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Ninth Grade (Grade 9) Respiration, Digestion, and Excretion Questions

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Grade 9 Respiration, Digestion, and Excretion
Grade 9 Respiration, Digestion, and Excretion
Grade 9 Respiration, Digestion, and Excretion
Grade 9 Respiration, Digestion, and Excretion
Grade 9 Respiration, Digestion, and Excretion
Grade 9 Respiration, Digestion, and Excretion
What is a function of the small intestines?
  1. Veins in your lung. When you swallow, food or drink travels down through the stomach into your intestines.
  2. Controls the muscles
  3. Makes you walk
  4. take and absorb the nutrients that your body needs from your food and put it in your bloodstream so your body can use it.
Grade 9 Respiration, Digestion, and Excretion
The stomach:
  1. is a large, muscular sac.
  2. is opened and closed by a muscular ring.
  3. is located at the bottom of the esophagus.
  4. digests and absorbs food in the body.
  5. both a) and c) are correct.
  6. all of the above are correct.
Grade 9 Respiration, Digestion, and Excretion
Grade 9 Respiration, Digestion, and Excretion
The large intestine:
  1. absorbs and eliminates blood.
  2. is located between the small intestine and the anus.
  3. is a long narrow tube about 4-5 meters long.
  4. both a) and b) are correct.
Grade 9 Respiration, Digestion, and Excretion
Which structure is found between the esophagus and the stomach?
  1. The sphincter
  2. The larynx
  3. The gall bladder
  4. The GI tract
Grade 9 Respiration, Digestion, and Excretion
What is the function of the anus?
  1. To get rid of all the fats in your body.
  2. To help control the sugar levels on your body.
  3. To absorb water and eliminate waste.
  4. To release solid waste (feces) from the body.
Grade 9 Respiration, Digestion, and Excretion
Amylase helps to break down
  1. stomach acid
  2. enamel
  3. starch found in bread, beans, and rice
  4. none of the above
Grade 9 Respiration, Digestion, and Excretion
The function of the larynx is to
  1. allow food to enter.
  2. exchange oxygen for carbon dioxide.
  3. warm and moisten air before entering the lungs.
  4. produce sound.
Grade 9 Respiration, Digestion, and Excretion
A cell is said to be fully turgid when it cannot absorb any more water or when turgor pressure is maximum. The best simile of turgor pressure would be
  1. an in ground swimming pool
  2. when your stomach is mixing up digested food
  3. when your bladder is full and cannot hold anymore urine
  4. when one of your kidneys stop working properly
Grade 9 Respiration, Digestion, and Excretion
What triggers the production of saliva?
  1. the glands in the mouth.
  2. the taste buds on the tongue.
  3. the smell or thought of food.
  4. chewing on food.
Grade 9 Respiration, Digestion, and Excretion
Enzymes in the saliva begins the digestion of
  1. starch.
  2. protein.
  3. fat.
  4. acids.
Grade 9 Respiration, Digestion, and Excretion
Grade 9 Respiration, Digestion, and Excretion
What are the special cells in the kidneys called?
  1. neurons
  2. villi
  3. nephrons
  4. white blood cells
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