NTR 213 Chapter 3 Complete Latest
Actual set with Questions and
correct/verified Answers
How does Osmosis differ from the process of diffusion? - ANSWER-Osmosis is only concerned with the
movement of water across a membrane.
What is the most common cause of peptic ulcers? - ANSWER-infection with H. pylori
Identify the process that is regarded as absorption. - ANSWER-(not one that involves something being
changed or broken down) Glucose moves into the cells of the small intestine and then into the blood
stream.
Identify the organ that stores bile which is used for the digestion of fat. - ANSWER-gallbladder
What chemical substance helps prepare different parts of the gut for the arrival of food, thus regulating
the rate at which food moves through the digestive tract? - ANSWER-hormones
Which is not one of the three structural features of the small intestine that increase its surface area? -
ANSWER-sphincters; 3 structural features: microvilli, villi, and larger circular folds in the small intestine
wall
Which absorption mechanism(s) require(s) energy? - ANSWER-active transport
During swallowing, the air passages are blocked by a flap of tissue called the pharynx. - ANSWER-false -
the epiglottis
The majority of absorption occurs in the stomach. - ANSWER-false - the small intestine is the main site of
absorption and digestion
The mass of chewed food that is swallowed is called - ANSWER-the bolus
What might occur if the sphincter doesn't close correctly(in between the esophagus and stomach), and
some of the contents from the stomach enter into the esophagus? - ANSWER-heartburn
What is a circular muscle that acts as a valve, opening and closing to allow the gastric contents to move
throughout the GI tract? - ANSWER-a sphincter
The gastric pits produce each of the following except - ANSWER-salivary amylase; does produce:
hydrochloric acid, an inactive form of pepsin, and mucus
The stomach - ANSWER-serves as a temporary storage site
These yogurts are good sources of _____________, which contain active cultures of beneficial bacteria. -
ANSWER-probiotics
Prebiotics are - ANSWER-a non-digestible food ingredient that beneficially affects the host by selectively
stimulating the growth and/or activity of one or a limited number of bacteria in the colon, and thus
improves host health
Actual set with Questions and
correct/verified Answers
How does Osmosis differ from the process of diffusion? - ANSWER-Osmosis is only concerned with the
movement of water across a membrane.
What is the most common cause of peptic ulcers? - ANSWER-infection with H. pylori
Identify the process that is regarded as absorption. - ANSWER-(not one that involves something being
changed or broken down) Glucose moves into the cells of the small intestine and then into the blood
stream.
Identify the organ that stores bile which is used for the digestion of fat. - ANSWER-gallbladder
What chemical substance helps prepare different parts of the gut for the arrival of food, thus regulating
the rate at which food moves through the digestive tract? - ANSWER-hormones
Which is not one of the three structural features of the small intestine that increase its surface area? -
ANSWER-sphincters; 3 structural features: microvilli, villi, and larger circular folds in the small intestine
wall
Which absorption mechanism(s) require(s) energy? - ANSWER-active transport
During swallowing, the air passages are blocked by a flap of tissue called the pharynx. - ANSWER-false -
the epiglottis
The majority of absorption occurs in the stomach. - ANSWER-false - the small intestine is the main site of
absorption and digestion
The mass of chewed food that is swallowed is called - ANSWER-the bolus
What might occur if the sphincter doesn't close correctly(in between the esophagus and stomach), and
some of the contents from the stomach enter into the esophagus? - ANSWER-heartburn
What is a circular muscle that acts as a valve, opening and closing to allow the gastric contents to move
throughout the GI tract? - ANSWER-a sphincter
The gastric pits produce each of the following except - ANSWER-salivary amylase; does produce:
hydrochloric acid, an inactive form of pepsin, and mucus
The stomach - ANSWER-serves as a temporary storage site
These yogurts are good sources of _____________, which contain active cultures of beneficial bacteria. -
ANSWER-probiotics
Prebiotics are - ANSWER-a non-digestible food ingredient that beneficially affects the host by selectively
stimulating the growth and/or activity of one or a limited number of bacteria in the colon, and thus
improves host health
