Ch. 3 Flashcards
The enzyme salivary amylase begins chemical digestion of... lipids. hormones. proteins. carbohydrates.
carbohydrates.
Gastric juice in the stomach contains all of the following except water. trypsin. hydrochloric acid. pepsin.
trypsin.
The function of pancreatic proteases is to
break down proteins in the small intestine.
break down proteins in the pancreas.
break down proteins in the stomach.
break down proteins in the large intestine.
break down proteins in the small intestine.
Food moves through the esophagus by means of segmentation. swallowing. peristalsis. contraction of the diaphragm.
peristalsis.
True or False?
Microvilli increase the surface area of the small intestine.
True
True or False?
Active transport of nutrients occurs when nutrients need to move from higher concentration to lower concentration.
False
All of the following help destroy antigens except phagocytes. allergens. antibodies. lymphocytes.
allergens.
True or False?
A food allergy occurs when the body’s immune system reacts inappropriately to a protein found in a food.
True
People with celiac disease should avoid all of the following except onion rings. rye bread. chocolate. whole wheat bread.
chocolate.
Which of the following is one of the ways that the endocrine system interacts with the digestive system?
Secretes hormones that regulate how much we eat
Eliminates wastes generated in the body
Transports nutrient to cells
Controls the passage of food in the blood stream
Secretes hormones that regulate how much we eat
True or False?
If the gallbladder is removed, bile is no longer produced by the body.
False
Exchange of nutrients and gases occurs through arterioles. veins. capillaries. arteries.
capillaries.
True or False?
When exercising, most of the body’s blood flow is to the skeletal muscles.
True
Wastes are eliminated from the body by all of the following body systems except the urinary system. the endocrine system. the integumentary system. the respiratory system.
the endocrine system.
The primary usable energy source for the cell is ATP. amino acids. glucose. fatty acids.
ATP.
All of the following systems eliminate waste generated by the body except the
respiratory system. integumentary system.
nervous system.
urinary system.
nervous system.
True or False?
Bile is important in the digestion and absorption of proteins.
False
The organ that produces bile is the pancreas. gallbladder. liver. stomach.
liver.
All of the following are true about mucosal cells except they secrete mucous. they line the GI tract. they are part of the lymphatic system. they are made of epithelial tissue.
they are part of the lymphatic system.
The substance in the digestive system that lubricates, moistens, and protects the surface of the lumen is chyme. bile. serous fluid. mucus.
mucus.
True or False?
Enzymes signal the pancreas and gallbladder to secrete digestive substances into the small intestine.
False
Which type of chemical speeds up the rate of reaction, without itself being altered or degraded? enzymes steroids lipids hormones
enzymes
The symptoms of gastroesophageal reflux disease (GERD) can be reduced by avoiding all of the following except
eating fried foods.
smoking.
consuming beverages between, rather than with, meals.
eating chocolate.
consuming beverages between, rather than with, meals.
