$CATEGORY: Science - Khan Academy/6.Life Processes/6.Life Processes--Transportation

//Multiple Choice

Where does the process of digestion start? {
    ~Stomach
    =Mouth
    ~Small intestine
    ~Esophagus
}

Which of the following enzyme is secreted by the salivary gland? {
    ~Pepsin
    =Amylase
    ~Lipase
    ~Trypsin
}

Which of the following is/are secreted in the stomach? {
    ~HCL
    ~Pepsin
    ~Lipase
    =All of the above
}

The sphincter is located at the junction between the stomach's lower part and the small intestine's first part is\: {
    ~Cardiac
    =Pyloric
    ~Esophageal
    ~Ileocecal
}

Which of the following secretes trypsin and chymotrypsin? {
    ~Liver
    ~Stomach
    ~Small intestine
    =Pancreas
}

Which of the following correctly lists the parts of the small intestine in ascending order? {
    ~Ileum → Jejunum → Duodenum
    =Duodenum → Jejunum → Ileum
    ~Jejunum → Ileum → Duodenum
    ~None of the above
}

The process of digestion is completed in the\: {
    ~Stomach
    ~Large intestine
    ~Mouth
    =Small intestine
}

The feces are expelled from the body through the\: {
    ~Rectum
    =Anus
    ~Large intestine
    ~Colon
}

Which of the following forms the brush border? {
    =Microvilli
    ~Cilia
    ~Flagella
    ~Villi
}

Which cell is responsible for the formation of microvilli? {
    ~Goblet cells
    =Enterocytes
    ~Paneth cells
    ~Kupffer cells
}

//True or False

The food eaten by us is broken down into the macronutrients. {T}

Saliva contains only salivary amylase. {F}

Pepsin is a proteolytic enzyme that is secreted in the mouth. {F}

Bile plays an important role in the emulsification of fats. {T}

The fat-digesting enzyme lipase is secreted in the small intestine only. {F}

The large intestine is the body's storage and dry unit. {T}

The villi increase the surface area for the absorption of nutrients in food. {T}


//Match the following

Match the following items from Column A with their correct corresponding options from Column B\:
{
=Stomach -> Dilated part of the alimentary canal responsible for churning food.
=Villi -> Finger-like projections that increase surface area for absorption.
=Liver -> The organ that produces bile.
=Bile -> A secretion that helps emulsify fats.
=Chyme -> A partially digested food mixture leaving the stomach.
}


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