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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
How does glucose enter the cell through the blood?
  1. It goes through the cell membrane through simple diffusion
  2. It gets turned into CO2 and then goes in through simple diffusion
  3. It goes in through active transport
  4. It goes in through facilitated diffusion
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
Grade 9 Respiration, Digestion, and Excretion
This organ stores bile.
  1. pancreas
  2. liver
  3. gall bladder
  4. spleen
Grade 9 Respiration, Digestion, and Excretion
Grade 9 Respiration, Digestion, and Excretion
Grade 9 Respiration, Digestion, and Excretion
Grade 9 Respiration, Digestion, and Excretion
This is the last section of the colon. It is responsible for elimination.
  1. jejunum
  2. descending colon
  3. ascending colon
  4. rectum
Grade 9 Respiration, Digestion, and Excretion
What is the function of chewing?
  1. to exercise jaw muscles
  2. to make food taste better
  3. to increase the food's surface area for digestive enzymes
  4. to improve the ability of food to pass through the intestines
Grade 9 Respiration, Digestion, and Excretion
Grade 9 Respiration, Digestion, and Excretion
Grade 9 Respiration, Digestion, and Excretion
The main function of this organ is to reabsorb water.
  1. pancreas
  2. small instestine
  3. large intestine
  4. spleen
Grade 9 Respiration, Digestion, and Excretion
What does the respiratory system help to do?
  1. Helps digest food
  2. Helps stop bleeding
  3. Helps you fight off lung cancer
  4. Helps oxygen get into body/blood
Grade 9 Respiration, Digestion, and Excretion
Grade 9 Respiration, Digestion, and Excretion
Grade 9 Respiration, Digestion, and Excretion
Why doesn't the hydrochloric acid in the stomach dissolve the stomach wall?
  1. The acid is not in the stomach.
  2. The mucus layer protects it.
  3. The acid isn't strong enough to harm it.
  4. All of the above.
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