Small Intestine Absorption Structures

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What is the primary function of digestive enzymes?

To aid in the absorption of nutrients into the bloodstream

To facilitate the elimination of undigested waste material

To provide energy for the digestive process

To break down large food molecules into smaller nutrient molecules (correct)

Which part of the digestive system is primarily responsible for nutrient absorption?

Stomach

Large intestine

Esophagus

Small intestine (correct)

What is the function of microvilli in the small intestine?

To secrete digestive enzymes

To increase the surface area for nutrient absorption (correct)

To propel food through the digestive tract

To store undigested waste material

Which of the following is an example of extracellular digestion?

Digestion in the stomach of a human Signup and view all the answers

What is the primary function of villi in the small intestine?

To increase the surface area for nutrient absorption Signup and view all the answers

Which of the following nutrients is primarily absorbed in the small intestine?

All of the above Signup and view all the answers

What is the primary function of the gastrovascular cavity in simple animals like hydras?

Digestion and distribution of nutrients Signup and view all the answers

Which of the following is an advantage of having a complete digestive tract with two openings (mouth and anus)?

It reduces the risk of an animal digesting its own cells and tissues Signup and view all the answers

What is the primary function of the alimentary canal (digestive tube) in complex animals?

To carry out digestion and absorption in a stepwise, efficient fashion Signup and view all the answers

Which of the following is a characteristic of intracellular digestion?

Food particles are engulfed by endocytosis and digested within food vacuoles Signup and view all the answers

Small Intestine Absorption Structures

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Questions and Answers

What is the primary function of digestive enzymes?

Which part of the digestive system is primarily responsible for nutrient absorption?

What is the function of microvilli in the small intestine?

Which of the following is an example of extracellular digestion?

What is the primary function of villi in the small intestine?

Which of the following nutrients is primarily absorbed in the small intestine?

What is the primary function of the gastrovascular cavity in simple animals like hydras?

Which of the following is an advantage of having a complete digestive tract with two openings (mouth and anus)?

What is the primary function of the alimentary canal (digestive tube) in complex animals?

Which of the following is a characteristic of intracellular digestion?

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