Podcast
Questions and Answers
Which nutrient is primarily responsible for providing energy and also plays a role in body insulation?
Which nutrient is primarily responsible for providing energy and also plays a role in body insulation?
- Fats (correct)
- Fiber
- Carbohydrates
- Vitamins
What is the correct order of the five stages of nutrition?
What is the correct order of the five stages of nutrition?
- Ingestion, Absorption, Digestion, Egestion, Assimilation
- Assimilation, Ingestion, Digestion, Absorption, Egestion
- Ingestion, Digestion, Absorption, Assimilation, Egestion (correct)
- Egestion, Assimilation, Absorption, Digestion, Ingestion
What role do enzymes play in the digestive system?
What role do enzymes play in the digestive system?
- They physically break down food into smaller pieces.
- They provide energy when food is processed.
- They speed up chemical reactions without being altered. (correct)
- They transport nutrients into the bloodstream.
Which statement accurately describes fiber's function in the digestive system?
Which statement accurately describes fiber's function in the digestive system?
Which organ is primarily responsible for the absorption of simple food molecules into the bloodstream?
Which organ is primarily responsible for the absorption of simple food molecules into the bloodstream?
Flashcards
Components of Food
Components of Food
Food consists of carbohydrates, proteins, fats, vitamins, minerals, and water.
Role of Proteins
Role of Proteins
Proteins are essential for growth and repair as they provide building blocks for the body.
Peristalsis
Peristalsis
Peristalsis is the wave-like muscular contractions that move food through the digestive system.
Stages of Nutrition
Stages of Nutrition
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Chemical Digestion
Chemical Digestion
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Study Notes
Food Composition
- Food is made up of carbohydrates, proteins, fats, vitamins, minerals, and water.
- Carbohydrates and fats provide energy, while fats also insulate the body.
- Fiber prevents constipation.
- Proteins build and repair the body.
- Vitamins and minerals are needed in small amounts for a healthy body.
Digestive System
- The digestive system is a group of organs that break down food to absorbable molecules.
- Peristalsis is the wave-like muscular action that pushes food through the system.
- Mechanical digestion breaks down food into small pieces in the mouth and stomach.
- Chemical digestion uses enzymes to break down food in the mouth, stomach, and small intestine.
- Enzymes speed up chemical reactions without being changed themselves.
- Absorption occurs when simple food molecules are taken into the bloodstream from the small intestine.
- The large intestine absorbs water, and waste is eliminated through the anus in a process called egestion.
Gut Microbiome
- The gut microbiome is the collection of microorganisms in the large intestine.
- A healthy microbiome benefits overall health.
Stages of Nutrition
- The five stages of nutrition are ingestion, digestion, absorption, assimilation, and egestion.
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