digestive & metabolism practice questions

the greater omentum is

a fatty sheet that hangs like an apron over the abdominal viscera

functions of the stomach include all of the following, except

absorption if triglycerides

the first segment of the small intestine is

duodenum

The crown of a tooth is covered by

enamel

which of the following is not a function of the digestive system

filtration

Bile is stored in the

gallbladder

in the process of cellular respiration (glycolysis + oxidative), each molecule of glucose that is metabolized yields enough energy to form _____ molecules of ATP.

36

Parietal cells secrete

hydrochloric acid (HCl)

the last segment of the small intestine

ileum

Plicae and intestinal villi

increase the surface area of the mucosa of the small intestine.

the middle segment of the small intestine is the

jejunum

the organ primary responsible for water absoption

large intestine

The sum of all of the biochemical processes going on within the human body at any given time is called

metabolism

_____ are blade-shaped teeth that function in cutting or clipping

molars

Carbohydrate digestion begins in the

mouth

which of the following is an accessory organ of digestion?

pancreas

Waves of muscular contractions that propel the contents of the digestive tract are called

peristalsis

The enzyme pepsin digests

proteins

in the electron transport chain

reduced molecules ransfer energy to ATP formation, oxidative phorsphorylation leads to ATP formation, NADH and FADH2 donate hydrogen atoms

During glycolysis

(1) two molecules of ATP are consumed (2) a molecule of glucose is converted into two molecules of pyruvic acid (3) four molecules are produced

the carbon dioxide of respiration is formed during

Krebs cycle

the prominent ridges in the lining of the empty stomach are called

rugae