Digestive System Quiz

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Questions and Answers

What is the primary product of amylase action on starch?

  • Maltose (correct)
  • Maltodextrin
  • Glucose
  • Fructose

Which type of teeth is primarily responsible for cutting food?

  • Incisors (correct)
  • Premolars
  • Canines
  • Molars

What role does hydrochloric acid play in the stomach?

  • Facilitates gas exchange
  • Aids in chemical digestion and kills germs (correct)
  • Provides energy to cells
  • Absorbs nutrients

What structure in the small intestine increases surface area for nutrient absorption?

<p>Villi (D)</p> Signup and view all the answers

Which function is NOT performed by the stomach?

<p>Production of saliva (B)</p> Signup and view all the answers

What is the primary function of enzymes like amylase in digestion?

<p>To break down food into smaller components (D)</p> Signup and view all the answers

Which stage of nutrition involves the actual uptake of nutrients by cells?

<p>Absorption (A)</p> Signup and view all the answers

During which stage of digestion does the body distribute nutrients for growth and repair?

<p>Assimilation (D)</p> Signup and view all the answers

What is the role of the liver in the digestive process?

<p>To produce bile (D)</p> Signup and view all the answers

Which part of the digestive system is primarily responsible for the absorption of water and salts?

<p>Large Intestine (D)</p> Signup and view all the answers

Flashcards

Amylase's Function

Amylase breaks down starch into maltose, a simpler sugar.

Teeth Types

Incisors cut, canines tear, premolars grind, and molars chew food.

Stomach Protection

The stomach has a mucus layer to protect it from its own acid.

Small Intestine Absorption

The small intestine's villi increase surface area to absorb nutrients.

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Stomach Digestion

Stomach acid and enzymes break down food for the small intestine.

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What does digestion do?

Digestion breaks down food into nutrients that our body can use.

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What are enzymes?

Enzymes are special proteins that speed up chemical reactions in our body.

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Ingestion

Taking food into the mouth.

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Absorption

Nutrients from digested food entering the bloodstream.

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Egestion

Removing undigested waste from the body.

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Study Notes

Digestive System

  • Saliva is produced in salivary glands
  • Amylase breaks down starch into sugars (maltose)
  • 32 teeth in an adult mouth:
    • Incisors: sharp, cut food
    • Canines: pointed, tear food
    • Premolars: flat, grind food
    • Molars: grind & chew food
  • Stomach:
    • Lined with mucus to prevent acid damage
    • Contains hydrochloric acid and protein-digesting enzymes
    • Churns food (physical digestion)
    • Acid helps digestion
  • Small Intestine:
    • Contains villi (tiny finger-like structures)
    • Large surface area for absorption
    • Aids absorption of nutrients

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