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

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Grade 7 Respiration, Digestion, and Excretion
The                 system is the MOST responsible for removing waste from the body.
  1. excretory
  2. circulatory
  3. nervous
  4. muscular
Grade 7 Respiration, Digestion, and Excretion
What part of the respiratory system is identified by letter G?
Respiratory System
  1. pharynx
  2. larynx
  3. trachea
  4. alveoli
Grade 7 Respiration, Digestion, and Excretion
Mechanical and chemical digestion both begin in the
  1. esophagus.
  2. stomach.
  3. mouth.
  4. small intestine.
Grade 7 Respiration, Digestion, and Excretion
Which describes alveoli?
  1. glands that produce bile
  2. tiny sacs inside the lungs helpful in breathing
  3. bacteria helpful in digestion
  4. bones located in the foot
Grade 7 Respiration, Digestion, and Excretion
Exhalation is a term for the action of
  1. breathing out.
  2. breathing in.
  3. cellular respiration.
  4. digestion.
Grade 7 Respiration, Digestion, and Excretion
The voice box is another name for the
  1. bronchi.
  2. pharynx.
  3. larynx.
  4. tongue.
Grade 7 Respiration, Digestion, and Excretion
What is bile?
  1. flap of tissue that seals the windpipe
  2. muscular tube that connects the stomach and mouth
  3. substance that breaks down fat particles
  4. thick slippery substance
  5. triangular organ that lies between the stomach
  6. upper part of the abdomen
  7. protein that speeds up chemical reactions in the body
  8. J-shaped organ located in the abdomen
Grade 7 Respiration, Digestion, and Excretion
Chemical digestion begins with the addition of a watery substance called
  1. mucus.
  2. stomach acid.
  3. enzymes.
  4. saliva.
Grade 7 Respiration, Digestion, and Excretion
What is the correct order of the structures of the respiratory system as air passes through?
  1. external nostril, nasal passage, pharynx, glottis, larynx, trachea, bronchi, bronchioles, alveoli or air sacs
  2. pharynx, alveoli or air sacs, external nostril, nasal passage, glottis, bronchioles, bronchi
  3. heart, lungs, brain, kidney, muscle, eyes, toes
Grade 7 Respiration, Digestion, and Excretion
The urinary system rids the blood of                 produced by the cells.
  1. waste
  2. nutrients
  3. vitamins
  4. oxygen
Grade 7 Respiration, Digestion, and Excretion
This                 system removes liquid and soluble waste from the body.
  1. digestive
  2. urinary
  3. endocrine
  4. reproductive
Grade 7 Respiration, Digestion, and Excretion
Nutrients move into blood vessels within the                .
  1. esophagus
  2. villi
  3. large intestine
  4. epiglottis
Grade 7 Respiration, Digestion, and Excretion
In the digestive system, the rectum is responsible for                     . (Select the two that apply.)
  1. storing waste
  2. absorbing nutrients
  3. getting rid of waste
  4. chemical breakdown
Grade 7 Respiration, Digestion, and Excretion
What is the most important organ in the digestive system?
  1. esophagus
  2. liver
  3. rectum
  4. They are all important.
Grade 7 Respiration, Digestion, and Excretion
The breaking down of large food molecules into small molecules is
  1. peristalsis.
  2. emulsification.
  3. chemical digestion.
  4. absorption.
Grade 7 Respiration, Digestion, and Excretion
Where does the transfer of oxygen into the bloodstream take place?
  1. nasal passage
  2. trachea
  3. alveoli sacs
  4. bronchioles
Grade 7 Respiration, Digestion, and Excretion
The process by which foods are changed into forms the body can use is
  1. nutrients.
  2. digestion.
  3. emulsification.
  4. malnutrition.
Grade 7 Respiration, Digestion, and Excretion
The large intestine is also called the
  1. colon.
  2. esophagus.
  3. saliva.
  4. liver.
Grade 7 Respiration, Digestion, and Excretion
Air passes from the nose to the trachea through the
  1. bronchi.
  2. lungs.
  3. pharynx.
  4. larynx.
Grade 7 Respiration, Digestion, and Excretion
What very important job do the kidneys have?
  1. filter waste out of the blood
  2. secrete hormones
  3. remove solid waste
  4. all of the above
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