Digestion_Respiration_Quiz

Document Sample
Digestion_Respiration_Quiz Powered By Docstoc
					Name: __________________________________________ Date: ______________

                             Digestion/Respiration Quiz

   1. Digestion is the
         a. Chemical and mechanical breakdown of food
         b. Conversion of amino acids to proteins
         c. Conversion of glycogen to glucose
         d. Churning of food in the stomach and intestine
         e. Absorption of nutrients

   2. Which of the following choices lists the organs of the human digestive system in
      the correct order?
          a. Oral cavity, pharynx, esophagus, stomach, small intestine, large intestine
          b. Pharynx, oral cavity, esophagus, stomach, large intestine
          c. Esophagus, pharynx, stomach, small intestine, large intestine
          d. Esophagus, pharynx, stomach, large intestine, small intestine
          e. Oral cavity, esophagus, stomach, large intestine, small intestine

   3. What is the epiglottis?
        a. A muscle that moves the esophagus into line with the pharynx during
             swallowing
        b. A muscle sphincter that closes off the entry to the trachea during
             swallowing
        c. A muscle that moves the trachea out of line with the pharynx during
             swallowing
        d. A flap of skin that covers the entry to the trachea during breathing
        e. A flap of cartilage that flips down to cover the entry to the trachea during
             swallowing

   4. A bolus moves through the esophagus by
         a. Mastication
         b. Regurgitation
         c. Hydrolysis
         d. Peristalsis
         e. Segmentation

   5. The stomach mixes the food with the secretions of the stomach wall to form
         a. Acid gastrin
         b. Gastric juice
         c. Gastrin
         d. Acid chyme
         e. A parietal bolus
6. When the wall of the stomach fails to protect itself from digestion, the result is
     a. Reverse peristalsis
     b. Heartburn
     c. A duodenal ulcer
     d. Nausea
     e. A gastric ulcer

7. Most nutrient absorption occurs which part of the digestive system?
     a. Large intestine
     b. Liver
     c. Pancreas
     d. Small intestine
     e. Stomach

8. Bile from the liver is stored in the ________ before entering the intestine.
       a. Common bile duct
       b. Pancreas
       c. Intestinal wall
       d. Gallbladder
       e. Blood

9. Which of the following nutrients does NOT begin undergoing digestion until it
   reaches the small intestine?
       a. Starch
       b. Protein
       c. Fat
       d. Polypeptide
       e. Complex carbohydrate

10. The part of the animal where gas exchange occurs is called the
       a. Exchange network
       b. Respiratory surface
       c. Integumentary surface
       d. Capillary surface
       e. Capillary network

11. In the countercurrent exchange systems of fish gills
        a. The water flow over the gills reverses direction with every inhalation
        b. The blood and water flow in the same direction
        c. The blood flow in the gills reverses direction with every heart beat
        d. The blood and water flow in opposite directions
        e. The blood and water are kept separate, very far apart
12. Which of the following choices list the correct path of carbon dioxide moving out
    from the interior of the body?
       a. Alveoli, trachea, bronchioles, bronchi, pharynx, larynx
       b. Alveoli, bronchioles, bronchi, trachea, pharynx, larynx
       c. Alveoli, bronchioles, bronchi, trachea, larynx, pharynx
       d. Alveoli, bronchi, bronchioles, trachea, larynx, pharynx
       e. Alveoli, bronchi, bronchioles, trachea, pharynx, larynx

13. When you hold your breath, which of the following blood gas changes leads
    initially to the urge to breathe again?
         a. Falling oxygen concentration
         b. Rising oxygen concentration
         c. Falling carbon dioxide concentration
         d. Rising carbon dioxide concentration and falling oxygen concentration
         e. Rising carbon dioxide concentration

14. Oxygen is mostly transported through the body
       a. Bound to carbon
       b. Bound to dissolved iron
       c. Dissolved in red blood cells
       d. Bound to hemoglobin
       e. Dissolved in the blood

15. Cigarette smoking and secondhand smoke
       a. Increase the risk of cancer
       b. Reduce the lungs’ capacity to exchange gases
       c. Increase the risk of developing emphysema
       d. Increase the risk of heart disease
       e. All of the choices are correct

				
DOCUMENT INFO
Shared By:
Categories:
Stats:
views:27
posted:5/30/2011
language:English
pages:3