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Digestive System Overview

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Questions and Answers

What is the main purpose of the digestive system?

Storing large molecules for future use

Reassembling large molecules into even larger compounds

Preventing large molecules from entering the body

Breaking down large molecules into smaller subunits for usability (correct)

Why are large molecules typically broken down into smaller subunits?

Large molecules are already in usable form

Large molecules are more nutritious than small subunits

Large molecules are easily absorbed into cells

Large molecules are chemically inert and need to be made usable (correct)

What is the function of the gall bladder in the digestive system?

Metabolizing absorbed nutrients

Producing key enzymes for starch digestion

Storing and secreting bile to emulsify fats (correct)

Absorbing water and dissolved minerals

What causes the unidirectional movement of food along the alimentary canal?

Peristalsis from contraction of sequential longitudinal muscles (A) Signup and view all the answers

Where does nutrient absorption primarily take place in the digestive system?

Small intestine (A) Signup and view all the answers

What is the main function of the salivary glands in the digestive process?

Moistening food bolus for starch digestion (B) Signup and view all the answers

What is the function of amylase in the digestive system?

Digests amylopectin into dextrin chains (C) Signup and view all the answers

Which enzyme catalyzes hydrolysis reactions in the digestive system?

Amylase (C) Signup and view all the answers

Where is glucose stored in the body?

As glycogen in the liver (A) Signup and view all the answers

What is the main function of churning in the digestive process?

Breaks down food via physical actions (C) Signup and view all the answers

Which organ is responsible for regulating the uptake of glucose?

Pancreas (A) Signup and view all the answers