Welcome to the Quiz!
This quiz contains 10 questions from a mix of 1 subtopics.
Which part of the small intestine is responsible for the absorption of digested food molecules?
jejunum
colon
ileum
duodenum
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Which of the following is NOT an adaptation of the ileum for absorption?
folded walls into finger-like villi
thick walls to increase diffusion distance
epithelial cells with microvilli
good blood supply to maintain steep diffusion gradients
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After micelles are broken down, how do fatty acids and monoglycerides enter the epithelial cells?
diffusion
active transport
exocytosis
endocytosis
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What are triglycerides packaged into for transport?
lacteals
chylomicrons
lipoproteins
micelles
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How are chylomicrons released from the epithelial cells?
exocytosis
active transport
endocytosis
diffusion
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Which of the following is NOT a step in the absorption of triglycerides across the epithelial cells of the ileum?
micelles are broken down to release fatty acids and monoglycerides
chylomicrons are transported directly into the bloodstream
fatty acids and monoglycerides diffuse into the epithelial cells
triglycerides are packaged into chylomicrons for transport
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Which processes are involved in the absorption of amino acids and monosaccharides across the epithelial cells of the ileum?
(Select all that apply)
active transport
osmosis
co-transport
facilitated diffusion
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Which of the following is TRUE about the absorption of digested food molecules in the ileum?
the ileum plays no role in the absorption of digested food molecules
the ileum's adaptations help to increase the efficiency of absorption
triglycerides are absorbed directly into the bloodstream
amino acids and monosaccharides are absorbed by diffusion only
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What is the term for the finger-like projections on the walls of the ileum that increase surface area for absorption?
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What are the small projections on the surface of epithelial cells in the ileum called?
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