5 Questions
What is the main function of the mouth in the digestive system?
To mix food with saliva that contains enzymes to break down carbohydrates
Which part of the digestive system is responsible for the majority of nutrient absorption?
Small intestine
What is the role of the pancreas in the digestive system?
To produce enzymes to break down proteins, carbohydrates, and fats
What is the role of bile in the digestive system?
To emulsify fats, making them easier to digest
What is the function of the large intestine?
To store and concentrate waste
Study Notes
Components of the Digestive System
- Mouth: consists of teeth, tongue, and salivary glands
- Esophagus: muscular tube that carries food to the stomach
- Stomach: muscular sac that secretes digestive enzymes and acids
- Small intestine: long, thin tube where most nutrient absorption occurs
- Liver: produces bile to break down fats
- Pancreas: produces digestive enzymes
- Gallbladder: stores bile from the liver
- Large intestine (colon): absorbs water and electrolytes
- Rectum: stores feces until eliminated through the anus
Processes of the Digestive System
- Ingestion: taking food into the mouth
- Mechanical digestion: breaking down food into smaller pieces (chewing, grinding)
- Chemical digestion: breaking down food into smaller molecules (enzymes, acids)
- Absorption: nutrients absorbed into bloodstream through intestinal walls
- Elimination: waste products eliminated from the body through the anus
This quiz covers the components and processes of the digestive system, suitable for 10th grade biology students. Test your knowledge of the human body's digestive system!
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