AP BIOLOGY

Detailed explanation-1: -The goblet cells consume excess water from the undigested food residues in the large intestine.

Detailed explanation-2: -The colon removes water and some nutrients and electrolytes from partially digested food. The remaining material, solid waste called stool, moves through the colon, is stored in the rectum, and leaves the body through the anus.

Detailed explanation-3: -The large intestine’s main job is to remove water from the undigested matter and form solid waste (poop) to be excreted. The large intestine has three parts: The cecum (pronounced: SEE-kum) is the beginning of the large intestine.

Detailed explanation-4: -Its primary role is to store the feces until defecation. The feces are propelled using peristaltic movements during elimination. The undigested food from the large intestine enters the rectum. This undigested food is known as feces.

Detailed explanation-5: -Water is absorbed by the large intestine by osmosis, with diffusion occurring in accordance with the osmotic gradient. Sodium is absorbed by the sodium/potassium pump in the colon, which diffuses potassium and sodium in opposite directions due to the formation of concentration gradients.