The Digestive and Excretory Systems-Life Science

Which statement best describes the breakdown of food in the digestive system?

Carbohydrate digestion starts in the mouth and protein digestion starts in the stomach.

Which occurs during digestion?

Physical digestion prepares the food for chemical digestion.

The diagram shows a nephron. Where is the blood first filtered?

W

Which are structures of the excretory system? Select four options.

kidney, bladder, ureter, urethra. (A,C,E&F)

The functional unit of the kidney is the ____

nephron

Which is the proper order of structures that contact the substances removed from the blood?

nephron → ureter → bladder → urethra

Which structures of the digestive system, aside from the small intestine, release substances that help break down food in the small intestine?

pancreas and liver

Which might indicate to a doctor that there is an issue with someone's body chemistry?

sugar in the urine

Which is the role of the gall bladder?

to store the liquid produced by the liver

Once the teeth start grinding food, is produced to make food moist and slippery.

⇒ saliva