Digestive system grade 8

Which organ produces bile to aid in digestion?
Liver
Stomach
Pancreas
Gallbladder
Where does the process of digestion begin?
Mouth
Stomach
Small intestine
Esophagus
Which enzyme is responsible for breaking down carbohydrates?
Amylase
Lipase
Protease
Pepsin
Which part of the digestive system absorbs most of the nutrients from digested food?
Small intestine
Large intestine
Stomach
Esophagus
What is the role of the stomach in the digestive system?
Mixing and storing food
Breaking down proteins
Absorbing water
Producing bile
Which organ produces insulin to regulate blood sugar levels?
Pancreas
Liver
Gallbladder
Kidney
What is the function of the gallbladder in the digestive system?
Stores bile
Produces saliva
Filters waste products
Absorbs nutrients
How long does it take for food to pass through the entire digestive system?
24-48 hours
12-18 hours
4-6 hours
1-2 hours
What is the name of the muscular tube that connects the mouth to the stomach?
Esophagus
Trachea
Bronchus
Ureter
Which of the following is NOT an accessory organ of the digestive system?
Stomach
Liver
Pancreas
Gallbladder
Which of the following is a function of saliva in the digestive system?
Moistening food
Breaking down carbohydrates
Killing bacteria
Absorbing nutrients
Which of the following is NOT a part of the small intestine?
Duodenum
Jejunum
Ileum
Colon
What is the purpose of mucus in the digestive system?
Protecting the lining of the stomach
Lubricating food for easier passage
Neutralizing stomach acid
Producing bile
Which of the following is an example of mechanical digestion?
Chewing food
Breaking down proteins
Absorbing nutrients
Producing enzymes
What is the role of the large intestine in the digestive system?
Absorbing water and electrolytes
Breaking down fats
Producing insulin
Storing bile
What is the name of the ring-like muscle that controls the flow of food between the esophagus and stomach?
Lower esophageal sphincter
Pyloric sphincter
Ileocecal valve
Anal sphincter
What is the purpose of enzymes in the digestive system?
Breaking down large molecules into smaller ones
Absorbing nutrients
Regulating body temperature
Producing hormones
Which of the following is NOT a function of the liver in the digestive system?
Producing bile
Detoxifying harmful substances
Storing vitamins
Filtering blood
What is the name of the process by which nutrients are transported from the small intestine to the bloodstream?
Absorption
Digestion
Secretion
Elimination
What is the correct order of the parts of the digestive system through which food passes?
Mouth, Esophagus, Stomach, Small Intestine, Large Intestine, Rectum, Anus
Which of the following is a function of the stomach in the digestive system?
Mixing food with gastric juices
Breaking down proteins
Absorbing nutrients
Producing bile
What is the name of the enzyme found in saliva that helps break down starches into sugars?
Amylase
Lipase
Protease
Pepsin
How does the small intestine increase its surface area for absorption?
Through finger-like projections called villi and microvilli
By secreting mucus
By producing enzymes
By contracting muscles
What is the purpose of hydrochloric acid in the stomach?
Activating enzymes
Killing bacteria
Neutralizing stomach acid
Breaking down fats
Which of the following is NOT a component of gastric juice produced by the stomach?
Hydrochloric acid
Mucus
Bile
Pepsinogen
What is the function of the appendix in the digestive system?
Unknown
Producing enzymes
Storing bile
Filtering blood
Which of the following is NOT a common digestive disorder?
Gastritis
Appendicitis
Diabetes
Ulcerative colitis
What is the purpose of peristalsis in the digestive system?
Propelling food through the digestive tract
Breaking down proteins
Absorbing nutrients
Regulating body temperature
How does the pancreas contribute to digestion?
By producing enzymes and releasing them into the small intestine
By storing bile
By absorbing water
By regulating blood sugar levels
What is the name of the valve that separates the small intestine from the large intestine?
Ileocecal valve
Pyloric sphincter
Lower esophageal sphincter
Anal sphincter
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