Podcast
Questions and Answers
Which process is responsible for physically moving food through the digestive tract after it has been swallowed?
Which process is responsible for physically moving food through the digestive tract after it has been swallowed?
- Absorption
- Ingestion
- Peristalsis (correct)
- Secretion
During the digestion process, what is the primary role of digestive juices secreted by various glands?
During the digestion process, what is the primary role of digestive juices secreted by various glands?
- To solidify food for easier transport.
- To extract vitamins from food.
- To lubricate, soften, and liquefy foods, and to chemically simplify complex food materials. (correct)
- To neutralize toxins present in the ingested food.
What is the primary purpose of digestion?
What is the primary purpose of digestion?
- To transport food directly to cells.
- To eliminate waste products from the body.
- To break down food into smaller molecules that the body can absorb and utilize. (correct)
- To protect the body from harmful bacteria found in food.
What is the term for the process of taking food into the mouth?
What is the term for the process of taking food into the mouth?
Which of the following best describes the role of enzymes in the digestive system?
Which of the following best describes the role of enzymes in the digestive system?
What is the function of bile and bicarbonate ions secreted by certain glands during digestion?
What is the function of bile and bicarbonate ions secreted by certain glands during digestion?
After chewing a soda cracker for a few minutes, which process begins as you swallow it?
After chewing a soda cracker for a few minutes, which process begins as you swallow it?
Which digestive process directly contributes to extracting nutrients for energy and growth.
Which digestive process directly contributes to extracting nutrients for energy and growth.
If the secretion of digestive glands is impaired, which of the following processes would be most directly affected?
If the secretion of digestive glands is impaired, which of the following processes would be most directly affected?
What is a direct consequence of the digestion process?
What is a direct consequence of the digestion process?
Flashcards
Digestion
Digestion
The process where food is broken down into smaller molecules for absorption and utilization by the body.
Ingestion
Ingestion
The act of eating, involving putting food into your mouth.
Transport of Food
Transport of Food
The movement of food through the digestive tract via wavelike muscle contractions.
Secretion of Materials
Secretion of Materials
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Mechanical vs. Chemical Digestion
Mechanical vs. Chemical Digestion
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Study Notes
- Digestion breaks down food into smaller molecules for body cells to absorb and use
- Digestion importance: extracts nutrients from food, keeps the body healthy, and enables various activities
- The digestive system is responsible for extracting nutrients
Processes Involved in Digestion:
- Ingestion: the process of eating, placing food into the mouth
- Transport of Food: starts when food is swallowed
- Wavelike contractions (peristalsis) in the muscular walls of the digestive organs move chewed food through the digestive tract
Secretion of Materials
- Digestive glands secrete digestive juices (saliva, gastric juice, etc)
- These secretions lubricate, soften, and liquefy foods
- Digestive juices contain enzymes that simplify complex food materials
- Other glands secrete substances like bile and bicarbonate ions
- Substances adjust the pH (acidity or alkalinity) of the food being digested
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