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 (D)</p> Signup and view all the answers

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

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

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

<p>Diarrhea (C)</p> Signup and view all the answers

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

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

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

<p>Diarrhea (A)</p> Signup and view all the answers

What can help prevent many digestive system disorders?

<p>A balanced diet and healthy lifestyle choices (D)</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 (B)</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 (C)</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 (A)</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 (A)</p> Signup and view all the answers

Where does the majority of digestion and nutrient absorption occur?

<p>Small intestine (B)</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 (A)</p> Signup and view all the answers

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

<p>Ingestion (C)</p> Signup and view all the answers

What is the function of saliva in the mouth?

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

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

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

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

<p>Regulating body temperature (D)</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 (A)</p> Signup and view all the answers

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

<p>Chyme (C)</p> Signup and view all the answers

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

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

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

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

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

<p>Rectum (A)</p> Signup and view all the answers

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

<p>Digestion (B)</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 (D)</p> Signup and view all the answers

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

<p>All of the above (D)</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 (B)</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 (B)</p> Signup and view all the answers

What is the main consequence of ulcers if left untreated?

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

What is the primary cause of diarrhea?

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

What is the common cause of liver cirrhosis?

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

What is the result of anorexia nervosa?

<p>Severe food restriction and starvation (C)</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 (D)</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 (B)</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 (A)</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 (A)</p> Signup and view all the answers

What is the result of liver cirrhosis?

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

What is the primary function of mechanical digestion?

<p>Mixing food with digestive enzymes (C)</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 (A)</p> Signup and view all the answers

What is the primary consequence of liver cirrhosis?

<p>Impaired liver function (A)</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 (D)</p> Signup and view all the answers

What is the primary cause of anorexia nervosa?

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

What is the primary function of the large intestine?

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

What is the main consequence of untreated ulcers?

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

What is the primary cause of ulcers?

<p>Bacterial infections (D)</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 (C)</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 (A)</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 (D)</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 (C)</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 (D)</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 (B)</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 (B)</p> Signup and view all the answers

What is the main component of the alimentary canal?

<p>The entire digestive system (A)</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 (C)</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 (D)</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 (B)</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 (C)</p> Signup and view all the answers

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