Q7 of 40 Page 164

In which order do these events occur in human nutrition?

•Ingestion – consumption/taking in of food


•Digestion – breaking up of food particles into small fragments


•Absorption – absorption of broken down food particles into the blood


•Assimilation – soluble food molecules move to different organs to provide energy through blood

More from this chapter

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5

The diagram represents a section through the small intestine.


What is the role of the structure labelled X?

 6

When a person eats some egg white, proteins and water enter the stomach. Which substances are found leaving the stomach and leaving the small intestine?

 8

The diagram shows the human gut. Which numbered structures secrete digestive enzymes?

 9

Only two of the following statements accurately describe what happens in the mouth.

1. Amylase breaks down large starch molecules into smaller maltose molecules.


2. Chewing increases the surface area of food for digestion


3. Saliva emulsifies fats into smaller droplets.


4. Teeth breakup large insoluble molecules into smaller soluble molecules.


Which statements are correct?