Micronutrients Flashcards
Micronutrients are needed in relatively _________ amounts, and they enable the body to produce _________, __________, and other substances essential for growth and development.
SMALL \+ ENZYMES \+ HORMONES
Micronutrients are tiny, but consequences of their absence are __________.
SEVERE
Name the 2 subgroups of Micronutrients?
VITAMINS
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MINERALS
What are the 4 typical measurements used in terms of dosage of vitamins and minerals?
RDA, RECOMMENDED DIETARY ALLOWANCE (amt req to avoid deficiency) \+ AI, ADEQUATE INTAKE (recommended average daily intake) \+ DRI, DIETARY REFERENCE INTAKE (amt required for optimal health) \+ UL, UPPER LIMIT (limit to avoid toxicity, only applies to fat-soluble vitamins)
A vitamin is organic, and many are ____-___________, bound to protein assisting in biological activities.
CO-ENZYMES
Name the form of vitamin either produced by intestinal flora or assembled from raw material?
PRO-VITAMINS
What are the 2 main groups of vitamins?
WATER SOLUBLE
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FAT SOLUBLE
Name the 4 (fat) lipid-soluble vitamins?
VITAMIN A, D, E and K
What is the name for vitamin toxicity that can arise from fat-soluble vitamins?
HYPERVITAMINOSIS
Fat soluble vitamins are absorbed and stored particularly in the liver in which type of cell?
HEPATOCYTE
Name the 2 most common forms of Vitamin A, and what they’re great for?
RETINOL - animal sources \+ BETA-CAROTENE - plant sources \+ NIGHT VISION and PERIPHERAL VISION
What is required for adequate absorption of both types of Vitamin A? (2)
BILE SALTS
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DIETARY LIPIDS
Which vitamin do pregnant woman need to be careful not to over-ingest, for risk of birth defects?
A
The sunshine vitamin, vitamin _____, regulates ___________ and ____________.
D \+ CALCIUM \+ PHOSPHORUS
(bone growth)
A deficiency in Vitamin D can lead to which 2 things in adults, and which presentation in children?
OSTEOPEROSIS
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OSTEOMALACIA
(RICKETS IN CHILDREN)
Vitamin ____ is a powerful antioxidant, protecting cells from oxidization and neutralizing unstable ________ __________.
E
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