16 Questions
Where does most digestion and absorption of carbohydrates, proteins, and lipids occur?
Small intestine
What is the function of plicae circulares in the small intestine?
To increase surface area for absorption
Which segment of the small intestine comes after the duodenum?
Jejunum
What is the primary function of the small intestine?
Absorption of nutrients, water, and electrolytes
Which part of the small intestine is well adapted for digestion and absorption?
Villi
What is the least convoluted organ in the digestive system?
Large intestine
What is the function of villi in the small intestine?
Increase the absorptive surface area
Which enzyme carries on the breakdown of starch in the small intestine?
Pancreatic amylase
What is the function of segmentation in the small intestine?
Mixes chyme with digestive juices
What causes the motility of the small intestine to be enhanced during a meal?
Distension of the small intestine
What is the role of microvilli in the small intestine?
Increase the absorptive surface area
What do disaccharidases do in the small intestine?
Fragment polysaccharides into disaccharides
How does peristalsis differ from segmentation in the small intestine?
Primarily moves chyme along the intestine
What type of contractions are intestinal peristaltic contractions?
Weak and slow over short distances
Which type of dietary carbohydrate makes up approximately 50% of the human diet?
Starch
What initially acts upon starch molecules in the mouth and stomach?
Salivary amylase
Test your knowledge about the digestion and absorption processes in the gastrointestinal tract with this quiz based on Dr. Rosazra Roslan's lecture on 29/12/2023. Explore topics such as chemical breakdown of food, movement of nutrients, and the role of small intestine in digestion and absorption.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
