Exam 32: Digestion and Nutrition

The structure that covers the opening to the trachea during swallowing,thereby preventing food from entering the air passageway,is the

An autotroph obtains the energy that it needs to maintain homeostasis from the sun.

If you were observing some filter feeders,you would be looking at autotrophs.

Acid reflux or "heartburn" is caused when the gastric juice moves back into the esophagus through the pyloric sphincter.

If you were working in a lab and were told to take a sample of amylase from a subject,you would sample from the small intestine.

Which of the following is caused by a vitamin C deficiency?

BMI stands for body mass index.

The main site of food absorption in the human digestive system is the

The three main regions of the human small intestine proceeding in sequence from the stomach to the large intestine are

The main site of water and mineral absorption in the human digestive system is the

Rings of muscle in the digestive tract that can open and close,regulating the movement of food into or out of parts of the digestive system,are

The process by which a cell engulfs particulate matter is phagocytosis.

If you didn't consume enough niacin (vitamin B₃),you would have diarrhea since you would have what disease?

Autotrophs make their own food using energy captured from the sun.

The solid waste that leaves the digestive tract of a vertebrate is called chyme.

A nutrient is a substance that an organism uses for

The tadpoles of Scaphiopus toads have less variable intestinal length in their tadpoles than Spea toads.

Jellyfish have incomplete digestive tracts.

If a doctor designs an operation intended to help victims of stomach cancer who have lost most of their stomachs by fusing the remaining stomach tissue with the esophagus,the main problem is likely to be damage to the esophageal tissue from stomach acid.

An enzyme that breaks down protein is