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Eighth Grade (Grade 8) Respiration, Digestion, and Excretion Questions

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Grade 8 Respiration, Digestion, and Excretion
Grade 8 Respiration, Digestion, and Excretion
Which list shows the path of oxygen entering the body?
  1. nose - bronchi - lungs - trachea
  2. trachea - nose - bronchi - lungs
  3. nose - trachea - bronchi - lungs
  4. trachea - nose - lungs - bronchi
Grade 8 Respiration, Digestion, and Excretion
Grade 8 Respiration, Digestion, and Excretion
Carbohydrate digestion starts in the
  1. small intestine
  2. esophagus
  3. stomach
  4. mouth
Grade 8 Respiration, Digestion, and Excretion
What is the main job of the large intestine?
  1. To get rid of all the fats in your body.
  2. To help control the sugar levels in your body.
  3. To break down the food into chyme.
  4. To form the food waste into feces.
Grade 8 Respiration, Digestion, and Excretion
Grade 8 Respiration, Digestion, and Excretion
After air is inhaled where does the exchange of oxygen take place?
  1. in the lungs from the alveoli to the capillaries
  2. in the blood from the alveoli to the blood vessels
  3. in the lungs from the bronchi to the trachea
  4. in the blood from the white blood cells to red blood cells
Grade 8 Respiration, Digestion, and Excretion
Mark 2 things that happen in your stomach.
  1. Acid helps kill bacteria and break down the food.
  2. Your food goes right into your bloodstream.
  3. The muscles start churning the food around.
  4. Food stays there until it spoils.
  5. Oxygen is produced inside.
Grade 8 Respiration, Digestion, and Excretion
Where are the bronchioles located?
  1. in the throat.
  2. in the trachea.
  3. at the end of the bronchial tubes.
  4. below the diaphragm.
Grade 8 Respiration, Digestion, and Excretion
What is the function of the liver? Select all that apply.
  1. Makes mucus.
  2. Stores glucose (sugars).
  3. Makes bile for digestion.
  4. Removes chemicals that could harm you.
  5. Produces more oxygen.
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