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Sixth Grade (Grade 6) Respiration, Digestion, and Excretion Questions

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Grade 6 Respiration, Digestion, and Excretion
How many hours does it take food to pass through the stomach and small intestines?
  1. 1-2
  2. 2-4
  3. 4-6
  4. 6-8
Grade 6 Respiration, Digestion, and Excretion
What organ removes waste from blood?
  1. heart
  2. lungs
  3. eyes
  4. kidneys
Grade 6 Respiration, Digestion, and Excretion
What is the thick liquid food that is slowly released into the small intestine?
  1. sludge
  2. chyme
  3. goop
  4. amylase
Grade 6 Respiration, Digestion, and Excretion
What is the enzyme in saliva that helps to break down starches?
  1. amylase
  2. lipase
  3. cellulase
  4. lactase
Grade 6 Respiration, Digestion, and Excretion
How long does it take for your entire blood volume to flow through the kidneys?
  1. five minutes
  2. ten minutes
  3. twenty minutes
Grade 6 Respiration, Digestion, and Excretion
The muscle that aids in breathing is the diaphragm.
  1. True
  2. False
Grade 6 Respiration, Digestion, and Excretion
The breathing process is controlled by the actions of muscles in your
  1. ribs and chest.
  2. heart.
  3. stomach.
  4. brain.
Grade 6 Respiration, Digestion, and Excretion
Urine is made of
  1. water and nutrients.
  2. water and lemonade.
  3. everything you drank that day.
  4. water and waste products.
Grade 6 Respiration, Digestion, and Excretion
The liver takes ammonia and uses carbon dioxide to change it into a substance called
  1. cecum.
  2. bile.
  3. urea.
  4. juice.
Grade 6 Respiration, Digestion, and Excretion
Which class of carbohydrates has the lowest glycemic index?
  1. simple carbohydrates
  2. complex carbohydrates
Grade 6 Respiration, Digestion, and Excretion
Which vitamin is made by the body with help from the bacteria in the intestines?
  1. vitamin A
  2. vitamin B
  3. vitamin C
  4. vitamin D
  5. vitamin K
Grade 6 Respiration, Digestion, and Excretion
In what direction does the diaphragm move when we exhale?
  1. downward
  2. upward
  3. around
  4. diagonally
Grade 6 Respiration, Digestion, and Excretion
Which term describes gastric juices?
  1. lemonade
  2. pancreatic fluid
  3. acid
  4. none of the above
Grade 6 Respiration, Digestion, and Excretion
About how long does it take for the small intestine to process food?
  1. 2 hours
  2. 3 hours
  3. 1 hour
Grade 6 Respiration, Digestion, and Excretion
Beetles use hose-like structures called                 to transport oxygen throughout the body.
  1. book lungs
  2. gills
  3. tracheal tubes
  4. lungs
Grade 6 Respiration, Digestion, and Excretion
During inhalation, the rib cage                                                            and the diaphragm                                                           .
  1. returns to its original position; contracts and flattens
  2. returns to its original position; relaxes and moves upward
  3. moves up and out; contracts and flattens
  4. moves up and out; relaxes and moves upward
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