Gr 9 NATURAL SCIENCES: CH 1.2 The digestive system
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Questions and Answers

What is the process that involves both mechanical and chemical digestion?

  • Egestion
  • Absorption
  • Digestion (correct)
  • Ulcers

    • Where do absorbed nutrients go after being absorbed into the cells of the digestive tract?

  • Fat cells
  • Lymphatic system
  • Bloodstream (correct)
  • Muscle cells

    • What is the removal of undigested or unwanted particles from the body called?

  • Digestion
  • Ulcers
  • Egestion (correct)
  • Absorption

    • What are open sores that develop on the lining of the mouth, esophagus, stomach, or upper small intestine?

    <p>Ulcers</p> Signup and view all the answers

    What is an eating disorder characterized by an intense fear of gaining weight?

    <p>Anorexia Nervosa</p> Signup and view all the answers

    What is frequent, loose, watery stools caused by various diseases or conditions?

    <p>Diarrhea</p> Signup and view all the answers

    What is a disease that gradually replaces healthy liver tissue with scar tissue?

    <p>Liver Cirrhosis</p> Signup and view all the answers

    What is the result of undigested food passing too quickly through the large intestine?

    <p>Diarrhea</p> Signup and view all the answers

    What can help prevent many digestive system disorders?

    <p>A balanced diet and healthy lifestyle choices</p> Signup and view all the answers

    Why is it important to understand the structure and function of the digestive system?

    <p>To appreciate the vital role it plays in maintaining overall health and well-being</p> Signup and view all the answers

    What is the main purpose of the digestive system?

    <p>To break down food into small particles for absorption</p> Signup and view all the answers

    What is the function of the esophagus?

    <p>To move chewed food from the mouth to the stomach</p> Signup and view all the answers

    What is the role of the stomach in the digestive system?

    <p>To break down food into smaller particles using gastric juices and enzymes</p> Signup and view all the answers

    Where does the majority of digestion and nutrient absorption occur?

    <p>Small intestine</p> Signup and view all the answers

    What is the role of the large intestine in the digestive system?

    <p>To absorb water and salts from the remaining indigestible food matter</p> Signup and view all the answers

    What is the process of taking food into the body through the mouth?

    <p>Ingestion</p> Signup and view all the answers

    What is the function of saliva in the mouth?

    <p>To break down carbohydrates into simple sugars</p> Signup and view all the answers

    What is the role of the pancreas in the digestive system?

    <p>To produce enzymes for digestion</p> Signup and view all the answers

    What is the role of the rectum in the digestive system?

    <p>To store feces until they are expelled through the anus</p> Signup and view all the answers

    What is the term for the process of breaking down large food pieces into smaller particles that can be absorbed?

    <p>Digestion</p> Signup and view all the answers

    Which of the following is NOT a function of the digestive system?

    <p>Regulating body temperature</p> Signup and view all the answers

    What is the purpose of the muscular contractions in the esophagus?

    <p>To move food from the mouth to the stomach</p> Signup and view all the answers

    What is the term for the semi-liquid substance formed in the stomach?

    <p>Chyme</p> Signup and view all the answers

    Which organs aid in breaking down food into nutrients in the small intestine?

    <p>Pancreas and liver</p> Signup and view all the answers

    What is the role of beneficial bacteria in the large intestine?

    <p>Producing certain vitamins</p> Signup and view all the answers

    Which part of the digestive system stores feces until they are expelled?

    <p>Rectum</p> Signup and view all the answers

    What is the process of breaking down food into small particles that can be absorbed?

    <p>Digestion</p> Signup and view all the answers

    What is the function of the mouth in the digestive system?

    <p>Breaking down food into small particles</p> Signup and view all the answers

    What is the result of the digestive system's processes?

    <p>All of the above</p> Signup and view all the answers

    Which part of the digestive system is responsible for the majority of digestion and nutrient absorption?

    <p>Small intestine</p> Signup and view all the answers

    What is the primary function of the mechanical digestion process?

    <p>To mix food with digestive enzymes and acids</p> Signup and view all the answers

    What is the main consequence of ulcers if left untreated?

    <p>Complications and potentially serious health issues</p> Signup and view all the answers

    What is the primary cause of diarrhea?

    <p>Undigested food passing too quickly through the large intestine</p> Signup and view all the answers

    What is the common cause of liver cirrhosis?

    <p>Alcohol abuse, obesity, and diabetes</p> Signup and view all the answers

    What is the result of anorexia nervosa?

    <p>Severe food restriction and starvation</p> Signup and view all the answers

    What is the role of the digestive system in maintaining overall health and well-being?

    <p>To provide energy and nutrients to the body</p> Signup and view all the answers

    What is the consequence of undigested food passing too quickly through the large intestine?

    <p>Frequent, loose, watery stools</p> Signup and view all the answers

    What is the relationship between the digestive system and overall health?

    <p>The digestive system plays a vital role in maintaining overall health and well-being</p> Signup and view all the answers

    What is the importance of understanding the structure and function of the digestive system?

    <p>To prevent digestive system disorders</p> Signup and view all the answers

    What is the result of liver cirrhosis?

    <p>Gradual replacement of healthy liver tissue with scar tissue</p> Signup and view all the answers

    What is the primary function of mechanical digestion?

    <p>Mixing food with digestive enzymes</p> Signup and view all the answers

    What is the main difference between diarrhea and constipation?

    <p>Diarrhea involves frequent, loose stools, while constipation involves infrequent, hard stools</p> Signup and view all the answers

    What is the primary consequence of liver cirrhosis?

    <p>Impaired liver function</p> Signup and view all the answers

    What is the relationship between the digestive system and overall health?

    <p>The digestive system plays a vital role in maintaining overall health and well-being</p> Signup and view all the answers

    What is the primary cause of anorexia nervosa?

    <p>Socio-cultural pressure to be thin</p> Signup and view all the answers

    What is the primary function of the large intestine?

    <p>Water absorption and electrolyte regulation</p> Signup and view all the answers

    What is the main consequence of untreated ulcers?

    <p>Complications and potentially life-threatening conditions</p> Signup and view all the answers

    What is the primary cause of ulcers?

    <p>Bacterial infections</p> Signup and view all the answers

    What is the relationship between the digestive system and nutrition?

    <p>The digestive system breaks down food into nutrients, which are then absorbed and utilized by the body</p> Signup and view all the answers

    What is the primary consequence of anorexia nervosa?

    <p>Serious health issues, including bone thinning and heart problems</p> Signup and view all the answers

    What is the primary function of the digestive system?

    <p>To break down food into small particles that can be absorbed</p> Signup and view all the answers

    What is the role of the esophagus in the digestive system?

    <p>To move chewed food from the mouth to the stomach through peristaltic contractions</p> Signup and view all the answers

    What is the function of the pancreas in the digestive system?

    <p>To produce enzymes to aid in protein digestion</p> Signup and view all the answers

    What is the result of the digestive system's processes?

    <p>The absorption of nutrients into the bloodstream</p> Signup and view all the answers

    What is the role of beneficial bacteria in the large intestine?

    <p>To produce certain vitamins like Vitamin K and some B vitamins</p> Signup and view all the answers

    What is the main component of the alimentary canal?

    <p>The entire digestive system</p> Signup and view all the answers

    What is the term for the process of breaking down large food pieces into smaller particles that can be absorbed?

    <p>Digestion</p> Signup and view all the answers

    What is the function of the stomach in the digestive system?

    <p>To further digest food using gastric juices and enzymes</p> Signup and view all the answers

    What is the role of the large intestine in the digestive system?

    <p>To absorb water and salts from the remaining indigestible food matter</p> Signup and view all the answers

    What is the term for the process of taking food into the body through the mouth?

    <p>Ingestion</p> Signup and view all the answers

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