Chapter 23 study guide

Question 1

What is digestion?

Answer 1

catabolic process that breaks macromolecules down into monomers small enough for absorption.

Question 2

What is absorption?

Answer 2

Is the process of moving substances from lumen of gu

Question 3

People that have deficient amounts of lactase and cannot consume lactose is called?

Answer 3

Lactose Intolerance

Question 4

Proteins are broken into

Answer 4

Large polypeptides

Question 5

The major organ of digestion and absorption is?

Answer 5

The small intestine

Question 6

The point at which the small intestine joins the large intestine is called?

Answer 6

the ileocecal valve

Question 7

What are the circular folds?

Answer 7

Permanent folds along the small intesting that force chime to slowly spiral through the lumen, allowing more time for nutrient absorption.

Question 8

What are the villi?

Answer 8

Fingerlike projections of mucosa with a core that contains dense capillary bed and lymphatic capillary called lacteals.

Question 9

Cytoplasmic extensions of mucosal cell that give fuzzy appearance are called?

Answer 9

The microvilli

Question 10

The Brush Border is defined as?

Answer 10

the fuzzy appearance that contains membrane bound enymes called brush border enzymes used for final carbohydrate and protein digestion.