Metabolic Reactions

Front

What are metabolic reactions?

Back

Metabolic reactions are the chemical processes that occur within a living organism to maintain life, including breaking down food for energy and building up cellular components.

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NGSS.MS-LS1-3

NGSS.MS-LS2-3

Front

What is glucose?

Back

Glucose is a simple sugar and the smallest food molecule that serves as a primary energy source for cells.

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NGSS.MS-LS1-6

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Front

What role do villi play in the digestive system?

Back

Villi are finger-like structures in the small intestine that increase the surface area for absorption of nutrients into the bloodstream.

Front

What is the function of the small intestine?

Back

The small intestine is where 90% of nutrient absorption occurs after food is digested.

Front

What is fiber?

Back

Fiber is a type of carbohydrate that the body cannot digest, and it helps regulate the body's use of sugars.

Front

What is the difference between simple and complex carbohydrates?

Back

Simple carbohydrates are made of one or two sugar molecules (like glucose), while complex carbohydrates consist of longer chains of sugar molecules (like starch).

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NGSS.MS-LS1-7

Front

What is the role of the dialysis tubing in the lab experiment?

Back

The dialysis tubing acts like the small intestine, allowing smaller molecules like glucose to pass through while larger molecules like starch cannot.

Front

Why is the small intestine important for digestion?

Back

The small intestine is crucial for digestion because it is the primary site for nutrient absorption into the bloodstream.

Front

What are the main components of metabolic reactions?

Back

The main components of metabolic reactions include enzymes, substrates, and products.

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NGSS.HS-LS1-7

NGSS.HS-LS2-3

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Front

What is the significance of surface area in the small intestine?

Back

A larger surface area in the small intestine allows for more efficient absorption of nutrients.