Physical and Chemical Changes in Digestion

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What is Chemical Digestion?

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Chemical Digestion is the process of breaking down food into smaller molecules using enzymes, which changes the chemical structure of the food.

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What is Physical Digestion?

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Physical Digestion involves the mechanical breakdown of food into smaller pieces without changing its chemical structure, such as chewing.

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Is spoiling food a physical or chemical change?

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Spoiling food is a chemical change.

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What is an example of a Chemical Change in digestion?

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An example of a Chemical Change in digestion is enzymes in the mouth and stomach breaking down fats, proteins, and carbohydrates.

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What happens during Physical Change in digestion?

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During Physical Change in digestion, food is mechanically broken down, such as when it is chewed or churned in the stomach.

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Is a rotting banana a physical or chemical change?

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A rotting banana is an example of a chemical change.

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What is an example of a Physical Change?

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An example of a Physical Change is an ice cube melting from the heat of your hand.

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What role do enzymes play in digestion?

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Enzymes help in the chemical digestion of food by breaking down complex molecules into simpler ones.

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What is Peristalsis?

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Peristalsis is the wave-like muscle contractions that move food through the digestive tract.

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What is the difference between a physical change and a chemical change?

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A physical change alters the form or appearance of a substance without changing its chemical composition, while a chemical change results in the formation of new substances.