chemicals that help us digest fats, like this butter? - ProProfs

    What organ secretes the chemicals that help us digest fats, like this butter?

    • Stomach

    • Liver

    • Salivary glands

    • Lungs

    Correct Answer
    A. Liver
    Explanation
    The liver secretes the chemicals that help us digest fats, like butter. The liver produces bile, which is stored in the gallbladder and released into the small intestine when we eat fatty foods. Bile helps to break down fats into smaller molecules, making it easier for our bodies to absorb and digest them. The liver also plays a crucial role in metabolizing and detoxifying various substances in the body.

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  • 3. 

    Parietal cells make ____________, which helps pepsinogen to digest _____________. 

    • Hydrochloric acid; proteins

    • Hydrochloric acid; lipids

    • Bile; lipids

    • Bile; carbohydrates

    Correct Answer
    A. Hydrochloric acid; proteins
    Explanation
    Parietal cells in the stomach produce hydrochloric acid, which plays a crucial role in the digestion of proteins. Hydrochloric acid helps to activate the enzyme pepsinogen, converting it into its active form, pepsin. Pepsin is responsible for breaking down proteins into smaller peptides, facilitating their digestion and absorption in the small intestine. Therefore, the correct answer is hydrochloric acid; proteins.

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  • 4. 

    What do the parietal cells in the stomach make?

    • Hydrochloric acid

    • Pepsinogen

    • Mucus

    • Bile

    Correct Answer
    A. Hydrochloric acid
    Explanation
    The parietal cells in the stomach produce hydrochloric acid. This acid plays a crucial role in the digestion process by breaking down food and killing bacteria that may be present in the stomach. Hydrochloric acid also helps to activate pepsinogen, an enzyme that helps in the digestion of proteins. Additionally, the acid creates an acidic environment in the stomach, which is necessary for the optimal functioning of digestive enzymes. Overall, the production of hydrochloric acid by parietal cells is essential for the proper digestion and absorption of nutrients in the stomach.

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  • 5. 
    The DNA found within chicken meat is digested by which of the following? - ProProfs

    The DNA found within chicken meat is digested by which of the following?

    • Nuclease

    • Lipase

    • Bile

    • Amylase

    Correct Answer
    A. Nuclease
    Explanation
    Nuclease is the correct answer because it is an enzyme that breaks down DNA molecules into smaller nucleotide fragments. When chicken meat is consumed, the nuclease present in the digestive system helps in breaking down the DNA found in the meat into smaller components that can be easily absorbed and utilized by the body. Lipase is an enzyme that breaks down fats, bile aids in the digestion and absorption of fats, and amylase breaks down carbohydrates, so they are not directly involved in the digestion of DNA.

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  • 6. 

    What would happen if the mucus cells in the stomach were not working properly?

    • The amylase would break down carbohydrates faster

    • Bile would back up into the liver

    • The hydrochloric acid would eat away at the stomach lining

    • The pepsin would not digest proteins properly

    Correct Answer
    A. The hydrochloric acid would eat away at the stomach lining
    Explanation
    If the mucus cells in the stomach were not working properly, the protective layer of mucus that coats the stomach lining would be reduced. This would result in the hydrochloric acid, which is naturally present in the stomach to aid in digestion, being able to directly contact and damage the stomach lining. Over time, this can lead to the erosion of the stomach lining and the development of ulcers.

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  • 7. 

    What type of organic molecule is mainly digested in the stomach?

    • Lipids

    • Nucleic Acid

    • Proteins

    • Carbohydrates

    Correct Answer
    A. Proteins
    Explanation
    Proteins are mainly digested in the stomach. The stomach secretes hydrochloric acid and enzymes, such as pepsin, that break down proteins into smaller peptides. This process begins the digestion of proteins, which is later completed in the small intestine with the help of other enzymes. Lipids, nucleic acids, and carbohydrates are digested in different parts of the digestive system, such as the small intestine and pancreas.

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  • 8. 

    If a person was unable to secrete amylase, what would probably happen?

    • The stomach lining would be destroyed

    • Proteins would not be physically digested

    • Proteins would not be chemically digested

    • Carbohydrates would not be chemically digested

    Correct Answer
    A. Carbohydrates would not be chemically digested
    Explanation
    If a person is unable to secrete amylase, which is responsible for breaking down carbohydrates, it would result in carbohydrates not being chemically digested. Amylase is an enzyme that helps in the breakdown of complex carbohydrates into simpler sugars. Without amylase, the body would struggle to break down carbohydrates effectively, leading to difficulties in absorbing and utilizing them for energy. This could potentially result in digestive issues and a lack of essential nutrients from carbohydrates.

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  • 9. 

    This cracker is chemically digested by ____________ in the ______________.

    • Amylase; mouth

    • Lipase; small intestine

    • Mucus; stomach

    • Nuclease; pancreas

    Correct Answer
    A. Amylase; mouth
    Explanation
    Amylase is an enzyme that breaks down carbohydrates into smaller molecules such as glucose. It is produced in the salivary glands and released into the mouth during the process of chewing. Once in the mouth, amylase begins the digestion of starches present in the cracker, breaking them down into simpler sugars. Therefore, the correct answer is amylase; mouth.

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  • 10. 

    If chief cells in the stomach were not working properly, what would likely happen?

    • Proteins would not be digested properly

    • There would be more hydrochloric acid

    • There would be less bile

    • Carbohydrates would not be digested properly

    Correct Answer
    A. Proteins would not be digested properly
    Explanation
    If chief cells in the stomach were not working properly, proteins would not be digested properly. Chief cells secrete pepsinogen, an inactive enzyme that is converted into pepsin, an active enzyme that breaks down proteins. Without the proper functioning of chief cells, pepsinogen would not be released and proteins would not be effectively broken down into smaller peptides and amino acids for absorption in the small intestine. This would lead to difficulties in protein digestion and nutrient absorption.

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  • Current Version
  • Feb 03, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Dec 25, 2018
    Quiz Created by
    Dhiraj Kumar
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