HA Final Review

The esophagus, stomach and small intestine are all organs of the

• circulatory system

• digestive system

• excretory system

• immune system

What is the significance of the villi in the small intestine?

• They increase surface area for nutrient absorption

• They increase surface area for water absorption

• They release enzymes for digestion

• They aid in mechanical digestion

This organ creates bile, which is used to emulsify fats , and urea, from the breakdown of unused amino acids.

• small intestine

• large intestine

• pancreas

• liver

This organ releases a variety of digestive enzymes into the small intestine to allow for the completion of chemical digestion.

• small intestine

• large intestine

• pancreas

• liver

What do we call the involuntary, muscular contractions that force food along the digestive tract?

• mechanical digestion

• chemical digestion

• enzyme action

• peristalsis

Which organ stores bile?

• liver

• gall bladder

• panceras

• stomach

Which organ of the digestive system is the site of water absorption, but no digestion?

• esophagus

• stomach

• small intestine

• large intestine

What do we call a protein that is capable of breaking down large nutrient molecules into building blocks that are small enough to be used by the cells?

• enzyme

• hormone

• antibody

• neurotransmitter

Which nutrient is our body's major source of energy?

• proteins

• carbohydrates

• lipids

• minerals

Proteins in the meat that an individual eats would be broken down into

• simple sugars

• fatty acids and glycerol

• amino acids

• enzymes