AP10 Digestive System Overview Lecture

Multiple Select

Which of these are the primary organ systems of the Exchange with the Environment vital function?

• digestive

• respiratory

• circulatory

• integumentary

• endocrine

Multiple Select

Which of these are the main functions of the digestive system? (Mark all that apply.)

• breaks down eaten material into nutrient molecules

• absorbs water and ions

• eliminates undigested residue

• absorbs oxygen

• produce microbes that help digest certain molecules

Multiple Choice

The human digestive system is _______ that is _________.

• a continuous tube; open at both ends

• an open tube; open only at the superior end

• a closed cavity; surround by membrane

• an open cavity; open only at the inferior end

Multiple Choice

Amylase in your saliva breaks down starch into glucose molecules is an example of ___________.

• mechanical digestion

• chemical digestion

Multiple Choice

In order for food to be absorbed into the circulatory system, it must be broken down to the size of _________.

• grains of rice

• sand particles

• molecules

• atoms

• small pebbles

Multiple Choice

What is the primary purpose of the main organs of the digestive tract?

• conduct the food and carry out the digestion, absorption, and elimination

• secrete digestive juices that are added to the digestive tract

Multiple Select

Which of these are main organs of the digestive tract?

• stomach

• liver

• esophagus

• pancreas

• small intestine

Multiple Choice

produces digestive juices that contains variety of enzymes and bicarbonate ions to neutralize stomach acid

• glands in the wall of the small intestine

• salivary glands

• liver

• gallbladder

• pancreas

Multiple Select

What is the function of the fluid secreted by the salivary glands?

• chemically digest food into nutrient molecules by the action of enzymes

• lubricate the bolus

• neutralize stomach acid

• aid in the digestion and absorption of fat

• chemically digest food into nutrient molecules by the action of acids

Multiple Select

What is the function of the digestive juices secreted by the glands in the walls of the stomach?

• chemically digest food into nutrient molecules by the action of enzymes

• lubricate the bolus

• neutralize stomach acid

• aid in the digestion and absorption of fat

• chemically digest food into nutrient molecules by the action of acids

Multiple Choice

The numerous folds of the small intestine acts to ___________

• increase surface area of the lining of the small intestines allowing more absorption of nutrients

• acts like speed bumps to slow the movement of food through the small intestines allowing more absorption of nutrients

Multiple Select

Which of the following are true statements about the human digestive system?

• all of the organs of the digestive system are part of the digestive tract that food flows through

• all organs of the digestive tract perform the same function

• areas along the digestive tract are specialized to perform different functions

• some organs of the digestive system are accessory organs that add secretions into different areas along the tube

• the digestive tract is a continuous tube