Digestive System and Energy from Food

What are the two primary reasons humans consume food?

• To obtain energy and raw materials

• For cooking and experimenting

• To socialize and celebrate

• For taste and enjoyment

What are the two main types of processes involved in the digestive system?

• Organic and inorganic processes

• Internal and external processes

• Biological and physical processes

• Mechanical and chemical processes

What is the function of enzymes in the digestive system?

• To provide structural support

• To speed up chemical reactions

• To store energy

• To transport nutrients

How many calories does 1 gram of fat typically contain?

• 4 calories

• 9 calories

• 7 calories

• 5 calories

What are monomers?

• Simple building blocks absorbed by cells

• Complex structures in food

• Nutrients that cannot be digested

• Types of digestive enzymes

Tags

NGSS.MS-LS1-7

Which organ is not part of the alimentary canal?

• Stomach

• Small intestine

• Esophagus

• Liver

Which type of epithelial cells line the inner GI tract from the stomach onwards?

• Transitional epithelial cells

• Cuboidal epithelial cells

• Stratified squamous epithelial cells

• Simple columnar epithelial cells

Which process describes the movement of food through the alimentary canal?

• Diffusion

• Filtration

• Peristalsis

• Osmosis

What is the primary goal of the digestive system?

• To eliminate waste only

• To produce enzymes

• To absorb nutrients

• To increase body mass

What happens to indigestible substances in the digestive system?

• They are stored in the liver

• They are eliminated from the body

• They are converted into energy

• They are absorbed into the bloodstream