Anatomy Ch. 25 - Connect HW Questions

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Mass movements of the colon occur __________ times per day.

1 to 3

Ion exchange molecules in the plasma membrane of the parietal cells exchange __________ ions going out for __________ ions coming in.

Bicarbonate; Chloride

In the parietal cells, the enzyme carbonic anhydrase causes a reaction between __________ and __________.

Carbon Dioxide; Water

Blood sugar refers to circulating levels of __________ in the blood.

Glucose

How often can a sucrase molecule be used to hydrolyze sucrose?

Many times

Where is sucrase found in the human body?

On the microvilli of the small intestine

Mass movements in the colon are stimulated by the presence of __________ in the __________. -food; stomach -chyme; duodenum -feces; rectum

Only the first and second choices are correct

Stimulation from the __________ nervous system via the __________ nerve causes the secretion of HCl in the stomach.

Parasympathetic; Vagus

Which of the following enzymes is produced by the stomach?

Pepsin

Which of the following does not stimulate the secretion of HCl in the stomach?

Secretin

Which of the following statements is true regarding sucrase? -Sucrase joins glucose and fructose together to form sucrose. -Sucrase breaks sucrose into glucose and fructose. -Sucrase forms a disaccharide from a monosaccharide. -Sucrase breaks sucrose into hydrogen, oxygen and carbon atoms

Sucrase breaks sucrose into glucose and fructose

Cholecystokinin, which is produced in the small intestine, inhibits gastric secretions in the stomach.

True

Defecation reflexes are stimulated by the presence of feces in the rectum.

True

In the parietal cell, carbonic acid dissociates into a bicarbonate ion and a hydrogen ion.

True

Secretin is released from the duodenum in response to _________.

hydrochloric acid in chyme


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