Question at position 34 Intestinal juice is secreted in response to chyme or ______ of the small intestine.DistentionInfectionContractionFolding单项选择题

A

Distention

B

Infection

C

Contraction

D

Folding

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类似问题

Question textRefer to the digestive system diagram below. For each statement, select the enzyme, specialised feature, secretion, or absorption mechanism that best fits each statement. A type of motility associated with the region labelled D is Answer 1 Question 14[select: , tonic contraction, swallowing, gastric churning, peristalsis, mastication], and this region primarily functions to Answer 2 Question 14[select: , begin starch digestion, absorb most amino acids, store bile between meals, move contents toward the rectum and aid faeces elimination, secrete pepsin]. A process strongly associated with the region labelled B is Answer 3 Question 14[select: , pepsin secretion, salivary amylase secretion, villus absorption, water reabsorption, bile release], and this process contributes to digestion of Answer 4 Question 14[select: , monosaccharides into ATP, large proteins into peptides, large polysaccharides such as starch, triglycerides into fatty acids, cellulose into glucose]. A secretion entering the digestive tract from the organ labelled E is Answer 5 Question 14[select: , bile, HCO3-, saliva, pepsin, digestive enzymes], and this secretion primarily functions to Answer 6 Question 14[select: , begin starch digestion in the mouth, increase villus surface area, digest proteins in the stomach, neutralise acidic chyme, emulsify lipids to aid fat digestion]. Amino acids are absorbed via Answer 7 Question 14[select: , secondary active transport with Na+, not absorbed in humans, simple diffusion then chylomicron formation, facilitated diffusion via GLUT transporter, osmosis] in the region labelled Answer 8 Question 14[select: , A, C, B, D, E].

Question at position 56 Where in the small intestine does segmentation occur most frequently, and why is it important?Jejunum; it prepares chyme for secretion of motilin.Duodenum; it mixes chyme and improves nutrient absorption.Ileum; it pushes chyme rapidly toward the large intestine.Cecum; it begins large intestine digestion.

Which of the following statements about the role of saliva in the monogastric digestive tract is FALSE:

What is the primary site of starch digestion in horses?

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