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Seventh Grade (Grade 7) Respiration, Digestion, and Excretion Questions

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Grade 7 Respiration, Digestion, and Excretion
What do the kidneys do?
  1. produce bile to aid in the digestion of lipids
  2. produce insulin to help break down sugar
  3. filter the blood to remove waste through the urinary system
  4. produce white blood cells
Grade 7 Respiration, Digestion, and Excretion
The function of the                 system is to take in food, digest food, and remove undigested food.
  1. circulatory
  2. digestive
  3. muscular
  4. immune
Grade 7 Respiration, Digestion, and Excretion
What letters identify the two bronchi?
Respiratory System
  1. F and K
  2. A and B
  3. E and I
  4. D and F
Grade 7 Respiration, Digestion, and Excretion
Which organ is included in the digestive system?
  1. lung
  2. heart
  3. stomach
  4. brain
Grade 7 Respiration, Digestion, and Excretion
The system that removes waste and filters blood is the                 system.
  1. digestive
  2. endocrine
  3. excretory
  4. reproductive
Grade 7 Respiration, Digestion, and Excretion
The                 system breaks down food into nutrients and absorbs the nutrients.
  1. digestive
  2. muscular
  3. endocrine
  4. nervous
Grade 7 Respiration, Digestion, and Excretion
Mechanical digestion does NOT include
  1. stomach acid.
  2. swallowing.
  3. stomach muscles.
  4. chewing.
Grade 7 Respiration, Digestion, and Excretion
The liver is part of which body system?
  1. circulatory
  2. digestive
  3. epithelial
  4. muscular
Grade 7 Respiration, Digestion, and Excretion
The teeth are important because they                             .
  1. perform chemical breakdown
  2. perform mechanical breakdown
  3. absorb nutrients
  4. get rid of waste
Grade 7 Respiration, Digestion, and Excretion
What major organ is associated with the respiratory system?
  1. heart
  2. lungs
  3. brain
  4. liver
Grade 7 Respiration, Digestion, and Excretion
Food in the stomach is changed into a thin, watery liquid called
  1. paste.
  2. vomit.
  3. digestion.
  4. chyme.
Grade 7 Respiration, Digestion, and Excretion
The epiglottis is a flap that
  1. prevents your lungs from taking in too much air.
  2. prevents water from coming out of your nose while drinking.
  3. prevents food and drink from going down your trachea.
  4. connects the small and large intestines.
Grade 7 Respiration, Digestion, and Excretion
What happens when your diaphragm relaxes and moves upward?
  1. Your lungs deflate, and you breathe out.
  2. Your lungs inflate, and you breathe in.
  3. Your alveoli transfers oxygen into your bloodstream.
  4. Your bronchioles enlarge.
Grade 7 Respiration, Digestion, and Excretion
Mechanical digestion begins in the
  1. esophagus.
  2. pharynx.
  3. mouth.
  4. stomach.
Grade 7 Respiration, Digestion, and Excretion
The system that breaks down food mechanically is the                 system.
  1. urinary
  2. reproductive
  3. digestive
  4. endocrine
Grade 7 Respiration, Digestion, and Excretion
Substances in food that the body needs to function properly are
  1. nutrients.
  2. nutrition.
  3. proteins.
  4. vitamins.
Grade 7 Respiration, Digestion, and Excretion
Which organ is not found in the urinary system?
  1. kidney
  2. urethra
  3. rectum
  4. bladder
Grade 7 Respiration, Digestion, and Excretion
What letter identifies the diaphragm?
Respiratory System
  1. D
  2. J
  3. F
  4. A
  5. G
Grade 7 Respiration, Digestion, and Excretion
What non-infectious disease causes a narrowing of the breathing passages, making it difficult to breathe?
  1. asthma
  2. AIDS
  3. diabetes
  4. antihistamine
Grade 7 Respiration, Digestion, and Excretion
What letter identifies the trachea?
Respiratory System
  1. K
  2. E
  3. A
  4. H
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