Predict why vitamins A, D, E, and K supplements should be taken with some food to enable their absorption
What will be an ideal response?
The four fat-soluble vitamins are vitamins A, D, E, and K. As we have seen, fat-soluble vitamins bind bile salts in the small intestine and are absorbed via micelles with other lipids. Since these vitamins are absorbed via micelles, a small amount of food should be present in the small intestine to enable their absorption.
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a) Arcuate artery b) Arcuate vein c) Collecting duct d) Descending loop e) Efferent arteriole
Receptors that combine phasic and tonic coding
A) function in sensations like crude touch. B) convey extremely complicated sensory information to the CNS. C) perceive sensory information. D) are most likely to be peripheral sense receptors. E) do not send sensory information to the CNS.
Since lysosomes cannot make their own enzymes, those enzymes must be synthesized in the Golgi complex prior to the lysosome's formation
Indicate whether the statement is true or false
Which durable protein is found in the nails, hair, and epidermis?
A. Melanin B. Collagen C. Keratin D. Carotene E. Elastin